AFAQ Leaders ClubMCQ Guide Science: Elementary Level

1) The neurons which decided about the action for a certain stimulus? Sensory Neuron, Motor Neuron and Inter Neurons

2) Heartbeat is controlled by? Medulla Oblongata

3) Sensory Neurons carry messages towards? Sense Organs

4) The part of the body which filters waste from blood? Kidney

5) The function of nephron is to? Form Urine

6) Cell makes copies of its chromosomes during? Inter-phase

7) Chromosomes are made of? DNA and Proteins

8) In humans, a sperm has 23 chromosomes, egg cell has? 23 chromosomes

9) In humans, the eye color is developed due to the effects of? Genes

10) Plasmid and attached foreign gene with it are collectively called? Recombinant DNA

11) Which of the following is not a biotechnology product? Cloning

12) Why do genetic engineers use bacteria in genetic engineering? Bacteria divide very fast and make colonies.

13) Indicate an air pollution among the following? Carbon Dioxide

14) The gas which is responsible to stop ultraviolet radiation coming from the? Carbon Dioxide

15) Identify the chemical which cause the rain to become acidic? Oxides of Sulphur & Nitrogen

16) The phenomenon which does not lead to global warming? Photosynthesis

17) The amount of which greenhouse gas can reasonably control? Carbon Dioxide

18) Which of the following is a balanced chemical equation? 2Fe + 3Cl2 → 2FeCl3

19) How many oxygen atoms are present in one molecule of Mg(HCO3)2? 6

20) Thermal decomposition of Calcium Carbonate produces a gas? Carbon Dioxide

21) King of Chemicals is? H2SO4

22) Lactic Acid is found in? Curd

23) The S. I Unit of pressure is? Pascal

24) hydrostat pressure of the liquids depends on? Depth of the Vessel

25) As we go up in the air? Atmospheric pressure decreases

26) Which instrument is used to measure Height? Altimeter

27) An Electronic Balance is used to measure? Mass

28) Which of the following is the S. I Unit of Volume? m3

29) The Mass of 2kg equals? 2000g

30) 1km =? 1000m

31) Pipettes are commonly used for? Measuring the volume

32) Which of the following is the biggest source of Heat Energy? The Sun

33) When an object is heated, the movement of its particles___? Increases

34) Thermal Expansion is not involved in? Wooden Stick

35) The rise of liquid in the thermometer is due to? Expansion

36) When Ice melts and water reaches at 40℃, its density? Increases

37) An empty steel container is sealed and heated, which of the following properties of gas present in the container increases? Pressure

38) The instrument which use the property of expansion & contraction of liquids is? Manometer

39) The A ray parallel to principle axis, after refraction from convex lens? Passing through the middle of F and C

40) The center of lens is called? Optical Center

41) The image focused by a concave lens is? Real

42) In Human Eye, Image is formed on? Retina

43) Which power plant is almost free from environmental pollution problems?

Nuclear power plant44) Which of the following is an out-put device?

Printer45) Which of the following a processor?

Tape Recorder46) An environment that helps you seeing heavenly objects?

Telescope47) Telescope on the earth suffer from the fact that light coming from the stars has to pass through?

Space48) A vehicle, designed to carry satellite in outer space is?

Space Craft49) Pressure can be calculated with?

Force/ Area50) The natural heat energy trapped underground is called?

Geothermal Energy51) Gasoline is major fuel used to run?

Vehicles 52) The density of Water is maximum at?

4℃53) The property of expansion and contraction of liquids due to change in temperature is used in?

Thermometer54) A disk is used in?

Reflecting Telescope, Radio Telescope and Refracting Telescope55) Moon is a Satellite as?

It orbits a planet.56) The theory that the earth is expanding was forwarded by?

E.P Hubble57) The Structural and functional unit of kidney is?

Nephron58) Lower portion of loop of Henle is Impermeable to?

Water 59) The Spinal Cord is the continuation of the?

Brain System60) Thinning of glaciers is associated with?

Deforestation, Green House Effect and Global Warming61) EPA stands for?

Environmental Protection Agency62) A part of a Neuron which receives action is?

Axons63) Which of the following is balanced equation?

Cu(NO3)2 + 4Nal → 2Cul + l2 + 4NaNO3

64) The “H2 + F2→ 2HF” reaction is? Neutralization

65) Acid have PH Value?

Less than 766) The Neutral Substance have PH value?

767) The Vernier Calipers is used for measuring the?

Diameter of Squares68) The two main physical sciences are?

Physics & Chemistry 69) The volume of liquid is measured in?

Liters70) The Thyroid Gland is attached to the?

Nervous System 71) A fertilized egg is called?

Zygote72) Two solutions are mixed together and form an insoluble product, the product is called?

Precipitation 73) The PH Paper is a special kind of paper, which is coated with a?

Electronic Substance74) The Acids have?

Sour Taste75) One-Fifth of the air consists of?

Oxygen 76) Force is equal to pressure multiplied by?

Area 77) When paraffin wax solidifies?

It Contracts78) When electric current flows in a wire magnetic field?

A force is produced 79) The long coil of wire with many loops is called?

Solenoid80) The laser light invented in?

196081) The most powerful energy in universe is?

Nuclear Energy82) Alexander Graham Bell invented the ___ in 1876?

Telephone83) People who travel in Spacecraft are called?

Astronauts84) Hypothesis is a?

Prediction85) The word “SCIENCE” is derived from?

Latin86) The word “TECHNOLOGY” is derived from?

Greek 87) The typical flowering plant can be divided into ___ parts?

288) A stem has a bud at the tip called?

Terminal Buds 89) The flower is the ____ part is a plant?

Reproductive90) The body of animal can be divided in to ___ distinct regions?

291) The Water prof material called?

Chitin 92) Human Body has ___ Bones?

20693) We take food into oval cavity through?

Mouth 94) Salivary Glands are present in?

Oral Cavity 95) The oxygen of air is absorbed in air through?

Villi96) The Bile is released by?

Liver97) There are ___ steps in breathing process?

298) Common Cold is a common disease of?

Respiratory System99) The Pancreatic Juice is made in the?

Pancreas100) Many respiratory diseases like cancer and emphysema are caused by?

Smoking 101) Wheel is a ___ Machine?

Simple 102) Types of Pulleys are?

Fixed, Movable and Compound 103) Bicycle is a ___ Machine

Complex104) Simple Machine make our work?

Easier105) Human Heart circulates the entire blood throughout the body almost ___ times a day?

1000106) The size of human heart is approximately?

Human Fist 107) The Human Heart has ___ Chambers?

4108) There are ___ types of blood vessels?

3109) In plants, food is prepared in the?

Leaves 110) Plants absorb water from soil through?

Roots 111) The underground part of a plant is called?

Root System112) The outer layer of a stem is called?

Epidermis113) Heart is a ___ organ.

Muscular114) The largest artery is?

Aorta115) The first heart transplant was carried out in?

1967116) Which of the following is the best conductor?

Copper 117) Convection occurs in?

Liquids & Gasses 118) The water heating coil is placed near of bottom of electric kettle because?

Water is good conductor 119) Flower is reproductive organ of?

Plants 120) Leaves forming corolla are called?

Petals 121) The inner most part of the flower are called?

Carpels 122) These are ___ kinds of Pollination?

2123) Self-Pollination example is?

Tomato124) The Cross-pollination example is?

Rose 125) There are ___ kind of reproduction?

2126) The process of formation of zygote due to fusion of sperm with egg is called___?

Fertilization 127) Ecosystem has ___ important components?

2128) The biotic components of an ecosystem are divided into___ components?

3129) Habitat means a place to ___?

Live130) The environment of forest is always?

Moist131) The driest regions of the land are called?

Desert 132) Thunder are very ___?

Cold Region 133) Usually the temperature is ___ day time?

High134) The temperature is ___ at night time?

Low 135) Water is ___ for life?

Essential 136) The category of Cat is?

Secondary Consumer 137) Which of the following is habitat of Star Fish?

Sea Water138) The food of Algae?

Bacteria 139) The Organisms cannot live without?

Water 140) There are ___ major types of water found on earth?

2141) ___ % of earth water is found in seas?

97%142) Which process is used for sea water to make it drinkable?

Distillation 143) 97% of water available on earth is found?

In Seas144) Which of the following is a reservoir of salt water?

Seas145) Approximately ___ of the body consists of water?

Two, third146) Growth is an increase in the size of___?

An Organism 147) Human beings have ___?

Babies 148) Pine Trees produce male and female reproductive organs called?

Cones149) The reproduction which takes place from one parent only, is called?

Asexual reproduction150) Traffic Light Signals are of ___ colors?

3151) ___ are important in the life a human being?

Colors152) Sun Light splits in to ___ colors?

7153) Electricity is the form of ___?

Energy 154) There are ___ types of charges?

2155) There are ___ fundamental particle of an Atom?

3156) The symbol of Hydrogen is?

H157) The Chemical Formula of Glucose is?

C6H12O6

158) The lightest particle of an atom is? Electron

159) The animals who eat plants are called? Herbivores

160) The Animal, who eat meat are called? Carnivores

161) Human beings and some animals are called? Omnivores

162) The formula of Water is? H2O

163) The water pollution is also caused by? Oil Pills, Oil Tankers and Oceans

164) Water is made up of two gasses? Oxygen & Hydrogen

165) Sound is a form of ___? Energy

166) “Oscillation” means? Swing

167) The Waves are of ___ types? 2

168) The example of Electromagnetic Waves is/are? Radio & TV Waves

169) Human Beings can listen sound in the range of? 20Hz to 20000Hz

170) Door Bells is a devise used at a___? Door

171) Matter is made up of___? Tiny Particles

172) In Scientific terms Heat is a type of? Energy

173) The Heat is a degree of? Temperature

174) Heat can travel through solids by? Conduction

175) Hot air from the earth rises and cold air rushes to take in place, this moving air is called?

Wind176) The upward current of warm air that rises by conservation are called___?

Thermal177) The degree of Hotness or Coldness of a body is called___?

Temperature178) When a body is cold, its molecules move ___?

Slowly179) When a body is heated, its molecules begin to move ___?

Faster180) In order to find the exact temperature of a body, an instrument is used called___?

Thermometer181) Which scale is used by scientists?

Kelvin Scale182) Types of Thermometers are?

Mercury Thermometer, Alcohol Thermometer and Digital Thermometer183) The bending of light is called?

Refraction 184) Red, Blue and Green colors are called ___ colors of light?

Primary 185) Types of waves?

Transverse and Longitudinal Waves 186) For transverse wave, the distance between two adjacent crests or troughs is called?

Wave Length 187) The Amplitude is measured in?

Meter 188) The number of vibrations produced by a vibrating object in one second is called its ___?

Frequency189) The distance covered by a wave in one second is called?

Speed190) The sounds which are pleasant to a person are?

Songs, Radio and TV191) The sounds which are unpleasant to a person?

Noise of traffic and Machines 192) The Pitch tells us whether the sound is ___?

Shrill or grave 193) The Battery is a source of ___?

Electrical Energy 194) There are two ends of the battery called?

Electrodes 195) The rate of flow of charge is called?

Electric Current 196) The path of flow of electric current is ___?

Electric Circuit197) An electric can be made “close” or “open” with the help of a ___?

Switch 198) The type of circuit is ___?

Parallel circuit199) The Instrument used for measurement of current is called___?

Ammeter 200) The Ammeter is always connected in series in a ___?

Circuit 201) The Instrument used for measurement of Voltage is called?

Voltmeter202) The relationship between Voltage and Resistance is also called ___?

Ohm’s Law203) The Pin Plug has ___ pins?

3204) It is an electrical appliance that coverts electrical energy into light?

Bulb205) Poor Insulation can cause?

Short Circuit206) The “Sun” is a ___?

Star 207) There are ___ stars in the night.

Numerous 208) “The Big Bang” is a ___?

Theory 209) “The Big Bang Theory” was first proposed in?

1927 210) Water pollution is harmful to?

Life 211) An Atom is the ___ particle of matter?

Smallest212) Valiancy is the ___ power of an atom?

Combining213) The types of changes are called?

Chemical Charges and Chemical Reactions214) Plants need water from the?

Soil215) Plastics are?

Polymers216) Natural Gas is a mixture of many?

Gaseous Hydrocarbons 217) Petrol is used in various kinds of ___?

Vehicles, Scooters & Motorcycles 218) Plants prepare food with the help of Chlorophyll and Sunlight is called?

Photosynthesis 219) Those objects which have fast flow of heat through them are called?

Good Conductor 220) Metals are?

Gold, Iron & Copper221) Example of Good Conductor is?

Iron 222) Example of Bad conductor is?

Table, Chair & Wood223) The movement of molecules from downward to upward and from upward to downward is

called? Convection Current

224) Wind and Ocean currents are examples of? Convection

225) In water geyser, water is heated in the boiler using? Gas & Electric Heater

226) The Convection Currents are also used in? Air Conditioners

227) The energy of sun reaches us by? Radiation

228) Vacuum exists between? Sun & Earth

229) Convection can take place in? Water Only

230) “The Big Bang Theory” was first proposed by? George Lemaitre

231) Our sun is a ___ sized star? Medium

232) Sun is a ___ Star? Yellow

233) Stars are relatively ___ than Sun? Colder

234) Stars are very far away from our Sun

235) What is SUN? Medium Sized Star

236) What is name of our Galaxy? Milky Way

237) The Universe was created about ___ years ago? 13 Billion

238) The word “Bang” means? Sound

239) We have ___ theories regarding Universe? 3

240) Stars can live for ___ years? Billions

241) The Sun, its planets and everything that orbits, it’s called? Solar System

242) Planet Mercury is ___ to Sun? Closest

243) ___ looks blue and white from Space? Earth

244) The “Ellipse” means ___ in shape? Oval

245) One type of refracting Telescope uses? Lenses

246) The “Constellations” are? Patterns of Stars

247) The Oval Shaped Galaxies are? Bared Spirals

248) The Electrical Energy commonly known as? Electricity

249) The Electrons, moving from one place to another, are called? Free Electrons

250) The Materials through which electrons can flow easily are called? Conductors

251) Electricity does ___ work? Useful

252) The “Space” is? Emptiness

253) The galaxies that appear elliptical in shape are called? Elliptical Galaxies

254) Our Sun and Solar System are part of this? Galaxy

255) Big Dipper is the collection of ___ stars? 7

256) Leo Means? Lion

257) A human eye can see about ___ Stars? 1000

258) Stars have? Life Cycle

259) Such hot balls of gasses and dust are called___? Protostar

260) Magnets are generally made up of? Iron

261) A lever has ___ basic components? 3

262) The escalator is an example of? Gear

263) The Knife is an example of? Wedge

264) What is the source of energy in automobile? Fuel

265) It is the store (Internal) energy of the body? Potential Energy

266) The boiling water changes into steam by using the heat energy ___? Above 100℃

267) 1 mile≅? 1613

268) The temperature of earth at four feet depth is? 55℃

269) Renewable energy is also called? Green Power

270) When we rub our hands, the change is? Potential Energy into Kinetic Energy

271) The LCD stands for? Liquid Crystal Display

272) The ability to do work is called? Energy

273) The study of the effects of force upon object is called? Mechanics

274) The word Quantity means? How Much

275) The height of the Mount Everest is? 8900m

276) The word Science means? Knowledge

277) A Force can be measured by instrument called? Spring Balance

278) Green Grass looks green because? It reflects the green color & absorbs the rest of the colors.

279) The Incident Angle is equal to? Reflected Ray

280) The branch of science which deals with Sound is called? Acoustics

281) The word “Cochlea” means? Snail

282) Eardrum is located in___ ear. Middle

283) ___ is the smallest bone of our body? Stirrup

284) The cochlea of inner ear has___ hair like nerve cells? 20000

285) Bumping means ___ of particles? Hitting

286) Different media have ___ velocity of sound? Different

287) The outer ear consists of canal that is? 2 Centimeters Long

288) The nerve cells in cochlea? Receive sound wave & Vibrate

289) The breakdown of a chemical compound in to its constituents is called? Electrolysis

290) The first GPS Satellite ea launched in? 1978

291) Which satellite is called “Killer Satellite”? Anti Satellite

292) “GPS” stands for? Global Positioning System

293) Comets, asteroids and meteors are ___ satellites? Natural

294) It is a small free flying object that revolves around another space object is called? Satellite

295) The amount of matter contained by an object is called? Mass

296) Error which occurs due to wrong positioning of Eye? Parallax Error

297) The upper surface of liquid in measuring instrument is called? Meniscus

298) ___ keeps the planet on orbit around the sun? Gravitational Force

299) Energy neither created nor destroyed but it is changed from one form to another? Law of conservation of Energy

300) It is used to form a larger object? Telescope

301) It is used to observe an object from a concealed place? Periscope

302) The word “TELE” means/ Far off

303) The microscope consists of two converging lenses is called? Objectives

304) ___ has the highest rate of lightning strikes? Singapore

305) The average life span of a stomach cell is? 2 Days

306) Normally ___ % of human body weight is from blood? 7 – 8 %

307) How many years a Halley’s Comet takes a turn around the sun? 76

308) The moon is the ___ Satellite? Natural

309) Which satellite is used for weather forecasting? Geostationary

310) Water molecule has Hydrogen and Oxygen in a Ratio of? 2:1

311) The cucumber contains more than ___ % water? 90%

312) Pure Water boils at___℃? 100℃

313) Any solution in which water is Solvent is ___? Aqueous Solution

314) The Substance present in minor quantity? Solute

315) Heat makes the particle move Faster

316) N2 is ___? Inert

317) Combustion takes place in the presence of ___ gas? Oxygen

318) The “Cellular Respiration” is? Burning of food in cells

319) Nitrogen is present in? Soil

320) Ozone is present between___? Troposphere and Stratosphere

321) ___play an important role in keeping balance of nitrogen Soil & Atmosphere/ Bacteria

