w. R. Thomas Middle SchoolCambridge

6th Grade ScienceSummer Packet 2014

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Name: _

Elementary School: _

Name: Class: Date: _ ID: A

Cambridge 6th Grade Science Summer Packet 2014

Multiple ChoiceIdentify the choice that best completes the statement or answers the question.

__D An experiment was conducted using rods made of different materials. A drop of wax wasplaced on each of the rods. The rod was then placed in the flame of a candle. The time it tookfor the wax to melt was recorded in the table.

Wax

Heat Conductivity of Different Materials

Rod Material Time for Wax to MeltCopper 32ssconds

Aluminum 1 minute 14 seconds- -Ire L 47 seconds

---GlaSs- --- r-3m;;~;;365&CO;;;-

Which list shows the correct order of the substances from the most to least efficient atconducting heat?

A glass, aluminum, iron, copperB copper, aluminum, iron, glassC copper, iron, aluminum, glassD aluminum, copper, glass, iron

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Name: ID: A

__ IJ The masses and volumes of four cubes are shown.

Masses and Volumes of Cubes

Cube I Mass (g) Volume (emS)

1 50 25

2 100 10-

3 125 5

4 150 10

Which cube has the greatest density?

F 1G 2H 3J 4

__D The drawing was part of a lab report turned in by a student.

Rock Sample

IT,I -mi

-leo- 90

-8070

- £0

-50- 40

- :JO

- 20- 10

-- 00- 90

- 80

70

- 60

- 50

- 40

- eo- 20

Before After

By looking at the change in the level of the water, which property of the rock sample was thestudent MOST likely measuring?

A massB densityC weightD volume

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Name: ID:A

__II Sodium bicarbonate (NaHC03) is commonly known as baking soda. Sodium bicarbonate is

a white solid that can dissolve in water. Under the proper conditions, sodium bicarbonatecan release carbon dioxide ( CO2) gas. Which of the following is NOT a physical property of

sodium bicarbonate?

F It is white.G It is a solid.H It can dissolve in water.J It releases carbon dioxide.

__II A researcher is conducting an investigation to determine if water temperature affects thegrowth rate of a certain type of fish in a lake. Which unit would the researcher use whendetermining the mass of the fish?

A centimetersB kilometersC gramsD liters

__II The weight of an object can change even when the mass stays the same. Which statementcorrectly identifies a relationship between mass and weight?

F The weight of an object depends on its mass and its volume.G Gravity affects the weight of an object but not its mass.H The mass of an object depends on its weight and size.J Magnetic fields can affect mass but not weight.

__D Ofelia was taking aluminum cans to the recycling center. She wondered how the cans wereable to be reused. After some investigating, she found out the aluminum in the can undergoeswhich type of change?

A a chemical change because the can is heatedB a physical change because a new metal is formedC a physical change because the material remains the sameD a chemical change because one can is changed into another

__II Chemical change can be identified by specific observations. Which would MOST likelyindicate a chemical change?

F Solid carbon dioxide changes directly into carbon dioxide gas.G Rock is slowly worn away by the action of wind and sand.H A mineral is crushed into fine dust and mixed with water.J A light green powder forms on the outside of a penny.

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Name: ID: A

__ IJ Jonas was making some bread. The chart shows the steps in the recipe he was using.

Steps in Bread Making, . Combine two cups of flour with sugar, salt, and yeast.

2. Heat milk, water, and butter until warm.

3. Beat 11••••0 minutes.

4. Add one egg and one cup of flour.

5. Knead (press) the dough until it is smooth.

6. Cover dough and put in a warm place so it can rise.

7. Place in a pan and bake at 325"F for 20 minutes.

In making fresh bread, which step involves a chemical change?

A combining the flour with the sugarB kneading the dough until smoothC adding an egg and a cup of flourD baking the dough in the oven

__ m The diagram shows the nuclei of some elements.

Key

Proton

Neutron

1 2 3 4

Which are nuclei of the same element?

F 1 and 2Gland 3H 2 and 4J 3 and 4

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Name: ID: A

__ m Roberto is sliding down a plastic slide on the playground. After he reaches the ground, hefeels a small electric shock when he touches a piece of metal. What has been built up on hisbody that causes the shock?

A atomsB electronsC neutronsD protons

__ CD Maria throws a ball to Thomas. The ball has kinetic energy and potential energy. The ballmakes a path through the air, as shown in the diagram.

At which labeled point on the diagram does the ball have the LEAST kinetic energy?

F 1G 2H 3.J 4

__ CD Amanda and Jake learned about kinetic and potential forms of energy within a simpleelectrical circuit. The circuit they are studying has a battery, wires, and a light bulb. Whichis a form of potential energy in the circuit?

A chemical energy in the batteryB light energy from the light bulbC heat energy lost from the electric wiresD electrical energy moving through the light bulb

__ CD Every night, Johnny reads next to a lamp. Which is the BEST indication that the transfer ofelectrical energy to the lamp is inefficient?

F The bulb gets hot.G The bulb produces light.H The lamp uses copper wires.J The lamp can be turned off at a switch.

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Name: ID: A

__ CD A plant gets the energy it needs from the Sun. The plant uses about ten percent of the energyto carry on its life functions. The plant transfers approximately another ten percent of theenergy to the consumers in a food chain. What happens to MOST of the remaining energy?

A It is reabsorbed by the Sun.B It is recycled by decomposers.c It is stored in soil for later use.D It is released into the ecosystem as heat.

__ em The diagram shows a ball rolling across the floor.

-- -- ---- ---- -- -- -- -- ---- -- -- -- -- -- ---- -----------+ 0Which graph would represent the ball if it were moving at a constant velocity in a positivedirection?

F

Time

G

Time

H

Time

J

Time

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Name: ID:A

__ CD A student pushes a shopping cart filled with groceries. The cart has a mass of 12 kilograms(kg). The student pushes the cart with a force of 15 newtons (N). Assuming the ground isfrictionless, how fast will the cart accelerate until the student stops applying the force?

A 0.625 mls2

B 0.8 mls2

c 1.25 mls2

D 2.5 mls2

__ CD Franklin wants to know how fast he runs different distances. He uses a stopwatch to measurethe time it takes him to complete a 50-meter, IOO-meter, and 200-meter race. How can hecalculate his speed for each race?

F Add the distances and the times.G Divide the distances by the times.H Multiply the distances by the times.J Subtract the distances from the times.

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Name: ID:A

__ em Mac and Janelle found a plate of cookies waiting in the center of the square kitchen tablewhen they got home. Each of them reached for the plate from opposite sides of the table.They grabbed the plate at the same time.

Mac Janelle

If Mac pulled with a force of 18 newtons (N) and Janelle pulled with a force of 20 newtons(N), which correctly describes the forces applied to the plate of cookies?

A The forces are equal and opposite in direction.B The forces applied to the plate of cookies are balanced.C The net force applied to the plate of cookies is 2 newtons (N).D The net force applied to the plate of cookies is 38 newtons (N).

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Name: ID:A

__ m A smooth card is placed over a drinking glass. A penny is placed in the middle of the card.When the card is hit with the index finger, the card moves away, and the penny drops intothe glass.

Which BEST explains why the penny does not move in the same direction as the card?

F There is an absence of friction between the penny and the card.G There is a little gravity between the card and the penny.H The card exerts too much force on the penny.J The penny has more inertia than the card.

__ m The water cycle describes the movement of the water of Earth. About 96% of the water ofEarth is the saltwater found in the oceans, while the remaining 4% is fresh water. Wherewould the majority of the fresh water on Earth be found?

A groundwater and aquifersB swamps and wetlandsC ice caps and glaciersD lakes and rivers

__ m Clay is watching the weather to prepare for a trip to the beach tomorrow. The forecastpredicts that a low-pressure system will move in overnight. Which type of weather can ClayMOST likely expect in the morning?

F foggyG sunnyH clear and colderJ cloudy and rainy

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Name: ID: A

__ m Animals can affect their habitats through activities of finding food and raising their young.Sometimes these activities have a positive effect for other organisms, creating places for themto succeed. Which is the BEST example of this type of positive effect?

A elephants stripping bark from treesB wasps laying eggs in certain caterpillarsC beavers constructing dams to make ponds for lodgesD semiaquatic rodents feeding on the roots of aquatic plants

__ m Plants can help prevent erosion or contribute to erosion. Which describes how plants couldcontribute to erosion?

F Plants slow the runoff of water and soil.G Plant roots grow in rocks, breaking the rocks.H Plant roots hold the soil in place against wind.J Plants break the impact of raindrops before they hit the soil.

__ m The circulatory system and the endocrine system work together in the human body. Whichdescribes one way in which these systems interact?

A taking in oxygen and transporting it to cells of the bodyB releasing hormones and transporting them to cells of the bodyC absorbing nutrients from food and transporting them to cells in the bodyD collecting waste products from the cells and transporting them out of the body

__II One system of the human body works along with the skeletal system by assisting movementand maintaining posture. Which system is being described?

F respiratoryG circulatoryH muscularJ digestive

__ m Cells need nutrients in order to make energy. Which system is responsible for breaking downfood to provide cellular energy?

