Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 932 · 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 dissolves in water? (a) small pebbles (b) cooking oil (c) sawdust (d) glucose powder
2. 2.⚖️ 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 time of day (b) the amount of water (c) the same window (d) the same glass
3. 3.⚖️ 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 change it (c) we measure it
4. 4.True or false: a magnet is needed for the density tower. (a) False (b) True
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we keep it the same (b) we measure it (c) we change it
6. 6.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
7. 7.True or false: sugar stirred well dissolves faster. (a) True (b) False
8. 8.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) bright sunlight (c) a mirror (d) a sheet of white paper
9. 9.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? What do we do with “how full the glass is”? (a) we keep it the same (b) we change it (c) we measure it
10. 10.🔍 Which is the odd one out? (a) a pebble (b) very salty water (c) cooking oil (d) a glass marble
11. 11.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it bounces up (c) it dissolves (d) it floats
12. 12.🚀 Which of these goes forward? (a) water a swimmer pushes (b) the balloon (c) water from the oars (d) air from the balloon
13. 13.🧺 Do we need a big bowl for the water cycle bowl? (a) not needed (b) needed
14. 14.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a tub of water (c) a balloon (d) a towel for spills
15. 15.True or false: a puddle drying up is evaporation. (a) True (b) False
16. 16.🧺 Do we need yeast for the water rainbow? (a) needed (b) not needed
17. 17.True or false: yeast is needed for the water rainbow. (a) False (b) True
18. 18.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a mirror (c) sticky tape (d) vinegar
19. 19.🔍 Which is the odd one out? (a) an ice cube (b) a metal key (c) an ice-cream stick (d) a ping-pong ball
20. 20.🔍 Which is the odd one out? (a) drops on a cold glass (b) wet hair drying (c) a misty bathroom mirror (d) dew on morning grass
21. 21.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) magnets (b) balloons (c) prisms (d) clouds
22. 22.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? True or false: the person dropping is what we measure. (a) True (b) False
23. 23.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
24. 24.🧺 Which of these is needed for the paper helicopter? (a) a pencil (b) a battery cell (c) a magnet (d) a balloon
25. 25.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
26. 26.🧺 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) turmeric powder (d) a glass of water
27. 27.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: time for colour to show is kept the same. (a) False (b) True
28. 28.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: brightness of rainbow is what we measure. (a) True (b) False
29. 29.🛟 Where should you do the card-and-glass trick? (a) near a plug point (b) on a bed (c) over a sink or bucket (d) over a laptop
30. 30.True or false: a big sugar cube dissolves faster. (a) True (b) False
31. 31.🧺 Which of these is needed for the density tower? (a) a balloon (b) water with food colour (c) yeast (d) a mirror
32. 32.🧺 Do we need a balloon for the water cycle bowl? (a) needed (b) not needed
33. 33.🥄 Which of these dissolves in water? (a) sawdust (b) cooking oil (c) table salt (d) chalk powder
34. 34.🧺 Which of these is not needed for the float-or-sink test? (a) a magnet (b) a results table (c) a towel for spills (d) small test objects
35. 35.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) a clear glass of water (c) a sheet of white paper (d) a magnet
36. 36.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? Which of these is what we measure? (a) whether the card stays (b) the same glass (c) the way we turn it (d) how full the glass is
37. 37.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) yellow (b) violet (c) red (d) orange
38. 38.💧 Which change is this: making ice lollies? (a) evaporation (b) freezing (c) condensation (d) melting
39. 39.True or false: a coin is less dense than water. (a) True (b) False
40. 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we measure it (b) we change it (c) we keep it the same

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