322) The Cancer Tumors are destroyed by? Liquid Nitrogen

323) Scientific Equipment is called? Apparatus

324) Chemicals are kept in? Reagent Bottles

325) The emergency medicines are kept in a? First Aid Box

326) The boiling point of Nitrogen? −196℃

327) ___ is used in Fertilizers? Nitrogen

328) Argon is a ___ Gas? Nobel

329) The Air extends up to ___ km above Earth. 600km

330) Charges in the behavior of an organism is? Stimulus

331) The reaction of an organism to a stimulus is called? Response

332) The ability of an organism to respond to a stimulus is called? Sensitivity

333) Bending of the shoot towards light is? Phototropism

334) Growth of the roots towards the soil is ___? Geotropism

335) ___ speeds up the stem growth and slows down the root growth? Auxin

336) The Food consumed is digested in? Digestive System

337) Digested food is absorbed into? Blood

338) The working together of all organs? Coordination

339) The ___ plays a vital role in body’s coordination? Brain

340) The base of the brain extends into? Spinal Cord

341) Bundles of Axons form___? A nerve

342) “Photo” means ___ & “Synthesis” ____? Light, Putting together

343) Water Carrying tubes called ___ vessels of plants? Xylem

344) The food carrying tube of plants are? Phloem

345) The Glucose made in the leaves is changed into? Starch

346) Inside a leaf, the cells that contain chlorophyll make? Carbohydrates

347) ___ is used by plants for producing energy for growth? Glucose

348) The Respiration a process which takes place ___ the time? All

349) A Barometer is used to measure the pressure of? Air

350) The Coins are made up of a mixture of? Metals

351) The Robot Spacecrafts are called? Space Probes

352) All insects have ___ legs? 6

353) The largest cell is the? Yolk of a birds Egg

354) The first Microscope was discovered by? Robert Hook

355) ___ is used to preserve human organs for transplant? Liquid Nitrogen

356) Carbon Dioxide is used in? Fizzy Drinks

357) Which gas makes most of the air Nitrogen

358) Which one of these is called Universe Solvent? Water

359) Which of the mirrors is used by Dentists? Concave

360) Which devise is use in Submarine? Periscope

361) In dressing Tables ___ Mirrors are used? Plane

362) The cells that carry out Photosynthesis are called? Palisade Cells

363) Cell division is necessary for organisms___? Growth

364) The “Organism” means? Living Things

365) Apart from hearing ear helps us to keep? Balance

366) An adult person has about ___ taste buds? 9000

367) The Human Eye can detect only? White Light

368) The cones cells on retina are sensitive to? Colored Light

369) The greatest number of skin sensors are at our ___? Finger Tips

370) The Largest organ of Human Body is? Skin

371) The Receptors re actually? Nerve Endings

372) The Respiration requires? Oxygen

373) In Rain Forest weather is always? Warm

374) ___ is a method used to separate two or more substances the are both soluble? Chromatography

375) Which element is represented by” C”? Carbon

376) Dry Ice is? Solid Carbon Dioxide

377) The Milk of lime is used in? White Wash

378) From where the fish get oxygen? Air dissolved in water

379) The energy that disappears into the environment is called? Dissipation Energy

380) ___ are the building blocks of our body? Cell

381) Anton Van discovered ___? Bacteria

382) Illuminator in microscope is used to ___ the specimen? Illuminate

383) The corner slip in microscope is placed ___ the specimen? Over

384) ___ is a jelly like substance in the cell? Cytoplasm

385) The Cell Membrane is present in___? Both Plant and animal Cells

386) Nucleus is a spherical body containing ___? Nucleolus

387) The Nucleus is surrounded by__? Nuclear Membrane

388) Nucleus contains cell’s ___ material? Genetic

389) Fluid Filled Cavities inside a cell surrounded by membrane is called ___? Vacuole

390) ___ is the power house of the cell? Mitochondria

391) ___ is usually rod-shaped or round? Mitochondria

392) The Endoplasmic Reticulum is denoted by? ER

393) ___ is responsible for the production of hormones and other secretory products? Endoplasmic Reticulum (ER)

394) Large Vacuole is present in ___ cell? Both a & b

395) ___ is a semi permeable membrane? Cell Membrane

396) Normally ___ % of human body weight is from blood? 7-8%

397) Blood transports ___ to cell? Oxygen

398) The Cell wall is present in ___ cell? Plant

399) The Chloroplast is present in ____ Cell. Plant

400) The Chloroplast contains ____? Chlorophyll

401) In photosynthesis Energy from ___ converts into Chemical Energy. Sun Light

402) The plant cell has ___ shape? Regular

403) Cells live and ___? Die

404) The average life span of a ___cell is of two Days? Stomach

405) The average life span of a brain cell is ___? Life time

406) ___ binds the body structure together and provide support? Connective Tissues

407) Tissues that form the inner lining of the blood vessels is called? Epithelial Tissues

408) ___ tissues contract and relax to bring about movement in your body? Muscle Tissues

409) Ibn Al-Nafis developed the theory of ___? Blood Circulation

410) Tissues that covers the plant part are called___? Epidermal Tissues

411) Photosynthetic tissues are rich in ___? Chlorophyll

412) The function of ___ is to transport food and water? Vascular Tissues

413) Different type of tissues groups together to form ___? Organ

414) The leaf is a___ organ? Plant

415) ___ breaks the food in to smaller parts? Digestive System

416) The ____ collects information, sends a message to brain and delivers brains response to body parts?

Nervous System417) ___ moves the body and its parts?

Muscular System418) The system is usually above the ground?

Shoot419) ___ is an underground system?

Root System420) Allah Almighty has blessed us with ___ senses?

5421) The ___ is an organ, responsible for sense od smell?

Nose422) ____ have very strong sense of smell?

Dogs423) The receptors of nose are connected with?

Olfactory Nerves424) Mucous and hair in nose can trap___?

Germs & Dust Particles 425) ___ is the sense organ for Taste?

Tongue426) ____ don’t see the color & their vision are blurred?

Dog 427) ___ have a much clearer sense of sight than Humans?

Birds428) The ear is the sense organ that helps us to sense?

Sound429) Part of Ear which we see is called?

Pinna430) The Coiled Fluid-Filled tube of the ear is called?

Cochlea431) The Thin membrane in ear is called?

Ear Drum432) Braille reading allows blind people to read using the sense of ____?

Touch433) In ear cilia produce ___ signals?

Electrical434) The nerve that connects ear to the brain is called?

Auditory Nerve435) The Human Ear can perceive sound frequencies from 16 cycles/ second to___?

28000 cycles/ second436) Dolphins can detect frequencies higher than ____ cycles/ second.

100000 cycles/ second437) The ___ lies in the socket in the skull?

Eye438) The Eye is covered with___?

Eye Lid439) Eye is the organ of___?

Vision440) In eye transparent lens focuses light upon?

