Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 864 · 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) a sheet of white paper (b) bright sunlight (c) a clear glass of water (d) a magnet
2. 2.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? What do we do with “the time we wait”? (a) we keep it the same (b) we change it (c) we measure it
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) False (b) True
4. 4.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: brightness of rainbow is kept the same. (a) True (b) False
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we measure it (b) we keep it the same (c) we change it
6. 6.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
7. 7.💧 Which change is this: a pond icing over? (a) freezing (b) evaporation (c) condensation (d) melting
8. 8.🥄 Which of these dissolves in water? (a) chalk powder (b) cooking oil (c) sawdust (d) baking soda
9. 9.🔍 Which is the odd one out? (a) a plastic ruler (b) a rubber eraser (c) a steel spoon (d) a strip of cloth
10. 10.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same window is what we measure. (a) True (b) False
11. 11.🚁 Which of these falls fast through the air? (a) an open sheet of paper (b) a feather (c) a crumpled paper ball (d) a toy parachute
12. 12.🍯 Is cooking oil denser or less dense than water? (a) denser than water (b) less dense than water
13. 13.🔍 Which is the odd one out? (a) water becoming ice (b) a pond icing over (c) making ice lollies (d) a misty bathroom mirror
14. 14.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) a big bowl (b) a small cup (c) a balloon (d) water
15. 15.🧺 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) yeast (d) a glass of water
16. 16.True or false: sunlight is needed for the water cycle bowl. (a) False (b) True
17. 17.True or false: a pebble floats on water. (a) False (b) True
18. 18.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False
19. 19.True or false: drops on a cold glass is evaporation. (a) False (b) True
20. 20.🔍 Which is the odd one out? (a) a compass needle (b) a drinking straw (c) a fridge magnet (d) a magnetic chess set
21. 21.True or false: a battery cell is not needed for the balloon rocket. (a) False (b) True
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) how big we blow it (b) the same straw (c) distance it travels (d) the same string
23. 23.🥄 Which of these dissolves in water? (a) food colour (b) chalk powder (c) cooking oil (d) sand
24. 24.True or false: glucose powder dissolves in water. (a) True (b) False
25. 25.🛟 What should you do after handling food colour? (a) wipe them on walls (b) lick your fingers (c) wash your hands (d) rub your eyes
26. 26.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? Which of these is the one thing we change? (a) the amount of water (b) time for colour to show (c) the length of the stem (d) the room it stands in
27. 27.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
28. 28.🔍 What do you see after pouring honey, water and oil into one glass? (a) bubbles of gas (b) the glass gets hot (c) three separate layers (d) one mixed colour
29. 29.True or false: a battery cell is not needed for the density tower. (a) False (b) True
30. 30.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) faster (c) the same (d) not at all
31. 31.🛟 Which scissors should children use to cut the paper? (a) sharp kitchen shears (b) safety scissors (c) a paper cutter (d) gardening shears
32. 32.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is the one thing we change? (a) the same white paper (b) the amount of water (c) brightness of rainbow (d) the time of day
33. 33.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes much farther (c) it goes less far (d) it turns into a kite
34. 34.🧺 Do we need ice cubes for the water cycle bowl? (a) not needed (b) needed
35. 35.🚁 Which of these falls fast through the air? (a) an open sheet of paper (b) a fluff of cotton (c) a coin (d) a feather
36. 36.True or false: a coin is less dense than water. (a) False (b) True
37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we change it (b) we keep it the same (c) we measure it
38. 38.🌦️ To see a rainbow in the sky, where must the Sun be? (a) straight above you (b) behind you (c) in front of you (d) under the ground
39. 39.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a tub of water (c) small test objects (d) a balloon
40. 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we keep it the same (b) we measure it (c) we change it

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