Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 962 · 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.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.True or false: warm water is not needed for the dissolving test. (a) False (b) True
3. 3.🧺 Three of these are needed for the paper helicopter. Which one is NOT needed? (a) a pencil (b) a ruler (c) a strip of paper (d) a magnet
4. 4.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) a mirror (c) a sheet of white paper (d) a clear glass of water
5. 5.🌊 What pushes a floating cork upward? (a) the water (b) the cork itself (c) the air above (d) the tub
6. 6.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) some stays undissolved (c) the sugar turns to salt (d) the water turns solid
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) False (b) True
8. 8.🚁 Which of these falls slowly through the air? (a) a coin (b) a paper helicopter (c) a stone (d) a crumpled paper ball
9. 9.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
10. 10.🔍 Which is the odd one out? (a) a glass marble (b) a strip of cloth (c) a paper towel (d) a sugar cube
11. 11.🛟 Which of these floats on water? (a) a pebble (b) a coin (c) a dry leaf (d) a glass marble
12. 12.🧺 Do we need a battery cell for the card-on-a-glass trick? (a) not needed (b) needed
13. 13.🧺 Three of these are needed for the card-on-a-glass trick. Which one is NOT needed? (a) a towel (b) a stiff postcard (c) a glass of water (d) yeast
14. 14.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
15. 15.True or false: a magnet is not needed for the coloured flower experiment. (a) False (b) True
16. 16.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the same window”? (a) we keep it the same (b) we change it (c) we measure it
17. 17.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? True or false: the size of the bowl is kept the same. (a) True (b) False
18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we measure it (b) we keep it the same (c) we change it
19. 19.💧 Which of these is melting? (a) making ice lollies (b) drops under a pot lid (c) snow turning to water (d) dew on morning grass
20. 20.True or false: turmeric powder is not needed for the density tower. (a) True (b) False
21. 21.True or false: a small cup is not needed for the water cycle bowl. (a) False (b) True
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same straw (b) distance it travels (c) how big we blow it
23. 23.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the water layer (b) on top of the oil (c) at the very bottom (d) in the oil layer
24. 24.True or false: cling film is not needed for the water cycle bowl. (a) True (b) False
25. 25.🧺 Do we need a sunny window for the water rainbow? (a) not needed (b) needed
26. 26.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar left unstirred (d) powdered sugar
27. 27.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
28. 28.True or false: the swimmer goes forward. (a) False (b) True
29. 29.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) honey (c) a tall clear glass (d) a battery cell
30. 30.⚖️ 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 order of pouring”? (a) we change it (b) we measure it (c) we keep it the same
31. 31.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? What do we do with “sun or shade”? (a) we change it (b) we measure it (c) we keep it the same
32. 32.True or false: a plastic ruler lets water climb up it. (a) True (b) False
33. 33.🧺 Which of these is needed for the paper helicopter? (a) yeast (b) a strip of paper (c) a magnet (d) a battery cell
34. 34.🧺 Do we need turmeric powder for the water cycle bowl? (a) needed (b) not needed
35. 35.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) whether it floats (b) the kind of clay (c) the shape of the clay
36. 36.True or false: a ball of clay sinks in water. (a) True (b) False
37. 37.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) small test objects (c) a results table (d) a mirror
38. 38.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
39. 39.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
40. 40.True or false: a magnet is needed for the water rainbow. (a) True (b) False

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids