Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 963 · 40 questions

What you do (Find the experiment, use the idea): 1. Read the question and find its experiment. 2. Use that experiment’s idea — density, dissolving, capillary action, light bending, air pressure, push-back, air resistance or condensation. 3. For a fair-test question, find what is changed, kept the same and measured. 4. For a safety question, choose what keeps everyone safe.

1. 1.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) cling film (b) water (c) a battery cell (d) a big bowl
2. 2.True or false: yeast is needed for the water rainbow. (a) True (b) False
3. 3.🛟 Which rule keeps the density tower experiment safe? (a) do not lick the spoon (b) throw the glass (c) pour it on the floor (d) taste each layer
4. 4.💧 Which of these is freezing? (a) dew on morning grass (b) a pond icing over (c) wet hair drying (d) drops under a pot lid
5. 5.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: the same three liquids is kept the same. (a) False (b) True
6. 6.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
7. 7.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) yeast (c) a balloon (d) two chairs
8. 8.True or false: a glass marble falls fast through the air. (a) False (b) True
9. 9.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? Which of these is the one thing we change? (a) the order of the layers (b) the order of pouring (c) the same glass (d) the same three liquids
10. 10.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is kept the same. (a) True (b) False
11. 11.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) a magnet pulls it (c) the straw is heavy (d) the string pulls it
12. 12.True or false: a clear glass of water is not needed for the water rainbow. (a) True (b) False
13. 13.True or false: water a swimmer pushes goes forward. (a) False (b) True
14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we keep it the same (b) we change it (c) we measure it
15. 15.🍯 Is very salty water denser or less dense than water? (a) denser than water (b) less dense than water
16. 16.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) yeast (c) a clear glass of water (d) a battery cell
17. 17.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) yeast (b) honey (c) cooking oil (d) a spoon
18. 18.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
19. 19.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) a mirror (c) a clear glass of water (d) a sunny window
20. 20.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: how much of each liquid is kept the same. (a) False (b) True
21. 21.True or false: a piece of thermocol floats on water. (a) False (b) True
22. 22.🧺 Which of these is not needed for the density tower? (a) a spoon (b) cooking oil (c) turmeric powder (d) a tall clear glass
23. 23.True or false: a suction hook works by magnetism. (a) True (b) False
24. 24.True or false: turmeric powder is needed for the card-on-a-glass trick. (a) False (b) True
25. 25.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a mirror (c) a fridge magnet (d) a balloon rocket
26. 26.🛟 Why should we wipe up spilled oil at once? (a) spilled oil is slippery (b) oil turns into honey (c) oil attracts magnets (d) oil makes it rain
27. 27.True or false: yeast is needed for the coloured flower experiment. (a) True (b) False
28. 28.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a magnet (b) cooking oil (c) water with food colour (d) a spoon
29. 29.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? Which of these is the one thing we change? (a) the same card (b) how full the glass is (c) whether the card stays (d) the same glass
30. 30.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) a big bowl (b) a mirror (c) sunlight (d) a small cup
31. 31.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? True or false: the cling film cover is kept the same. (a) False (b) True
32. 32.💧 Which of these is condensation? (a) drops on a cold glass (b) ice becoming water (c) a puddle drying up (d) wet hair drying
33. 33.🛟 Which of these sinks in water? (a) a glass marble (b) a feather (c) an ice cube (d) an empty capped bottle
34. 34.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: the same glass is the one thing we change. (a) True (b) False
35. 35.🌼 Why do the petals keep pulling water up the stem? (a) petals are magnetic (b) petals lose water to air (c) petals like colour (d) the stem is hot
36. 36.🍯 Which of these is less dense than water? (a) a coin (b) a cork (c) a glass marble (d) honey
37. 37.🧺 Which of these is needed for the density tower? (a) a spoon (b) turmeric powder (c) a battery cell (d) a mirror
38. 38.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it sinks (c) it melts (d) it floats higher
39. 39.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a magnet (c) sticky tape (d) yeast
40. 40.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) small test objects (c) a results table (d) a magnet

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