Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 677 · 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 change is this: dew on morning grass? (a) melting (b) condensation (c) evaporation (d) freezing
2. 2.🧺 Do we need a big bowl for the water cycle bowl? (a) not needed (b) needed
3. 3.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it can pop loudly (c) it gets too heavy (d) it turns into a kite
4. 4.🎈 What is the job of the straw on the string? (a) it blows air in (b) it makes it heavier (c) it holds water (d) it guides the balloon
5. 5.⚖️ 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 three liquids”? (a) we keep it the same (b) we change it (c) we measure it
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) sticky tape (c) two chairs (d) a drinking straw
7. 7.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) the sugar cube (c) neither of them (d) powdered sugar
8. 8.🛟 Why should we wipe up spilled oil at once? (a) oil turns into honey (b) oil attracts magnets (c) oil makes it rain (d) spilled oil is slippery
9. 9.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we measure it (b) we keep it the same (c) we change it
10. 10.🥛 Which of these works by magnetism? (a) a magnetic chess set (b) a medicine dropper (c) a suction hook (d) a drinking straw
11. 11.⚖️ 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 order of pouring (b) the order of the layers (c) the same three liquids (d) how much of each liquid
12. 12.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
13. 13.🧺 Do we need a balloon for the card-on-a-glass trick? (a) not needed (b) needed
14. 14.🧺 Do we need yeast for the water cycle bowl? (a) not needed (b) needed
15. 15.🛟 Which of these sinks in water? (a) a cork (b) a glass marble (c) an ice-cream stick (d) a dry leaf
16. 16.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) sugar in icy water (d) sugar in warm water
17. 17.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a tub of water (c) small test objects (d) a battery cell
18. 18.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a tall clear glass (c) a magnet (d) honey
19. 19.🧺 Which of these is needed for the water cycle bowl? (a) a battery cell (b) turmeric powder (c) a magnet (d) ice cubes
20. 20.🥤 Why does juice go up a drinking straw when you sip? (a) air pushes it up (b) juice likes plastic (c) the straw is hot (d) the straw is magnetic
21. 21.🌈 In VIBGYOR, what number colour is violet?
22. 22.🔍 Which is the odd one out? (a) honey (b) a coin (c) a glass marble (d) an ice cube
23. 23.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is the one thing we change. (a) True (b) False
24. 24.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
25. 25.🔮 Predict: you blow up a balloon. What fills it? (a) air (b) smoke (c) water (d) sand
26. 26.True or false: a comb is needed for the dissolving test. (a) True (b) False
27. 27.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) bright sunlight (c) a sunny window (d) a magnet
28. 28.True or false: turmeric powder is needed for the density tower. (a) True (b) False
29. 29.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they all turn green (b) they stay white (c) they fall off at once (d) they turn two colours
30. 30.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is less dense (c) ice is very cold (d) ice is magnetic
31. 31.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) cooking oil (c) a magnet (d) water with food colour
32. 32.🔍 Which is the odd one out? (a) a glass marble (b) honey (c) very salty water (d) a ping-pong ball
33. 33.🔍 Which is the odd one out? (a) a ping-pong ball (b) cooking oil (c) air (d) a pebble
34. 34.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is kept the same. (a) False (b) True
35. 35.🧺 Do we need turmeric powder for the water rainbow? (a) not needed (b) needed
36. 36.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same window is the one thing we change. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) a glass marble (b) cooking oil (c) air (d) a ping-pong ball
38. 38.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) neither of them (c) the big log (d) the small pebble
39. 39.⚖️ 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
40. 40.🚀 Which of these goes forward? (a) water a swimmer pushes (b) water from the oars (c) air from the balloon (d) the rocket

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