Retina441) In eye cone cells are sensitive to ___?

Color442) Rod Cells are responsible for ___ vision in eye?

Peripheral 443) The Eye is connected to the brain through ___ nerves?

Optic444) The point of connection of optic nerve inside eye is called ___?

Blind Spot445) Sweat oozes out the heat from body through ___?

Skin 446) Which of the following is not the sense organ?

Hair447) Xylem & Phloem together known as ___?

Vascular Bundle448) The upper and lower surface of leaf has protective layer called?

Cuticle449) The epidermis of leaf has pores called ___?

Stomata450) Photosynthesis is a process by which plants make their ___?

Food451) The Green Plants are also Known as?

Food Factories and Producers452) The word “PHOTO” means?

Light 453) The product of photosynthesis is?

Sugar & Oxygen454) The first plant evolved more than ____ Million years ago.

500455) The process of photosynthesis depends upon?

Light Energy456) Photosynthesis provides us___ to breathe?

Oxygen457) Respiration is the process of ___ exchange.

Food 458) Product of respiration is?

CO2 + H2O459) During the Day time Photosynthesis occurs more quickly than ___?

Respiration460) Herbivores only digest ___?

Plants 461) Carnivores only digest___?

Meat462) ___ is not Omnivore?

Goat463) Everything around us is ___?

Environment 464) There are ___ components of environment?

2465) Air, Water, Soil and Temperature are ___ components of the environment?

A-Biotic466) Producers, Consumers and decomposers are ___ components of environment?

Biotic467) ___ is a place that receives very little rain fall?

Desert468) Deserts receive annual rain less than ___?

250mm469) Desert make up to ___ of earth’s surface?

1/3rd 470) There are ___ types of deserts?

2471) ___ characterized by high rainfall?

Rain Forest472) The Rain forest having annual rainfall between___?

68 – 78 inches473) Water, light and soil are ___ Factors?

Physical474) Air in rain forest is humid due to heavy ___?

Rainfall475) Biotic factors are related to ___?

Life476) Biotic and A-Biotic Factors combine to form a/an ___?

Eco-System477) Soil have same type?

No478) In Food Chain Living Things have ___ relationship?

Feeding 479) In food chain First Level includes ___?

Producers 480) Herbivores are ___?

Primary Consumers 481) ___ break down the dead organisms?

Decomposers482) ___ is an example of Decomposers?

Fungi483) “Commensal” means sharing of ___?

Food484) Mutualism is the relationship in which one organism is ___?

Harmed 485) ___ is the biggest herbivore on earth?

Elephant486) ___ is the tallest herbivore on earth?

Giraffe 487) Study of the relationship between organisms and their environment is called ___?

Ecology 488) ___ are the tiny particles of substance?

Atoms 489) Atoms are closely packed in ___?

Solids 490) Atoms are far distance from one another in ___?

Gasses 491) ___ is a substance that contains all atoms identical?

Element492) There are about ___ known elements?

118493) The symbol of Sodium is?

Na494) The symbol of Carbon?

C495) Oxygen is denoted by?

O 496) The symbol of Helium is __?

He 497) The Scientific Name for “Human Being” is?

Homo Sapiens498) The word “Homo Sapiens” was derived from?

Latin499) The word “Homo Sapiens” was introduced for the first time in?

1758500) The “Sun Flower” has about ___ species?

70501) In science, an educated guess is called a/an

Hypothesis502) If you wanted to know volume of some milk, you will use

Liters503) Which of the following is not an SI unit for measurement?

inches

504) The process of testing a hypothesis is called a/an Experiment

505) The first step in obtaining knowledge of science is a/an Observation

506) The process in which the similarities and differences between people or things are examined is called Comparing

507) Your opinion which is based on any available information is called Inferring

508) The SI units are based on Metric system

509) One meter is equal to 100 cm

510) Calipers are used to measure the Diameters

511) The SI unit for temperature is Kelvin

512) Which one of the following is not a part of an animal cell Cell wall

513) Which one of the following occupies the mostly inner space of the plant cell? Vacuole

514) The energy to the cell is provided by Mitochondria

515) The genes are carried out by Chromosomes

516) Which of the following is not a unicellular organism? Spirogyra

517) The function of stomata in plants is to Exchange gases

518) Which of the following is not a part of shoot system in plant? Branch root

519) Roots of the plant absorb A and B

520) Levels of organization in animals Cells, tissues, organ, system

521) The outermost boundary of an animal cell is called Cell membrane

522) A group of similar cells is called

Tissue523) A light microscope has ______ lenses

Two524) Nervous tissues are very ______ and long

Thin525) Cell wall is made up of

Cellulose526) Xylem tissue is made up of cells which called _____

Stomata527) The inner part of ear ___________ sends signals to the brain through auditory nerve.

Stirrup528) A blind by birth cannot see. This is associated with

Sense of sight529) Which of the following is not a part of our eye?

