Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 965 · 40 questions

What you do (Warm, stir, small): 1. An adult pours the same amount of warm water and cold water into two glasses. 2. Add one level teaspoon of sugar to each at the same time. 3. Stir each the same number of times and time how long the sugar takes to vanish. 4. Look, do not taste — then compare the two times.

1. 1.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a comb (b) two clear glasses (c) warm water (d) cold water
2. 2.True or false: sugar stirred well dissolves slower. (a) True (b) False
3. 3.🔍 Which is the odd one out? (a) cooking oil (b) sand (c) chalk powder (d) food colour
4. 4.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
5. 5.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we measure it (b) we change it (c) we keep it the same
6. 6.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) cotton wool (c) cold water (d) a balloon
7. 7.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) powdered sugar (d) sugar left unstirred
8. 8.True or false: a balloon is needed for the dissolving test. (a) False (b) True
9. 9.⚖️ 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
10. 10.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
11. 11.True or false: table salt does not dissolve in water. (a) False (b) True
12. 12.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we measure it (b) we change it (c) we keep it the same
14. 14.🥄 Which of these dissolves in water? (a) food colour (b) sawdust (c) sand (d) small pebbles
15. 15.🥄 Which of these does not dissolve in water? (a) sand (b) sugar (c) glucose powder (d) food colour
16. 16.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a teaspoon (c) sugar (d) honey
17. 17.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a balloon (b) a clock or timer (c) cold water (d) warm water
18. 18.True or false: sugar in warm water dissolves faster. (a) False (b) True
19. 19.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) False (b) True
21. 21.True or false: sugar stirred well dissolves faster. (a) True (b) False
22. 22.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) neither of them (c) powdered sugar (d) both the same
23. 23.True or false: small pebbles dissolves in water. (a) True (b) False
24. 24.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
25. 25.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) not at all (c) slower (d) faster
26. 26.True or false: a comb is needed for the dissolving test. (a) False (b) True
27. 27.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) the sugar turns to salt (c) the water turns solid (d) all of it dissolves
28. 28.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
29. 29.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a magnet (c) a comb (d) two clear glasses
30. 30.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
31. 31.🥄 Which of these dissolves in water? (a) sawdust (b) small pebbles (c) cooking oil (d) baking soda
32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the kind of sugar (b) the amount of sugar (c) the stirring (d) the water temperature
33. 33.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
34. 34.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it sank as sand (c) it became air (d) it vanished for ever
35. 35.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we change it (b) we keep it the same (c) we measure it
36. 36.True or false: two clear glasses is needed for the dissolving test. (a) False (b) True
37. 37.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in warm water (c) a big sugar cube (d) powdered sugar
38. 38.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
39. 39.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a friend who is running (c) a grown-up (d) the youngest child
40. 40.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it turns blue (c) it settles at the bottom (d) it floats up

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