Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 988 · 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.🧺 Which of these is needed for the density tower? (a) a balloon (b) cooking oil (c) a mirror (d) a battery cell
2. 2.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) cold water (c) a magnet (d) two clear glasses
3. 3.🧺 Do we need a balloon for the water rainbow? (a) needed (b) not needed
4. 4.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? What do we do with “the size of the bowl”? (a) we measure it (b) we change it (c) we keep it the same
5. 5.True or false: cotton wool is not needed for the dissolving test. (a) True (b) False
6. 6.🚀 Which of these goes forward? (a) the rowing boat (b) water from the oars (c) water a swimmer pushes (d) air from the balloon
7. 7.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) sugar (c) two clear glasses (d) cotton wool
8. 8.True or false: the rowing boat goes backward. (a) True (b) False
9. 9.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it turns all red (b) it turns brighter (c) it floats away (d) the rainbow fades
10. 10.🧺 Do we need a balloon for the density tower? (a) needed (b) not needed
11. 11.🔍 Which is the odd one out? (a) a steel spoon (b) a sugar cube (c) a rubber eraser (d) a plastic ruler
12. 12.🔍 Which is the odd one out? (a) a ping-pong ball (b) a cork (c) honey (d) an ice cube
13. 13.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a battery cell (c) a long string (d) two chairs
14. 14.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a results table (c) a balloon (d) a battery cell
15. 15.🔮 Predict: you add two more paper clips. How does it fall? (a) slower (b) it floats up (c) faster (d) it stops in the air
16. 16.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) forward (c) straight down (d) backward
17. 17.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a fridge magnet (c) a balloon rocket (d) a sundial
18. 18.⚖️ 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
19. 19.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: the same glass is kept the same. (a) False (b) True
20. 20.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? Which of these is what we measure? (a) the same three liquids (b) the order of the layers (c) the order of pouring (d) how much of each liquid
21. 21.🔍 You turn the full glass upside down, holding the card, then let go of the card. What happens? (a) the glass breaks (b) the water turns to ice (c) the card stays on (d) the card flies away
22. 22.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a towel for spills (c) a magnet (d) a tub of water
23. 23.🚁 Which of these falls fast through the air? (a) a feather (b) a fluff of cotton (c) a toy parachute (d) a glass marble
24. 24.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a battery cell (c) a sunny window (d) a sheet of white paper
25. 25.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? What do we do with “the kind of paper”? (a) we keep it the same (b) we measure it (c) we change it
26. 26.🧺 Which of these is needed for the water rainbow? (a) yeast (b) bright sunlight (c) turmeric powder (d) a mirror
27. 27.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) sticky tape (c) a long string (d) turmeric powder
28. 28.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? Which of these is kept the same? (a) the paper clip (b) time to reach the floor (c) the length of the blades
29. 29.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
30. 30.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) play near a deep pond (c) leave water on the floor (d) wipe up spills at once
31. 31.🧺 Which of these is needed for the water cycle bowl? (a) a battery cell (b) ice cubes (c) a balloon (d) a mirror
32. 32.🔮 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
33. 33.🔍 Which is the odd one out? (a) glucose powder (b) sugar (c) table salt (d) small pebbles
34. 34.🧺 Do we need a tall clear glass for the density tower? (a) not needed (b) needed
35. 35.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the same white paper”? (a) we change it (b) we keep it the same (c) we measure it
36. 36.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? What do we do with “how many drops form”? (a) we keep it the same (b) we measure it (c) we change it
37. 37.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) small test objects (c) a magnet (d) turmeric powder
38. 38.⚖️ 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 way we turn it (c) how full the glass is
39. 39.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) a magnet (b) cling film (c) a big bowl (d) a small cup
40. 40.🧺 Do we need a balloon for the coloured flower experiment? (a) not needed (b) needed

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