Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 723 · 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.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is kept the same. (a) False (b) True
2. 2.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a magnet (c) small test objects (d) a mirror
3. 3.🚁 Why does the paper helicopter fall slowly? (a) it has no weight (b) a magnet holds it (c) air pushes on its blades (d) the floor pushes it
4. 4.🧺 Do we need a small cup for the water cycle bowl? (a) needed (b) not needed
5. 5.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
6. 6.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) turmeric powder (c) a tub of water (d) small test objects
7. 7.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
8. 8.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of sugar (b) time to dissolve (c) the water temperature
9. 9.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
10. 10.True or false: a glass marble falls fast through the air. (a) False (b) True
11. 11.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
12. 12.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? Which of these is kept the same? (a) how many drops form (b) the time we wait (c) sun or shade
13. 13.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? Which of these is kept the same? (a) the kind of paper (b) time to reach the floor (c) the length of the blades
14. 14.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a rainbow (c) a solution (d) a crystal
15. 15.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
16. 16.🛟 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
17. 17.True or false: a ping-pong ball sinks in water. (a) False (b) True
18. 18.True or false: a battery cell is not needed for the card-on-a-glass trick. (a) False (b) True
19. 19.📘 What is water vapour? (a) water as a gas (b) salty water (c) a kind of smoke (d) tiny ice cubes
20. 20.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? What do we do with “the amount of water”? (a) we keep it the same (b) we measure it (c) we change it
21. 21.🧺 Three of these are needed for the paper helicopter. Which one is NOT needed? (a) a magnet (b) a strip of paper (c) a ruler (d) safety scissors
22. 22.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a glass marble (c) a feather (d) a dry leaf
23. 23.⚖️ 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 the one thing we change. (a) True (b) False
24. 24.🧺 Which of these is needed for the paper helicopter? (a) a balloon (b) a mirror (c) yeast (d) a paper clip
25. 25.🛟 Which scissors should children use to cut the paper? (a) gardening shears (b) sharp kitchen shears (c) a paper cutter (d) safety scissors
26. 26.🔍 Which is the odd one out? (a) baking soda (b) table salt (c) glucose powder (d) sawdust
27. 27.True or false: a mirror is needed for the balloon rocket. (a) False (b) True
28. 28.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
29. 29.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) a spoon (c) honey (d) a magnet
30. 30.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
31. 31.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the tub of water”? (a) we change it (b) we measure it (c) we keep it the same
32. 32.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is the one thing we change. (a) False (b) True
33. 33.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is very cold (c) ice is magnetic (d) ice is less dense
34. 34.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
35. 35.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) a magnet (c) a balloon (d) food colour
36. 36.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
37. 37.🧺 Three of these are needed for the paper helicopter. Which one is NOT needed? (a) a paper clip (b) a strip of paper (c) safety scissors (d) a balloon
38. 38.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) cooking oil (c) a tall clear glass (d) turmeric powder
39. 39.🛟 Which of these floats on water? (a) a feather (b) a pebble (c) a steel spoon (d) an iron nail
40. 40.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is what we measure. (a) False (b) True

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