Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 404 · 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.🔍 You turn the full glass upside down, holding the card, then let go of the card. What happens? (a) the card stays on (b) the glass breaks (c) the water turns to ice (d) the card flies away
2. 2.🧺 Do we need a sunny window for the water rainbow? (a) needed (b) not needed
3. 3.True or false: a magnet is not needed for the coloured flower experiment. (a) True (b) False
4. 4.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) a big bowl (b) cling film (c) a magnet (d) ice cubes
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) how big we blow it (b) the same straw (c) distance it travels (d) the slope of the string
6. 6.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) whether it floats (b) the kind of clay (c) the shape of the clay (d) the tub of water
7. 7.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) sugar likes the dark (c) cold water is wet (d) warm water is thicker
8. 8.⚖️ 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 the one thing we change. (a) True (b) False
9. 9.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the amount of colour”? (a) we change it (b) we keep it the same (c) we measure it
10. 10.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) turmeric powder (b) a spoon (c) honey (d) cooking oil
11. 11.⚖️ 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
12. 12.⚖️ 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 measure it (b) we keep it the same (c) we change it
13. 13.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a long string (c) sticky tape (d) a magnet
14. 14.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it turns to stone (c) it dissolves (d) it sinks faster
15. 15.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? What do we do with “the amount of water”? (a) we measure it (b) we change it (c) we keep it the same
16. 16.True or false: a sheet of white paper is not needed for the water rainbow. (a) True (b) False
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) False (b) True
18. 18.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a ball of clay (c) an empty capped bottle (d) an ice-cream stick
19. 19.🔮 Predict: you blow up a balloon. What fills it? (a) water (b) air (c) smoke (d) sand
20. 20.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) not needed (b) needed
21. 21.True or false: a sink or a bucket is needed for the card-on-a-glass trick. (a) False (b) True
22. 22.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the kind of clay (b) whether it floats (c) the shape of the clay
23. 23.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) yeast (b) a glass of water (c) a stiff postcard (d) a towel
24. 24.🧺 Do we need yeast for the density tower? (a) not needed (b) needed
25. 25.🧺 Which of these is not needed for the density tower? (a) a battery cell (b) water with food colour (c) a spoon (d) cooking oil
26. 26.True or false: making ice lollies is evaporation. (a) False (b) True
27. 27.🍯 Which of these is denser than water? (a) a cork (b) a coin (c) cooking oil (d) an ice cube
28. 28.🧺 Which of these is needed for the density tower? (a) a magnet (b) a battery cell (c) a mirror (d) a spoon
29. 29.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is the one thing we change. (a) False (b) True
30. 30.🧺 Which of these is not needed for the water cycle bowl? (a) a small cup (b) a battery cell (c) ice cubes (d) a big bowl
31. 31.🚁 Which of these falls fast through the air? (a) a toy parachute (b) a stone (c) a feather (d) a paper helicopter
32. 32.🧺 Which of these is needed for the dissolving test? (a) warm water (b) a mirror (c) a magnet (d) honey
33. 33.🚁 Why do we clip a paper clip to the bottom of the helicopter? (a) to stop the spinning (b) to make it magnetic (c) to make it fall slower (d) to weigh down the bottom
34. 34.🛟 Which of these floats on water? (a) an iron nail (b) a piece of thermocol (c) a metal key (d) a pebble
35. 35.🌈 In VIBGYOR, what number colour is green?
36. 36.🔍 Which is the odd one out? (a) a coin (b) a steel spoon (c) an iron nail (d) a ping-pong ball
37. 37.🛟 Which rule keeps the density tower experiment safe? (a) pour it on the floor (b) do not lick the spoon (c) taste each layer (d) throw the glass
38. 38.🥛 Which of these works by magnetism? (a) a bicycle pump (b) a magnetic chess set (c) a vacuum cleaner (d) a medicine dropper
39. 39.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? What do we do with “the cling film cover”? (a) we keep it the same (b) we measure it (c) we change it
40. 40.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed

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