Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 4 · 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 — do the layers end up in the same order if we pour the liquids in a different order? What do we do with “how much of each liquid”? (a) we keep it the same (b) we change it (c) we measure it
2. 2.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? What do we do with “the same card”? (a) we keep it the same (b) we change it (c) we measure it
3. 3.⚖️ 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
4. 4.True or false: a drinking straw works by magnetism. (a) False (b) True
5. 5.True or false: a piece of thermocol sinks in water. (a) False (b) True
6. 6.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? Which of these is what we measure? (a) the same three liquids (b) the same glass (c) the order of the layers (d) the order of pouring
7. 7.🥛 Which of these works by magnetism? (a) a drinking straw (b) a suction hook (c) a magnetic pin holder (d) a medicine dropper
8. 8.True or false: water is not needed for the water cycle bowl. (a) True (b) False
9. 9.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a clock or timer (c) a magnet (d) two clear glasses
10. 10.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a battery cell (c) a towel for spills (d) a tub of water
11. 11.🔮 Predict: you add two more paper clips. How does it fall? (a) faster (b) it stops in the air (c) slower (d) it floats up
12. 12.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? True or false: sun or shade is the one thing we change. (a) False (b) True
13. 13.🌈 How many colours do we name in a rainbow (VIBGYOR)?
14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we keep it the same (c) we measure it
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) how big we blow it (b) distance it travels (c) the same string
16. 16.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? Which of these is the one thing we change? (a) the length of the blades (b) the drop height (c) the person dropping (d) the kind of paper
17. 17.📘 What is it called when water climbs up thin tubes or paper by itself? (a) melting (b) magnetism (c) capillary action (d) evaporation
18. 18.🚁 Dropped from a raised hand, does a feather fall slowly or fast? (a) falls slowly (b) falls fast
19. 19.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
20. 20.🔍 Which is the odd one out? (a) glucose powder (b) cooking oil (c) sugar (d) table salt
21. 21.⚖️ 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 same card (c) how full the glass is (d) the same glass
22. 22.🧺 Which of these is needed for the card-on-a-glass trick? (a) a mirror (b) a sink or a bucket (c) turmeric powder (d) a balloon
23. 23.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
24. 24.🔍 Which is the odd one out? (a) a piece of thermocol (b) a metal key (c) an empty capped bottle (d) a feather
25. 25.🥛 Which of these works by magnetism? (a) a fridge magnet (b) a suction hook (c) a bicycle pump (d) a drinking straw
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) True (b) False
27. 27.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a towel (b) a sink or a bucket (c) a glass of water (d) a mirror
28. 28.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
29. 29.True or false: a cork sinks in water. (a) True (b) False
30. 30.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) leave water on the floor (c) run around the tub (d) wipe up spills at once
31. 31.True or false: a paper clip is not needed for the paper helicopter. (a) False (b) True
32. 32.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) a spoon (c) turmeric powder (d) water with food colour
33. 33.💧 Which of these is freezing? (a) wet clothes drying (b) water becoming ice (c) wet hair drying (d) a puddle drying up
34. 34.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) the sugar turns to salt (c) some stays undissolved (d) the water turns solid
35. 35.📘 What pulls the paper helicopter down to the floor? (a) magnetism (b) the wind (c) air pressure (d) gravity
36. 36.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) a battery cell (b) a big bowl (c) cling film (d) ice cubes
37. 37.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we change it (b) we keep it the same (c) we measure it
39. 39.🧺 Do we need yeast for the paper helicopter? (a) needed (b) not needed
40. 40.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a long string (c) a drinking straw (d) a mirror

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