Cochlea530) Which organ controls our whole body

Brain

531) A group of living organisms which are of same species and are located in one place are collectively termed as population

532) Number of chemical compounds from which living organisms are made is 16

533) Relation between two populations that benefits both is known as

mutualism

534) The prey is an organism that is eaten by its

Predator

535) The natural home of an organism is known as

Habitat536) __________ makes objects fall to the ground

Gravity537) An organism is made up by different

Systems

538) Ribosome makes ___________ in cell. Protein

539) _________ cells carry messages in human body Nerve cells

540) Which of the following is present in both, plant and an animal cell Mitochondria

541) On the tip of the tongue, taste buds recognize Sweet taste

542) __________ can be detected by Human eye White light

543) Which part of the leaf has waterproof coating of wax? Upper epidermis

544) Stomata is surrounded by ________ Guard cells Two

545) Which of the following is not required as reactant in the process of photosynthesis? Oxygen

546) An animal that eats both plants and animals is called Omnivore

547) Which of the following is not a parasite Earthworm

548) Goat is __________ Herbivore

549) __________ is a biotic component of environment Specie

550) The feeding of the one organism on another is called ______________. Predation

551) Energy of a body which is due to its motion is called _________ Kinetic energy

552) The electricity which is produced by water is called _________ Hydro power

553) _________ is the percentage of an incident light that passes through a substance Transmission

554) A microscope has __________ covering lenses Two

555) Bile is produced in Liver

556) Which organ is not a part of human excretory system? Large intestine

557) __________ is the largest sensory organ in human body. Skin

558) Olfactory nerve connects _________ to the brain Nose

559) ________________ is taken from the air for photosynthesis Carbon dioxide

560) ___________ is used for distance objects. Telescope

561) Force can

speed up, slow down & stop an object

562) A greenhouse gas that absorbs energy and maintains the earth's temperature is

carbon dioxide

563) The main constituent in air is

Nitrogen

564) On Heating, a liquid will be changed into

vapor565) Breathing is a process of exchanging

Air

566) In forest range areas, the water vapor content is

higher567) The ____________ is the layer nearest to the surface of the earth.

Troposphere568) Barometer is used to measure _____________

Air pressure

569) Air is a mixture that makes up the

atmosphere570) The ___________ Layer blocks the harmful UV rays from the sun.

Ozone571) The pressure exerted by air per cubic meter is

1 Kg572) Which air makes up approximately 78% of the air?

Nitrogen573) ______________ gas is found in the air composition in very small quantity.

Argon574) Sound waves move fast in ______________

Solid575) Sound waves cannot move in _________

Vacuum576) Velocity of sound waves is least in ________

Gases

577) The speed of sound in solids is

15 times that in gas

578) A human hear cannot hear a sound of frequency less than

20 Hz

579) The __________ sounds are pleasant to our ears

Musical

580) The SI unit for measuring the intensity of sound is

W m-2

581) The remaining solid on the filter paper is known as

residue582) An element is represented in periodic table by _________

Symbol

583) The symbol for gold in the periodic table is

Au584) _____________ is mostly used in electrical equipment

Copper585) Non-metals do not reflect

Light

586) A process in which two liquids are separated through heating is called Distillation

587) Methane molecule is made up of ______ carbon and four hydrogen atoms

One588) _____________ give shiny appearance

Metals

589) _____________ substance get dissolved in the solvent

soluble590) A compound is made of two or more different __________

Element591) Metal and non-metal is common classification of ___________ in periodic table.

Elements592) Silver is an example of

Element

593) The chemical formula for common salt is

NaCl594) Kerosene fuel is mostly used in _________

Jet planes595) Which of the following is not able to conduct electricity?

Plastic596) The Latin name for Iron is _________

Ferrum

597) Hydrogen atoms do not have

Neutron598) In compound there is always the same ratio of ________

Atoms599) The amount of carbon dioxide in air is about ________

0.03%600) ______________ is the process used to separate an insoluble solid from solid-liquid

mixture. Filtration

601) Which one of the following is not a source of electrical energy?

Computer602) __________ does not convert electrical energy into light?

Oven603) Which bulb will produce more light and heat?

500 watts604) Thick wires will pass ____________ flow of current.

Higher605) When the circuit is open current will _________.

Not flow606) Electrical current can flow through

Closed circuits607) ____________ is an example of conversion of electrical energy into magnetic energy.

Electric bell608) In electric bells electric energy transform in to ____________energy.

Magnetic energy 609) ----------- is the positive terminal of an electric cell.

Metal cap 610) The tiny coiled metal wire present inside the bulb is called____________.

Filament 611) A combination of two or more electric cells is called___________.

Battery 612) An electric bulb has ____________terminals.

2 613) ----------- is an electric device which easily closes or opens an electric circuit.

Electric switch614) A material which does not allow the electricity to pass through it is___________.

Insulator 615) Non-metals like __________and __________are conductors of electricity.

Graphite and gas carbon 616) A material which allows the electricity to pass through it is ________.

conductor 617) Electric energy is produced from the____________ within the cell.

Chemicals 618) A complete electric circuit is called______________ electric circuit.

Closed 619) ----------- is an insulator.

Rubber 620) __________is a conductor.