A digestiveB excretoryC circulatoryD respiratory

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Name: ID: A

__ m The walls of an artery are thicker and more elastic than the walls of a vein.

Artery Wall

Vein Wall

Why is it important for the walls of an artery to be thicker and more elastic?

F to reduce cholesterol levels in the bloodG to resist the higher pressure from the bloodH to stop the blood from going into the capillariesJ to prevent blood from flowing backwards in the vessels

__ m As a corn plant ages, its leaves grow. Which process is directly responsible for the growth ofthese leaves?

A the division of cells in the plantB the release of oxygen from the plantC the absorption of carbon dioxide in the stemD the transportation of nutrients from the roots

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Name: ---------------------____m Two different organisms are shown.

Amoeba

ID: A

Sunflower

What is the primary way the amoeba is different from the sunflower?

F The amoeba is made of one cell.G The amoeba has limited respiration.H The amoeba can produce its own food ..J The amoeba has organs that work together to form systems.

____m The human body is made up of different levels of organization. A tissue is a group of cellsthat work together to perform a specific function. Which would be an example of a tissue inthe human body?

A stomachB plateletsC muscleD hair

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Name: ID:A

__ ED The diagram shows some structures ofthe human body.

Which is the highest level of organization shown in the diagram?

F a cellG a tissueH anorganJ a system

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Name: ID:A

__ ED Cells in the body are specialized to perform certain functions. Most cells have a certain sizeand shape related to their purpose in the body. The diagram shows one type of cell.

Based on its shape, what is the MOST likely function of this cell?

A to provide structure and supportB to carry blood throughout the bodyC to provide a cover over body tissuesD to carry impulses throughout the body

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Name: ID:A

__ m The graph shows the concentration of carbon dioxide (C02) in the atmosphere from 1957 to1996.

Carbon Dioxide Concentrations From 1957 to 19963Ga, ~...-.-..------..--.-..--------------------------------~364

e 360.2-; 356•...••.•- 352c: e8.2 348c=0'-o E 3444,) Iii 340

~ ~ 336o ,+o;io fa 332~ .s= 328e.Q 324••CISo 320

316

312 '~--~'--r~~r-~~-.--r-'--.~~r-~~~~r-~~58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88 90 92 94 96

Year

KEYVI/inter»«.

"'-----summer

Carbon dioxide is associated with climate change. Which conclusion is MOST likely based onthe data in the graph?

F Carbon dioxide levels decrease in summer and increase in winter.G The increase of carbon dioxide is due to an increase in photosynthesis.H Temperature in the summer will increase and in the winter will decrease.J Carbon dioxide increased for the last fifty years and will start to decrease.

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Name: IO:A

__ ED Reggie gathered equipment for an investigation. He will place a starch solution in a plasticbag and then place the sealed bag into a beaker containing an iodine solution. The bag willserve as a membrane through which only small particles can pass.

PlasticBag--~~·

IodineSolution ---I~ 11----...,.-

StarchSolution ----I-....•....

His hypothesis will predict which substances will move through the bag. Which informationshould he MOST likely use to develop his hypothesis?

A the results he obtains after this investigationB the amount of iodine solution in the beakerC the size of starch and iodine particlesD the type of starch solution

__ ED A drug company developed a pill to reduce cases of stomach virus. To test the medication,half of the participants got the pill with the new medicine and half got a sugar pill. Whichterm BEST identifies the participants who got a sugar pill?

F controlG experimentalH dependent variableJ independent variable

__ m Mr. Garcia's science class was studying energy and ways to cut energy costs. All of thestudents were to compare his or her electric bill for October to the one they would receive inNovember. All of the students would have a list of energy-saving tips that they would followduring November. Which would be the MOST uncontrollable factor in their investigation?

A the list of energy-saving tips to followB the outdoor temperature in Novemberc the amount of time given to the investigationD the accuracy of the October and November bills

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Name: ID:A

__ ED Sally noticed that there was a decline in the number of eggs that her hens were laying. Shedecided to investigate whether the decline might be caused by the amount of food she wasfeeding the hens, the size of the chicken cage, or the age of the hens. Which would be thedependent (responding) variable in Sally's investigation?

F number of eggs laidG size of the cageH amount of foodJ age of hens

__ ED Students conducted an investigation with green bananas. They hypothesized that an onionplaced near a banana could increase the rate at which the banana ripened. They placed oneonion and one banana in each of three containers. In a fourth container they placed abanana, but no onion. Which statement BEST explains why the onion was left out of thefourth container?

A The onion would contaminate the fourth trial.B The container without the onion is the control.C Three containers with onions are enough to conduct the test.D The container without the onion is the independent variable.

__ CD Gravity is a measurable force of attraction which acts upon objects. Which characteristicdetermines the gravity of an object?

F frictionG massH tensionJ weight

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