Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 758 · 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 needed for the card-on-a-glass trick? (a) turmeric powder (b) a battery cell (c) a stiff postcard (d) yeast
2. 2.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? What do we do with “how full the glass is”? (a) we change it (b) we keep it the same (c) we measure it
3. 3.📘 What is it called when water climbs up thin tubes or paper by itself? (a) magnetism (b) evaporation (c) melting (d) capillary action
4. 4.🔮 Predict: you blow up a balloon. What fills it? (a) smoke (b) air (c) sand (d) water
5. 5.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
6. 6.🚀 Which of these goes backward? (a) the rocket (b) water from the oars (c) the swimmer (d) the balloon
7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we keep it the same (b) we change it (c) we measure it
8. 8.🌊 What pushes a floating cork upward? (a) the tub (b) the air above (c) the cork itself (d) the water
9. 9.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is kept the same. (a) False (b) True
10. 10.🌼 How does coloured water reach the petals? (a) it is sprayed on (b) through tiny stem tubes (c) it rains on them (d) through the air
11. 11.🛟 Which of these sinks in water? (a) a ping-pong ball (b) an ice cube (c) a cork (d) a ball of clay
12. 12.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
13. 13.⚖️ 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 measure it (c) we change it
14. 14.🧺 Three of these are needed for the paper helicopter. Which one is NOT needed? (a) a strip of paper (b) a balloon (c) a ruler (d) safety scissors
15. 15.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) small test objects (c) a towel for spills (d) turmeric powder
16. 16.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a clock or timer (c) a magnet (d) two clear glasses
17. 17.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the length of the stem”? (a) we change it (b) we keep it the same (c) we measure it
18. 18.🌈 Why does sunlight make a rainbow through a glass of water? (a) the paper makes colours (b) the water is coloured (c) water splits the light (d) the glass is painted
19. 19.🥄 Which of these dissolves in water? (a) glucose powder (b) chalk powder (c) sawdust (d) cooking oil
20. 20.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the time of day is the one thing we change. (a) False (b) True
21. 21.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) honey (c) sugar (d) a teaspoon
22. 22.True or false: a balloon is needed for the water cycle bowl. (a) True (b) False
23. 23.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same glass is kept the same. (a) False (b) True
24. 24.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) food colour (c) a battery cell (d) turmeric powder
25. 25.⚖️ 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) whether the card stays (b) the way we turn it (c) how full the glass is (d) the same card
26. 26.True or false: a glass marble lets water climb up it. (a) True (b) False
27. 27.🥛 Which of these works by air pressure? (a) a magnetic chess set (b) a magnetic pin holder (c) a vacuum cleaner (d) a fridge magnet
28. 28.💧 Which of these is condensation? (a) sweat drying on skin (b) butter going runny (c) wet hair drying (d) drops on a cold glass
29. 29.🧺 Which of these is needed for the water cycle bowl? (a) a magnet (b) a balloon (c) water (d) a mirror
30. 30.🧺 Do we need a battery cell for the paper helicopter? (a) needed (b) not needed
31. 31.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
32. 32.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to hide the corks (c) to splash everyone (d) to keep children safe
33. 33.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) water with food colour (c) turmeric powder (d) cooking oil
34. 34.🍯 Which of these is denser than water? (a) an ice cube (b) cooking oil (c) a coin (d) a ping-pong ball
35. 35.🛟 What should you do after handling food colour? (a) rub your eyes (b) wipe them on walls (c) lick your fingers (d) wash your hands
36. 36.True or false: a spoon is not needed for the density tower. (a) False (b) True
37. 37.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a balloon (b) a spoon (c) water with food colour (d) a tall clear glass
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same tape (b) the same straw (c) distance it travels (d) how big we blow it
39. 39.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? True or false: the length of the blades is kept the same. (a) True (b) False
40. 40.🧺 Three of these are needed for the paper helicopter. Which one is NOT needed? (a) a pencil (b) a paper clip (c) a ruler (d) turmeric powder

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