Metal 621) The electric current in a closed circuit always flows from the ___________terminal of

the electric cell to the ______terminal. Positive to negative

622) The base of an electric cell is its ___________terminal. Negative terminal

623) The path along which electric current flows is_____________. Electric circuit

624) In _____________ electrical energy is transformed in to mechanical energy. Mixer grinder

625) ------------- is an energy which flows in an electric circuit. Electric current

626) The central _____________of an electric cell is always positive. Terminal

627) Kerosene oil is an example of_______________. Insulators

628) The cylindrical container of electric cell is made of ___________ _and acts as negative terminal. Zinc

629) The wire which carries away the current to the power house is called____________. Neutral wire

630) _____________ is a safety wire which protects us from electric shocks and electric fire. Earth wire

631) ____________ is a device which converts chemical energy in to electrical energy. Electric cell

632) An electric cell has ____________terminals. 2

633) The place where living beings live is called their ______________ Habitat

634) In Cactus plant, _____________ are reduced to spines Leaves

635) Singhara is an example of _______________ Xerophyte

636) Global warming increases the concentration of ___________ in the atmosphere Carbon dioxide

637) Science of study of living things is called ___________ Biology

638) Bacteria and fungus are examples for ____________ Decomposers

639) A microscopic plant which can move in water is _____________ Chlamydomonas

640) Plant waste given out in the form of thick fluid is called as ___________________ Latex

641) 140: Growth in living things is ____________ Permanent and irreversible

642) The process of producing energy by the breakdown of food is called ______________ Respiration

643) Minute pores present in the leaves which help in exchange of gases are called _____________ Stomata

644) The basic structural and functional units of living organisms are called as _______________ Cells

645) Hydrilla is an example for ____________ Submerged Hydrophyte

646) Living component of a habitat is called as ____________ Biotic

647) ____________ are organisms which cannot prepare their food. Heterotrophs

648) Anything which produce and response in an organism is called as ____________ Stimulus

649) An example for unicellular organism is ___________ Yeast

650) Life cycle of a living organism begins with _____________ Birth

651) Wind dispersed seeds have ____________________ Wings & hair

652) Adaptation found in palm and coconut trees is ________________ Leaves become needle shape

653) Buffaloes are often found near ponds because They cool themselves in the pond

654) A potted plant is kept in a card board box with a small slit of sun light exhibits ___________ Photographic movement

655) If we blow through lime water it turns milky. This proves that _________ Exhaled air contains carbon dioxide

656) We move our hand immediately, if we touch the hot object. In this which is stimulus. hand

657) Dolphins and whales breathe through _____________ Blowholes

658) This harmful microbe in water causes typhoid and jaundice Bacteria

659) Rain water is a kind of distilled water

660) The method used to separate a dissolved solid component from its solution Evaporation

661) A pure solid is obtained from its solution by the process of Condensation

662) Separating the insoluble suspended solids of various sizes from a liquid is called Filtration

663) The process due to which steam changes into liquid state on cooling Evaporation

664) A mixture of salt and water can be separated by Evaporation

665) A saturated solution can dissolve more of a substance on Heating

666) To evaporate a liquid into its vapor, heat the liquid Above its boiling point

667) The clear liquid obtained after filtration is called Filtrate

668) A plant with weak stem is ---- Mint

669) The part of plant which grows above the ground is ----? Shoot system

670) Stomata help in ----------------- Respiration, Photo Synthesis and Transpiration

671) The food prepared by leaves is stored as ------------------- Starch

672) Objects which emit light of their own are called ____. luminous objects

673) An inverted image is the characteristic of a ____. pin hole camera

674) Shadows are formed because ___. Light travels in a straight line

675) A greenhouse gas that absorbs energy and maintains the earth's temperature is

carbon dioxide676) In desert areas, the water vapor content is

low677) In humid areas, the water vapor content is

higher678) Living organisms get rid of waste material through ________

Excretion679) The S.I unit for length is

Meter

680) Which one is the hardest material among the following? Iron

681) The ___________ does not dissolve completely in water. Sand

682) How are sounds created? Something vibrating

683) The colorful part of the eye is known as iris

684) The skin is made up of layer of cells, these cells are dead cell

685) Ear is an organ that is concerned with hearing

686) Four types of taste buds are salty, sweet, sour and bitter

687) The number of parts in a human ear are 3

688) Taste sensations are of four types

689) Our sense of smell also helps us recognize the tastes

690) The front part of the eye is called cornea

691) Taste buds are located on tongue

692) Which planet is nearest to the earth? Mercury

693) Which is the largest planet of our solar system? Jupiter

694) ______________ is the earth observation satellite. Reconnaissance satellite

695) The first man who set foot in space was Neil Armstrong

696) A GPS satellite approximately weighs 2000 pounds

697) The upward pushing of aircraft by engine is called its thrust

698) Any man-made object sent in space to orbit around certain body is called

artificial satellite

699) Weather satellites are made to plant in regions of earth called

polar zones

700) The lightest solid on earth is

aerogel

701) For every action there is equal and opposite reaction this was Newton's

third law of motion