Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 157 · 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 works by magnetism? (a) a magnetic chess set (b) a bicycle pump (c) a medicine dropper (d) a vacuum cleaner
2. 2.💧 What happens to water vapour when it touches the cold cling film? (a) it turns to smoke (b) it turns to salt (c) it turns to drops (d) it disappears
3. 3.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a glass of water (c) a magnet (d) a few hours of waiting
4. 4.⚖️ 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) False (b) True
5. 5.⚖️ 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) the same card (b) the way we turn it (c) how full the glass is (d) whether the card stays
6. 6.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the shape of the clay (b) whether it floats (c) the amount of clay (d) the tub of water
7. 7.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the amount of clay (b) the shape of the clay (c) whether it floats
8. 8.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
9. 9.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? Which of these is kept the same? (a) the order of pouring (b) the order of the layers (c) the same three liquids
10. 10.True or false: yeast is not needed for the paper helicopter. (a) True (b) False
11. 11.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) chew them (c) give them to a baby (d) throw them away safely
12. 12.🧺 Do we need yeast for the water rainbow? (a) not needed (b) needed
13. 13.📘 What do we call light bending as it passes from air into water? (a) refraction (b) evaporation (c) reflection (d) magnetism
14. 14.⚖️ 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 amount of water (b) the size of the bowl (c) sun or shade (d) the cling film cover
15. 15.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a balloon (b) a sheet of white paper (c) a sunny window (d) bright sunlight
16. 16.🛟 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
17. 17.🧺 Which of these is needed for the water cycle bowl? (a) a balloon (b) yeast (c) a mirror (d) water
18. 18.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a towel for spills (c) turmeric powder (d) a results table
19. 19.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it turns into a kite (c) it can pop loudly (d) it gets too heavy
20. 20.🛟 What should you do with wet floors after the experiment? (a) slide on them (b) leave them wet (c) pour more water (d) wipe them dry
21. 21.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) two clear glasses (c) cold water (d) a magnet
22. 22.🧺 Do we need a battery cell for the water rainbow? (a) needed (b) not needed
23. 23.True or false: a mirror is not needed for the water rainbow. (a) True (b) False
24. 24.True or false: a mirror is needed for the balloon rocket. (a) False (b) True
25. 25.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
26. 26.🧺 Which of these is needed for the density tower? (a) a balloon (b) a mirror (c) honey (d) a magnet
27. 27.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) a sheet of white paper (c) bright sunlight (d) turmeric powder
28. 28.🔍 Which is the odd one out? (a) an open sheet of paper (b) a paper helicopter (c) a steel spoon (d) a feather
29. 29.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) vinegar (c) yeast (d) two chairs
30. 30.🧺 Which of these is not needed for the float-or-sink test? (a) a magnet (b) a tub of water (c) small test objects (d) a towel for spills
31. 31.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
32. 32.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) faster (c) slower (d) the same
33. 33.💧 Which of these is melting? (a) water becoming ice (b) drops under a pot lid (c) a puddle drying up (d) ice becoming water
34. 34.🚁 Which of these falls fast through the air? (a) a toy parachute (b) a fluff of cotton (c) a crumpled paper ball (d) a paper helicopter
35. 35.True or false: dew on morning grass is condensation. (a) False (b) True
36. 36.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: how much of each liquid is the one thing we change. (a) False (b) True
37. 37.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) honey (c) a teaspoon (d) a balloon
38. 38.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) small test objects (c) a balloon (d) a results table
39. 39.True or false: a big bowl is needed for the water cycle bowl. (a) False (b) True
40. 40.🔍 Which is the odd one out? (a) a flower stem (b) a cotton thread (c) a paper towel (d) a glass marble

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