Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 987 · 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.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) sugar in icy water (d) powdered sugar
2. 2.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) time to dissolve (b) the amount of water (c) the amount of sugar (d) the kind of sugar
4. 4.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a comb (c) warm water (d) a teaspoon
5. 5.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
6. 6.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
7. 7.True or false: cooking oil dissolves in water. (a) False (b) True
8. 8.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
9. 9.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) sugar (c) a magnet (d) cold water
10. 10.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
11. 11.🔍 Which is the odd one out? (a) food colour (b) small pebbles (c) sand (d) sawdust
12. 12.🧺 Which of these is not needed for the dissolving test? (a) honey (b) two clear glasses (c) a clock or timer (d) warm water
13. 13.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) cold water (c) sugar (d) a comb
14. 14.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) slower (c) the same (d) faster
15. 15.True or false: chalk powder does not dissolve in water. (a) False (b) True
16. 16.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
17. 17.True or false: sugar in icy water dissolves slower. (a) False (b) True
18. 18.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it floats up (c) it settles at the bottom (d) it turns blue
19. 19.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the stirring (b) the amount of sugar (c) the kind of sugar (d) the water temperature
20. 20.True or false: warm water is not needed for the dissolving test. (a) True (b) False
21. 21.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) sugar (c) two clear glasses (d) a mirror
22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we keep it the same (c) we measure it
23. 23.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a mirror (c) warm water (d) cold water
24. 24.🔍 Which is the odd one out? (a) chalk powder (b) table salt (c) small pebbles (d) sawdust
25. 25.True or false: a balloon is needed for the dissolving test. (a) False (b) True
26. 26.True or false: sugar is needed for the dissolving test. (a) True (b) False
27. 27.⚖️ 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
28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we keep it the same (b) we change it (c) we measure it
29. 29.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) the youngest child (c) nobody needs to (d) a grown-up
30. 30.🧺 Which of these is not needed for the dissolving test? (a) cotton wool (b) warm water (c) two clear glasses (d) cold water
31. 31.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the sugar turns to salt (b) some stays undissolved (c) the water turns solid (d) all of it dissolves
32. 32.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
33. 33.🥄 Which of these does not dissolve in water? (a) table salt (b) glucose powder (c) baking soda (d) chalk powder
34. 34.True or false: sugar dissolves in water. (a) True (b) False
35. 35.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) cotton wool (c) a balloon (d) cold water
36. 36.True or false: table salt dissolves in water. (a) False (b) True
37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) False (b) True
38. 38.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
39. 39.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we keep it the same (b) we change it (c) we measure it
40. 40.True or false: a mirror is needed for the dissolving test. (a) False (b) True

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