Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 959 · 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 the shape of a lump of clay change whether it floats? True or false: the shape of the clay is the one thing we change. (a) False (b) True
2. 2.True or false: a big sugar cube dissolves faster. (a) True (b) False
3. 3.⚖️ 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 kept the same. (a) True (b) False
4. 4.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a few hours of waiting (c) food colour (d) a magnet
5. 5.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
6. 6.🧺 Do we need a mirror for the paper helicopter? (a) not needed (b) needed
7. 7.💧 Which change is this: drops under a pot lid? (a) evaporation (b) condensation (c) freezing (d) melting
8. 8.💧 Which of these is melting? (a) dew on morning grass (b) wet clothes drying (c) a puddle drying up (d) butter going runny
9. 9.🔍 Which is the odd one out? (a) snow turning to water (b) butter going runny (c) wet clothes drying (d) ice becoming water
10. 10.🥄 Which of these dissolves in water? (a) food colour (b) sand (c) small pebbles (d) chalk powder
11. 11.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? True or false: the person dropping is kept the same. (a) False (b) True
12. 12.🥄 Which of these dissolves in water? (a) chalk powder (b) small pebbles (c) sawdust (d) glucose powder
13. 13.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a mirror (c) sugar (d) a teaspoon
14. 14.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) a battery cell (c) cooking oil (d) honey
15. 15.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it sinks (c) it melts (d) it floats higher
16. 16.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a battery cell (c) a balloon (d) a drinking straw
17. 17.🥄 Which of these dissolves in water? (a) sand (b) sawdust (c) sugar (d) small pebbles
18. 18.🧺 Do we need a magnet for the density tower? (a) needed (b) not needed
19. 19.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a glass of water (c) a battery cell (d) food colour
20. 20.🧺 Do we need a big bowl for the water cycle bowl? (a) needed (b) not needed
21. 21.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) the shape of the clay (b) the kind of clay (c) whether it floats (d) the tub of water
22. 22.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) small test objects (c) a towel for spills (d) turmeric powder
23. 23.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a balloon (c) food colour (d) a few hours of waiting
24. 24.🥄 Which of these dissolves slower? (a) sugar stirred well (b) powdered sugar (c) a big sugar cube (d) sugar in warm water
25. 25.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
26. 26.True or false: a glass marble is less dense than water. (a) False (b) True
27. 27.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? True or false: the cling film cover is kept the same. (a) True (b) False
28. 28.💧 Which of these does not let water climb? (a) a sugar cube (b) a paper towel (c) a glass marble (d) a cotton thread
29. 29.True or false: a cork is denser than water. (a) False (b) True
30. 30.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is very cold (c) ice is less dense (d) ice is magnetic
31. 31.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) blow it till it bursts (c) keep it away from faces (d) aim it at your friend
32. 32.True or false: a glass marble sinks in water. (a) False (b) True
33. 33.True or false: an ice cube floats on water. (a) True (b) False
34. 34.🥛 Why is it best to fill the glass right to the top? (a) water is heavier (b) it looks nicer (c) little air left inside (d) the card gets wet
35. 35.True or false: cooking oil is needed for the density tower. (a) True (b) False
36. 36.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) yeast (c) a tub of water (d) small test objects
37. 37.🔍 Which is the odd one out? (a) very salty water (b) cooking oil (c) an ice cube (d) a cork
38. 38.⚖️ 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) distance it travels (c) the same straw (d) the same tape
39. 39.🧺 Do we need a paper clip for the paper helicopter? (a) not needed (b) needed
40. 40.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? True or false: sun or shade is what we measure. (a) False (b) True

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