Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 495 · 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.True or false: water is not needed for the water cycle bowl. (a) False (b) True
2. 2.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) a mirror (c) a sunny window (d) a sheet of white paper
3. 3.True or false: sunlight is needed for the water cycle bowl. (a) False (b) True
4. 4.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) leave water on the floor (c) wipe up spills at once (d) play near a deep pond
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 glass”? (a) we keep it the same (b) we measure it (c) we change it
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we measure it (c) we keep it the same
7. 7.🥄 Which of these dissolves in water? (a) sand (b) small pebbles (c) cooking oil (d) table salt
8. 8.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? Which of these is kept the same? (a) whether the card stays (b) the same card (c) how full the glass is
9. 9.☀️ What is white sunlight really made of? (a) only yellow light (b) many colours mixed (c) tiny drops of water (d) tiny bits of dust
10. 10.🧺 Do we need cling film for the water cycle bowl? (a) not needed (b) needed
11. 11.🧺 Do we need a balloon for the coloured flower experiment? (a) not needed (b) needed
12. 12.🥛 Which of these works by magnetism? (a) a magnetic pin holder (b) a suction hook (c) a vacuum cleaner (d) a bicycle pump
13. 13.True or false: a magnet is needed for the paper helicopter. (a) True (b) False
14. 14.🛟 Where is a safe place to drop the helicopter from? (a) a high window ledge (b) from your raised hand (c) a wobbly chair (d) a roof edge
15. 15.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
16. 16.🧺 Which of these is not needed for the paper helicopter? (a) a strip of paper (b) a magnet (c) safety scissors (d) a paper clip
17. 17.🧺 Do we need a magnet for the density tower? (a) needed (b) not needed
18. 18.🧺 Which of these is not needed for the water rainbow? (a) a balloon (b) a clear glass of water (c) bright sunlight (d) a sheet of white paper
19. 19.🧺 Do we need a battery cell for the paper helicopter? (a) needed (b) not needed
20. 20.🔍 Which is the odd one out? (a) a magnetic pin holder (b) a drinking straw (c) a compass needle (d) a fridge magnet
21. 21.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: how full the glass is is the one thing we change. (a) False (b) True
22. 22.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same white paper is what we measure. (a) False (b) True
23. 23.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) water with food colour (c) yeast (d) honey
24. 24.🧺 Do we need yeast for the water cycle bowl? (a) not needed (b) needed
25. 25.🚁 Which of these falls fast through the air? (a) a feather (b) a crumpled paper ball (c) an open sheet of paper (d) a paper helicopter
26. 26.True or false: water from the oars goes backward. (a) True (b) False
27. 27.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is kept the same. (a) False (b) True
28. 28.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) a clear glass of water (c) bright sunlight (d) a magnet
29. 29.🔍 Which is the odd one out? (a) a sugar cube (b) a paper towel (c) a plastic ruler (d) a strip of cloth
30. 30.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: the order of pouring is what we measure. (a) True (b) False
31. 31.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) backward (c) forward (d) straight down
32. 32.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
33. 33.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) a stiff postcard (c) a sink or a bucket (d) yeast
34. 34.🛟 Which rule keeps the density tower experiment safe? (a) throw the glass (b) do not lick the spoon (c) taste each layer (d) pour it on the floor
35. 35.🚀 Which of these goes backward? (a) the rocket (b) water from the oars (c) the rowing boat (d) the swimmer
36. 36.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a glass of water (b) a sink or a bucket (c) a balloon (d) a stiff postcard
37. 37.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to splash everyone (c) to keep children safe (d) to hide the corks
38. 38.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? True or false: the same card is kept the same. (a) True (b) False
39. 39.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) slower (c) the same (d) not at all
40. 40.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) a battery cell (c) a spoon (d) water with food colour

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