Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 107 · 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 the card stay on with a full glass and with a half-full glass? What do we do with “whether the card stays”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.True or false: water with food colour is needed for the density tower. (a) False (b) True
3. 3.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) a magnet (b) water (c) a small cup (d) ice cubes
4. 4.🌼 Why do the petals keep pulling water up the stem? (a) petals are magnetic (b) the stem is hot (c) petals lose water to air (d) petals like colour
5. 5.True or false: a balloon is not needed for the water rainbow. (a) True (b) False
6. 6.⚖️ 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 measure it (b) we change it (c) we keep it the same
7. 7.🧺 Three of these are needed for the paper helicopter. Which one is NOT needed? (a) a ruler (b) safety scissors (c) a strip of paper (d) turmeric powder
8. 8.True or false: a coin is denser than water. (a) False (b) True
9. 9.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the room it stands in”? (a) we change it (b) we measure it (c) we keep it the same
10. 10.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) neither of them (c) the small pebble (d) both of them
11. 11.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a balloon (c) a mirror (d) small test objects
12. 12.🧺 Which of these is not needed for the water cycle bowl? (a) sunlight (b) cling film (c) a big bowl (d) a magnet
13. 13.📘 What is it called when water climbs up thin tubes or paper by itself? (a) evaporation (b) capillary action (c) magnetism (d) melting
14. 14.⚖️ 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 change it (b) we measure it (c) we keep it the same
15. 15.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) sugar (c) warm water (d) a magnet
16. 16.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? True or false: sun or shade is kept the same. (a) True (b) False
17. 17.True or false: sugar stirred well dissolves slower. (a) False (b) True
18. 18.🔍 Which is the odd one out? (a) a glass marble (b) a paper helicopter (c) a feather (d) a toy parachute
19. 19.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
20. 20.🧺 Which of these is needed for the density tower? (a) a magnet (b) a spoon (c) turmeric powder (d) yeast
21. 21.🍯 Is a pebble denser or less dense than water? (a) less dense than water (b) denser than water
22. 22.🍯 Which of these is denser than water? (a) a coin (b) air (c) an ice cube (d) a cork
23. 23.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a balloon (c) vinegar (d) two chairs
24. 24.🌊 What pushes a floating cork upward? (a) the air above (b) the cork itself (c) the tub (d) the water
25. 25.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? Which of these is what we measure? (a) sun or shade (b) the cling film cover (c) the time we wait (d) how many drops form
26. 26.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the straw is heavy (c) escaping air pushes it (d) the string pulls it
27. 27.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) honey (c) a mirror (d) a spoon
28. 28.True or false: a ping-pong ball is less dense than water. (a) False (b) True
29. 29.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) water (b) a big bowl (c) sunlight (d) turmeric powder
30. 30.🛟 Where should you do the card-and-glass trick? (a) on a bed (b) over a sink or bucket (c) over a laptop (d) near a plug point
31. 31.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) clouds (b) magnets (c) balloons (d) prisms
32. 32.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) a big bowl (b) a battery cell (c) water (d) sunlight
33. 33.🛟 Does a cork float or sink in water? (a) floats (b) sinks
34. 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) two chairs (c) sticky tape (d) vinegar
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 same three liquids is kept the same. (a) True (b) False
36. 36.True or false: a magnet is needed for the card-on-a-glass trick. (a) False (b) True
37. 37.⚖️ 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) False (b) True
38. 38.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) a few ice cubes (c) lots of salt stirred in (d) more plain water
39. 39.⚖️ 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 order of pouring”? (a) we measure it (b) we change it (c) we keep it the same
40. 40.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) yeast (c) a few hours of waiting (d) a mirror

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