Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 834 · 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 balloon rocket. Which one is NOT needed? (a) sticky tape (b) a long string (c) a mirror (d) a balloon
2. 2.⚖️ 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
3. 3.🧺 Do we need turmeric powder for the paper helicopter? (a) needed (b) not needed
4. 4.True or false: a mirror is needed for the card-on-a-glass trick. (a) False (b) True
5. 5.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “brightness of rainbow”? (a) we keep it the same (b) we measure it (c) we change it
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) a battery cell (d) a long string
7. 7.⚖️ 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
8. 8.⚖️ 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 change it (b) we measure it (c) we keep it the same
9. 9.🛟 Where should you do the card-and-glass trick? (a) over a laptop (b) near a plug point (c) over a sink or bucket (d) on a bed
10. 10.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we change it (b) we measure it (c) we keep it the same
12. 12.🧺 Which of these is needed for the coloured flower experiment? (a) yeast (b) food colour (c) a balloon (d) a battery cell
13. 13.True or false: sugar in warm water dissolves faster. (a) False (b) True
14. 14.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is the one thing we change. (a) True (b) False
15. 15.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is what we measure. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) a glass marble (b) cooking oil (c) a cork (d) an ice cube
17. 17.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) yeast (c) a sheet of white paper (d) a clear glass of water
18. 18.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is heavier (b) it is hotter (c) it is magnetic (d) it will not break
19. 19.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
20. 20.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
21. 21.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a magnet (c) sticky tape (d) a drinking straw
22. 22.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? Which of these is what we measure? (a) the amount of water (b) the time we wait (c) how many drops form (d) the size of the bowl
23. 23.🧺 Which of these is needed for the card-on-a-glass trick? (a) a magnet (b) turmeric powder (c) yeast (d) a sink or a bucket
24. 24.📘 What is the push of air on a falling thing called? (a) air resistance (b) floating (c) dissolving (d) magnetism
25. 25.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) yellow (b) violet (c) orange (d) red
26. 26.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) honey (c) warm water (d) a mirror
27. 27.⚖️ 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
28. 28.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the amount of water”? (a) we change it (b) we measure it (c) we keep it the same
29. 29.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? True or false: how many drops form is kept the same. (a) False (b) True
30. 30.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
31. 31.🧺 Which of these is not needed for the water cycle bowl? (a) a magnet (b) ice cubes (c) water (d) a big bowl
32. 32.🧺 Do we need a sink or a bucket for the card-on-a-glass trick? (a) not needed (b) needed
33. 33.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) a balloon (b) a small cup (c) cling film (d) ice cubes
34. 34.True or false: a magnetic chess set works by magnetism. (a) True (b) False
35. 35.🧺 Do we need sunlight for the water cycle bowl? (a) not needed (b) needed
36. 36.🛟 Which of these sinks in water? (a) a feather (b) a cork (c) a ping-pong ball (d) a ball of clay
37. 37.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) a balloon (d) a tub of water
38. 38.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a results table (c) yeast (d) a mirror
39. 39.🔍 Which is the odd one out? (a) sawdust (b) glucose powder (c) food colour (d) table salt
40. 40.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a battery cell (c) a tall clear glass (d) cooking oil

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