Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 747 · 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.🧺 Do we need yeast for the card-on-a-glass trick? (a) needed (b) not needed
2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we change it (b) we keep it the same (c) we measure it
3. 3.🍯 Which of these is less dense than water? (a) a coin (b) very salty water (c) a ping-pong ball (d) honey
4. 4.True or false: turmeric powder is needed for the water rainbow. (a) True (b) False
5. 5.💧 Which change is this: wet clothes drying? (a) freezing (b) evaporation (c) melting (d) condensation
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 the one thing we change? (a) the same glass (b) the order of pouring (c) how much of each liquid (d) the same three liquids
7. 7.🧺 Which of these is not needed for the water cycle bowl? (a) ice cubes (b) water (c) a battery cell (d) a small cup
8. 8.🚀 Which of these goes backward? (a) the rowing boat (b) the balloon (c) water a swimmer pushes (d) the rocket
9. 9.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
10. 10.🌈 In VIBGYOR, what number colour is violet?
11. 11.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) some stays undissolved (c) the sugar turns to salt (d) all of it dissolves
12. 12.🧺 Do we need yeast for the water rainbow? (a) not needed (b) needed
13. 13.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
14. 14.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
15. 15.🛟 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
16. 16.🧺 Do we need a ruler for the paper helicopter? (a) needed (b) not needed
17. 17.🧺 Do we need sunlight for the water cycle bowl? (a) not needed (b) needed
18. 18.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
19. 19.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a solution (c) a rainbow (d) a crystal
20. 20.⚖️ 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) True (b) False
21. 21.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
22. 22.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? True or false: the paper clip is what we measure. (a) False (b) True
23. 23.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the amount of water”? (a) we measure it (b) we change it (c) we keep it the same
24. 24.True or false: sunlight is needed for the water cycle bowl. (a) False (b) True
25. 25.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a magnet (c) sugar (d) a clock or timer
26. 26.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) neither of them (c) the sugar cube (d) powdered sugar
27. 27.📘 Air presses on everything around us. What is this push called? (a) magnetism (b) sunlight (c) air pressure (d) friction
28. 28.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: time for colour to show is what we measure. (a) True (b) False
29. 29.🥄 Which of these dissolves in water? (a) sugar (b) sand (c) cooking oil (d) small pebbles
30. 30.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a grown-up (c) a pet (d) a toddler
31. 31.🛟 What should you do after handling food colour? (a) lick your fingers (b) rub your eyes (c) wipe them on walls (d) wash your hands
32. 32.True or false: a strip of paper is not needed for the paper helicopter. (a) False (b) True
33. 33.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the kind of flower”? (a) we measure it (b) we keep it the same (c) we change it
34. 34.🧺 Three of these are needed for the paper helicopter. Which one is NOT needed? (a) a mirror (b) a paper clip (c) a ruler (d) a pencil
35. 35.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) a mirror (b) a small cup (c) ice cubes (d) a big bowl
36. 36.⚖️ 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 same glass”? (a) we measure it (b) we keep it the same (c) we change it
37. 37.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? Which of these is the one thing we change? (a) the length of the stem (b) time for colour to show (c) the room it stands in (d) the amount of water
38. 38.True or false: a piece of chalk lets water climb up it. (a) True (b) False
39. 39.🚁 Dropped from a raised hand, does a paper helicopter fall slowly or fast? (a) falls fast (b) falls slowly
40. 40.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a battery cell (c) yeast (d) sticky tape

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