Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 615 · 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.🚁 Dropped from a raised hand, does a paper helicopter fall slowly or fast? (a) falls fast (b) falls slowly
2. 2.🧺 Which of these is not needed for the water rainbow? (a) a battery cell (b) a clear glass of water (c) a sheet of white paper (d) bright sunlight
3. 3.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) not needed (b) needed
4. 4.True or false: a glass marble is denser than water. (a) True (b) False
5. 5.True or false: a medicine dropper works by air pressure. (a) False (b) True
6. 6.🔍 Which is the odd one out? (a) a steel spoon (b) a feather (c) a toy parachute (d) an open sheet of paper
7. 7.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) a big bowl (b) a balloon (c) ice cubes (d) a small cup
8. 8.📘 What is water vapour? (a) tiny ice cubes (b) a kind of smoke (c) water as a gas (d) salty water
9. 9.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) sticky tape (c) a mirror (d) a magnet
10. 10.🧺 Which of these is not needed for the card-on-a-glass trick? (a) a sink or a bucket (b) a glass of water (c) yeast (d) a towel
11. 11.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same white paper is the one thing we change. (a) False (b) True
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) False (b) True
13. 13.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
14. 14.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we keep it the same (b) we change it (c) we measure it
15. 15.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a results table (c) a tub of water (d) a mirror
16. 16.🔍 Which is the odd one out? (a) a pond icing over (b) water becoming ice (c) making ice lollies (d) wet hair drying
17. 17.🔍 Which is the odd one out? (a) air (b) a pebble (c) an ice cube (d) a cork
18. 18.🛟 Why should the glass of water stand on a steady, flat place? (a) so it turns blue (b) so it gets hot (c) so it does not fall (d) so the Sun moves
19. 19.🥛 Does a suction hook work by air pressure or by magnetism? (a) air pressure (b) magnetism
20. 20.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) bright sunlight (c) a magnet (d) a clear glass of water
21. 21.🔍 Which is the odd one out? (a) a coin (b) a paper helicopter (c) a fluff of cotton (d) a toy parachute
22. 22.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) a magnet (c) a towel (d) a stiff postcard
23. 23.⚖️ 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) how full the glass is (d) whether the card stays
24. 24.⚖️ 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 tub of water (c) the shape of the clay
25. 25.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is what we measure. (a) True (b) False
26. 26.🧺 Do we need yeast for the density tower? (a) needed (b) not needed
27. 27.🎈 When does the balloon rocket stop? (a) it never stops (b) when the air runs out (c) when it gets cold (d) when it turns blue
28. 28.True or false: yeast is needed for the density tower. (a) True (b) False
29. 29.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? What do we do with “how many drops form”? (a) we measure it (b) we change it (c) we keep it the same
30. 30.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? What do we do with “the same three liquids”? (a) we measure it (b) we change it (c) we keep it the same
31. 31.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? What do we do with “the same glass”? (a) we measure it (b) we keep it the same (c) we change it
32. 32.🔍 Which is the odd one out? (a) a pebble (b) a coin (c) a ping-pong ball (d) honey
33. 33.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) the straw is heavy (c) a magnet pulls it (d) escaping air pushes it
34. 34.🌈 In VIBGYOR, what number colour is violet?
35. 35.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
36. 36.🌼 Why do the petals keep pulling water up the stem? (a) the stem is hot (b) petals are magnetic (c) petals lose water to air (d) petals like colour
37. 37.🧺 Do we need a mirror for the card-on-a-glass trick? (a) needed (b) not needed
38. 38.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
39. 39.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? True or false: the length of the blades is the one thing we change. (a) True (b) False
40. 40.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? Which of these is kept the same? (a) whether the card stays (b) how full the glass is (c) the same card

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