Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 410 · 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.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) sticky tape (c) two chairs (d) yeast
2. 2.🛟 Which of these sinks in water? (a) a ping-pong ball (b) a glass marble (c) a feather (d) a piece of thermocol
3. 3.🧺 Do we need yeast for the water cycle bowl? (a) not needed (b) needed
4. 4.True or false: a battery cell is needed for the water cycle bowl. (a) True (b) False
5. 5.True or false: a balloon is not needed for the card-on-a-glass trick. (a) True (b) False
6. 6.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? What do we do with “the way we turn it”? (a) we measure it (b) we change it (c) we keep it the same
7. 7.🚁 Which of these falls fast through the air? (a) a paper helicopter (b) a toy parachute (c) a feather (d) a glass marble
8. 8.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) the tub of water (b) whether it floats (c) the amount of clay (d) the shape of the clay
9. 9.🍯 Is honey denser or less dense than water? (a) denser than water (b) less dense than water
10. 10.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) some stays undissolved (c) all of it dissolves (d) the sugar turns to salt
11. 11.🌈 In VIBGYOR, what number colour is green?
12. 12.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) two clear glasses (c) a comb (d) a clock or timer
13. 13.🚀 Which of these goes forward? (a) water a swimmer pushes (b) the balloon (c) air from the balloon (d) water from the oars
14. 14.True or false: a balloon is needed for the card-on-a-glass trick. (a) True (b) False
15. 15.💧 Which of these is freezing? (a) sweat drying on skin (b) wet hair drying (c) a puddle drying up (d) water becoming ice
16. 16.🚁 Dropped from a raised hand, does a feather fall slowly or fast? (a) falls slowly (b) falls fast
17. 17.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
18. 18.True or false: yeast is needed for the density tower. (a) False (b) True
19. 19.🚁 Why does the paper helicopter fall slowly? (a) the floor pushes it (b) air pushes on its blades (c) a magnet holds it (d) it has no weight
20. 20.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a mirror (c) a magnet (d) a drinking straw
21. 21.🚁 Dropped from a raised hand, does a paper helicopter fall slowly or fast? (a) falls slowly (b) falls fast
22. 22.True or false: a battery cell is not needed for the paper helicopter. (a) True (b) False
23. 23.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) a sunny window (c) a clear glass of water (d) a magnet
24. 24.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a shadow of ice (b) a small rainbow (c) snow falling (d) a magnet
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) yeast (c) sticky tape (d) a long string
26. 26.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
27. 27.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? Which of these is what we measure? (a) the way we turn it (b) the same glass (c) whether the card stays (d) how full the glass is
28. 28.🧺 Do we need water with food colour for the density tower? (a) not needed (b) needed
29. 29.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) faster (c) the same (d) not at all
30. 30.True or false: a small cup is not needed for the water cycle bowl. (a) False (b) True
31. 31.📘 What do we call water with sugar dissolved in it? (a) a solution (b) a crystal (c) a rainbow (d) a magnet
32. 32.🚁 Dropped from a raised hand, does a stone fall slowly or fast? (a) falls fast (b) falls slowly
33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of sugar (b) the amount of water (c) the kind of sugar (d) time to dissolve
34. 34.True or false: a sunny window is not needed for the water rainbow. (a) True (b) False
35. 35.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: the order of pouring is kept the same. (a) True (b) False
36. 36.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) whether it floats (b) the amount of clay (c) the kind of clay (d) the tub of water
37. 37.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? Which of these is what we measure? (a) time to reach the floor (b) the kind of paper (c) the drop height (d) the length of the blades
38. 38.💧 Which of these lets water climb up it? (a) a steel spoon (b) a plastic ruler (c) a piece of chalk (d) a rubber eraser
39. 39.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? Which of these is the one thing we change? (a) the time we wait (b) the size of the bowl (c) sun or shade (d) the amount of water
40. 40.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) whether it floats (b) the kind of clay (c) the shape of the clay

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