Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 222 · 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.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a clear glass of water (c) a sheet of white paper (d) turmeric powder
2. 2.🧺 Do we need a mirror for the water rainbow? (a) not needed (b) needed
3. 3.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) bright sunlight (c) a sheet of white paper (d) a magnet
4. 4.🧺 Which of these is needed for the water cycle bowl? (a) a mirror (b) cling film (c) yeast (d) a battery cell
5. 5.💧 Which of these is evaporation? (a) water becoming ice (b) a pond icing over (c) wet hair drying (d) a misty bathroom mirror
6. 6.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) chew them (c) give them to a baby (d) keep them in your mouth
7. 7.🛟 Which of these sinks in water? (a) a pebble (b) a feather (c) a dry leaf (d) a ping-pong ball
8. 8.🧺 Which of these is needed for the density tower? (a) honey (b) a balloon (c) a mirror (d) a magnet
9. 9.⚖️ 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) True (b) False
10. 10.🔍 What do you see after pouring honey, water and oil into one glass? (a) the glass gets hot (b) bubbles of gas (c) three separate layers (d) one mixed colour
11. 11.💧 Which of these is melting? (a) sweat drying on skin (b) wet clothes drying (c) drops under a pot lid (d) ice becoming water
12. 12.🌈 In VIBGYOR, what number colour is yellow?
13. 13.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they turn to honey (b) they mix for ever (c) they become solid (d) they separate again
14. 14.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? Which of these is what we measure? (a) the amount of water (b) sun or shade (c) how many drops form (d) the cling film cover
15. 15.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
16. 16.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to splash everyone (c) to hide the corks (d) to win a prize
17. 17.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) turmeric powder (c) a towel for spills (d) small test objects
18. 18.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
19. 19.🛟 Why should only a grown-up handle any hot water? (a) hot water is heavy (b) hot water can scald (c) hot water is magnetic (d) it changes colour
20. 20.🔮 A flat sheet and a crumpled ball of the same paper drop together. Which lands first? (a) neither of them (b) the crumpled ball (c) the flat sheet (d) a sheet of glass
21. 21.🥄 Does food colour 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? Which of these is the one thing we change? (a) the kind of paper (b) the paper clip (c) the drop height (d) the length of the blades
23. 23.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
24. 24.🛟 Which scissors should children use to cut the paper? (a) sharp kitchen shears (b) a paper cutter (c) gardening shears (d) safety scissors
25. 25.🥄 Which of these does not dissolve in water? (a) sugar (b) glucose powder (c) sawdust (d) table salt
26. 26.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
27. 27.🔍 Which is the odd one out? (a) a pond icing over (b) water becoming ice (c) making ice lollies (d) a puddle drying up
28. 28.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the shape of the clay”? (a) we keep it the same (b) we measure it (c) we change it
29. 29.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? Which of these is what we measure? (a) the paper clip (b) the person dropping (c) the kind of paper (d) time to reach the floor
30. 30.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
31. 31.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) vinegar (d) sticky tape
32. 32.⚖️ 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
33. 33.🧺 Which of these is not needed for the paper helicopter? (a) a pencil (b) turmeric powder (c) a strip of paper (d) safety scissors
34. 34.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) at the very bottom (b) on top of the oil (c) in the oil layer (d) in the water layer
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the slope of the string (b) the same straw (c) the same tape (d) how big we blow it
36. 36.True or false: snow turning to water is melting. (a) True (b) False
37. 37.🛟 Who should trim the flower stem? (a) a pet (b) anyone, without looking (c) a toddler (d) a grown-up
38. 38.🧺 Do we need a battery cell for the paper helicopter? (a) needed (b) not needed
39. 39.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the kind of sugar (b) the water temperature (c) time to dissolve (d) the amount of sugar
40. 40.🧺 Three of these are needed for the paper helicopter. Which one is NOT needed? (a) a paper clip (b) a ruler (c) turmeric powder (d) a pencil

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