Water and Air Experiments Test Worksheet

Science experiments lesson 10: Part 1 test: water and air · Set 602 · 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 the layers end up in the same order if we pour the liquids in a different order? True or false: how much of each liquid is what we measure. (a) False (b) True
2. 2.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is kept the same. (a) True (b) False
3. 3.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a balloon (c) a tub of water (d) turmeric powder
4. 4.📘 Air presses on everything around us. What is this push called? (a) magnetism (b) friction (c) sunlight (d) air pressure
5. 5.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
6. 6.True or false: a balloon is not needed for the dissolving test. (a) False (b) True
7. 7.💧 Which of these lets water climb up it? (a) a paper towel (b) a steel spoon (c) a plastic ruler (d) a glass marble
8. 8.🚁 Which of these falls slowly through the air? (a) a glass marble (b) a coin (c) a steel spoon (d) a fluff of cotton
9. 9.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is kept the same. (a) True (b) False
10. 10.True or false: an ice-cream stick floats on water. (a) False (b) True
11. 11.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
12. 12.True or false: a metal key sinks in water. (a) True (b) False
13. 13.💧 Which of these lets water climb up it? (a) a sugar cube (b) a plastic ruler (c) a rubber eraser (d) a piece of foil
14. 14.True or false: a pebble is less dense than water. (a) False (b) True
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we keep it the same (b) we change it (c) we measure it
16. 16.🧺 Do we need honey for the density tower? (a) needed (b) not needed
17. 17.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) under the honey (b) in the water layer (c) on top of the oil (d) in the honey layer
18. 18.🧺 Which of these is needed for the water rainbow? (a) a clear glass of water (b) a balloon (c) a magnet (d) yeast
19. 19.🧺 Three of these are needed for the paper helicopter. Which one is NOT needed? (a) a strip of paper (b) safety scissors (c) a magnet (d) a pencil
20. 20.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a mirror (c) a battery cell (d) small test objects
21. 21.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the same window”? (a) we measure it (b) we change it (c) we keep it the same
22. 22.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) a mirror (b) water (c) a big bowl (d) cling film
23. 23.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? What do we do with “the way we turn it”? (a) we measure it (b) we change it (c) we keep it the same
24. 24.True or false: a compass needle works by magnetism. (a) False (b) True
25. 25.True or false: turmeric powder is needed for the density tower. (a) True (b) False
26. 26.⚖️ 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 same white paper (b) the same glass (c) the time of day (d) the amount of water
27. 27.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar in warm water (d) sugar in icy water
28. 28.🧺 Which of these is not needed for the water cycle bowl? (a) a big bowl (b) a small cup (c) a battery cell (d) cling film
29. 29.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
30. 30.🧺 Do we need ice cubes for the water cycle bowl? (a) needed (b) not needed
31. 31.🧺 Do we need a small cup for the water cycle bowl? (a) needed (b) not needed
32. 32.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is kept the same? (a) the amount of water (b) brightness of rainbow (c) the same glass
33. 33.🛟 Which rule keeps the density tower experiment safe? (a) pour it on the floor (b) throw the glass (c) do not lick the spoon (d) taste each layer
34. 34.🧺 Which of these is not needed for the coloured flower experiment? (a) a mirror (b) food colour (c) a white flower (d) a few hours of waiting
35. 35.True or false: a teaspoon is needed for the dissolving test. (a) False (b) True
36. 36.🔮 Predict: you fold the two blades the other way. What changes? (a) it does not fall (b) it turns blue (c) it spins the other way (d) it falls upward
37. 37.⚖️ 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 the one thing we change. (a) False (b) True
38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we change it (b) we measure it (c) we keep it the same
39. 39.🧺 Which of these is needed for the paper helicopter? (a) a mirror (b) turmeric powder (c) yeast (d) a ruler
40. 40.🔮 Why do we try the card trick over a sink or a bucket? (a) to cool the glass (b) to grow plants (c) to catch any spills (d) to make it rain

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