Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 819 · 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 — do longer blades make the paper helicopter fall more slowly? Which of these is what we measure? (a) the paper clip (b) time to reach the floor (c) the drop height (d) the length of the blades
2. 2.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) a balloon (b) sunlight (c) water (d) ice cubes
3. 3.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same glass is what we measure. (a) True (b) False
4. 4.🥤 Why does juice go up a drinking straw when you sip? (a) the straw is hot (b) the straw is magnetic (c) juice likes plastic (d) air pushes it up
5. 5.True or false: sweat drying on skin is evaporation. (a) True (b) False
6. 6.🥛 Which of these works by air pressure? (a) a bicycle pump (b) a magnetic chess set (c) a fridge magnet (d) a magnetic pin holder
7. 7.🔍 Which is the odd one out? (a) a glass marble (b) a coin (c) air (d) honey
8. 8.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a drinking straw (c) a balloon (d) yeast
9. 9.🚁 Why do we clip a paper clip to the bottom of the helicopter? (a) to weigh down the bottom (b) to make it fall slower (c) to stop the spinning (d) to make it magnetic
10. 10.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) turmeric powder (b) water with food colour (c) a tall clear glass (d) honey
11. 11.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) aim it at your friend (c) put string round a neck (d) keep it away from faces
12. 12.🧺 Do we need a battery cell for the water rainbow? (a) needed (b) not needed
13. 13.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a balloon (c) a mirror (d) a magnet
14. 14.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
15. 15.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
16. 16.🌼 How does coloured water reach the petals? (a) it is sprayed on (b) through the air (c) through tiny stem tubes (d) it rains on them
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) how big we blow it (c) the same string
18. 18.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) a results table (c) a tub of water (d) small test objects
19. 19.🧺 Do we need food colour for the coloured flower experiment? (a) needed (b) not needed
20. 20.True or false: sugar dissolves in water. (a) True (b) False
21. 21.🛟 Why is a plastic cup safer than a glass for small children here? (a) it is magnetic (b) it will not break (c) it is hotter (d) it is heavier
22. 22.🥄 Which of these dissolves slower? (a) sugar in warm water (b) a big sugar cube (c) powdered sugar (d) sugar stirred well
23. 23.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? Which of these is kept the same? (a) the time we wait (b) sun or shade (c) how many drops form
24. 24.🌈 How many colours do we name in a rainbow (VIBGYOR)?
25. 25.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the length of the stem”? (a) we measure it (b) we change it (c) we keep it the same
26. 26.📘 Air presses on everything around us. What is this push called? (a) air pressure (b) sunlight (c) magnetism (d) friction
27. 27.⚖️ 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 what we measure. (a) True (b) False
28. 28.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a mirror (c) a battery cell (d) a results table
29. 29.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
30. 30.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a balloon (c) a spoon (d) honey
31. 31.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) cling film (b) a big bowl (c) ice cubes (d) turmeric powder
32. 32.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) keep them in your mouth (c) throw them away safely (d) chew them
33. 33.🔮 Predict: you add two more paper clips. How does it fall? (a) faster (b) slower (c) it floats up (d) it stops in the air
34. 34.🍯 Is honey denser or less dense than water? (a) denser than water (b) less dense than water
35. 35.True or false: a vacuum cleaner works by air pressure. (a) False (b) True
36. 36.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? True or false: the time we wait is the one thing we change. (a) True (b) False
37. 37.🥄 Which of these does not dissolve in water? (a) table salt (b) baking soda (c) sawdust (d) sugar
38. 38.True or false: sunlight is not needed for the water cycle bowl. (a) False (b) True
39. 39.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the amount of water”? (a) we measure it (b) we keep it the same (c) we change it
40. 40.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? What do we do with “sun or shade”? (a) we keep it the same (b) we change it (c) we measure it

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