science pp3 -ppt
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Science Practice Paper 3
Balance Activity
Solid, Liquid Or Gas?Game 1Q2
Q1 (1)
(2)
Q3 (2)
Solid, Liquid or Gas? Game 2
Q4 (4)
Q5 (3)
Solids, Liquids and Gases are matter. All matter have mass and occupy space.
Liquids changes its shape according to the container. It also cannot be compressed.
Air does not have a definite volume. No matter how much air is pumped in, it takes the volume of the ball which is 250 cm3.
Q8Q7 (1)
(4)
Q9 (4)
Q10 (1)
Q11 (2)
Watch : Growth of A seedlingThe seed coat protects the seed.
A fair test : one with mineral salts and the other without. The rest are the same.
Seeds need water, warmth and food to germinate.
Q6 (4) Video: Water takes up the space occupied by air
Not all plants reproduce from seeds. Some plants reproduce from plant parts such as stems, leaves and even roots.
Watch : Conditions for Seed Germination
View : Table of Germinating times Of Seeds
Germination Table
Seed Germinating Time
Broccoli 6 -10 days
Cabbage 6- 10 days
Carrots 10 - 21 days
Cauliflower 6 - 10 days
Celery 10 -14 days
Cucumber 7 - 10 days
Parsnip 21-28 days
Radish 5 - 8 days
Sweet Corn 6 - 10 days
Tomato 10 -14 days
Onions 10 - 14 days
Peas 7 - 10 days
Parsnip
Radish
Q14
Q13 (4)
(2)
Q15 (2)
(2)Q16
View : Close up of Leaf Veins
Living things need food, water and air to survive.
Q12 (3)Quiz Time?
Roots don’t absorb oxygen! Stems, not flowers, hold up the leaves.
Video : Plant Parts and Functions
View : How Grass prevents Soil Erosion
Q19
Q18 (4)
(1)
Q20 (1)
Q17 (4)Only Plants can make their own food.View : Clay is a natural resource
An apple is light, smooth and round.
Outer casing of mobile phone should be strong light, waterproof and hard.
Q23
Q22 (2)
(4)
Q21 (2) Plastic is waterproof and durable (does not tear easily. It can also be easily folded (styrofoam cannot)
View : Life Cycle of A Butterfly
Q25 (4)
Q24 (2) A B C
1 dog ✔ moth ✘ bird ✔
2 horse ✔ frog ✔ cockroach ✔
3 shark ✔ toad ✔ crocodile ✔
4 guppy ✔dragonfly ✔
squirrel ✘
(4)
Tadpole does not resemble frog.
Tadpole breathes with gills, but frog breathes with lungs.
All life starts from fertilised eggs.
Q26 (4) Windpipe is part of the respiratory system
Q29
Q28 (2)
Q27 (2) Skeletal system gives the body shape and protects the inner organs.
Blood vessels are tubes which transport blood, water, oxygen, food, etc in the body.
A B C D
1 food ✔ water ✔carbon
dioxide ✘nutrients ✘
2water ✔
oxygen ✔
nutrients ✔
wastes ✔
3oxygen ✔
carbon dioxide
✘food ✔ water ✔
4 wastes ✘ food ✔ water ✔carbon dioxide
✔
(3)
Q30 (4) When a person is swimming, he needs to breathe. His heart pumps more blood and his arm muscles work hard to move through the water.
Q32.
Q33.
Q34.
(a) Alex (b) The mass remains the same
i) Air can be compressed.ii)Air has no definite shape
Q31.A : electricityB : Ball (definite shape)C : Tea (no definite shape)D : Wind (cannot be seen)
Q36.
Q37.
(A) leaf (B) roots (i) Part A makes food for the plant.(ii) Part B absorbs water from the ground
Q35. (a) The aim is to find out if the amount of water given to seeds affect the amount of time taken for it to germinate(b) The roots would appear first
food carrying tubes
(phloem)water carrying
tubes (xylem)
(b) To all parts of the plant
Q39.
Q40.
(a) pupa, nymph(b) The butterfly has 4 stages in its life cycle but the cockroach has 3 stages.
Q38. B ( gullet) C (stomach)E : (small intestine)F : (anus)
F (tadpole breathes through gills)T F (Frog’s eggs don’t need to be kept warm)T
Q42a.
Q42b.
(i) plant(ii) fungi
Q41. A : Man-made/Synthetic B : AnimalsC : Wood/Rubber/Cotton/Latex/PaperD : Plastic/Glass/Rayon
The living things in Group X can make their own food but the living things in the other groups cannot.