Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 435 · 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.True or false: sugar in warm water dissolves faster. (a) True (b) False
2. 2.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) taste it (c) look for leftover grains (d) smell it closely
3. 3.True or false: a teaspoon is needed for the dissolving test. (a) True (b) False
4. 4.True or false: a magnet is not needed for the dissolving test. (a) False (b) True
5. 5.True or false: cold water is needed for the dissolving test. (a) False (b) True
6. 6.⚖️ 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
7. 7.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
8. 8.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it spread in the water (c) it vanished for ever (d) it sank as sand
9. 9.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
10. 10.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
11. 11.🔍 Which is the odd one out? (a) small pebbles (b) chalk powder (c) glucose powder (d) sand
12. 12.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a mirror (c) two clear glasses (d) a clock or timer
13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the water temperature (b) time to dissolve (c) the amount of water
14. 14.⚖️ 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 water temperature (d) the amount of water
15. 15.True or false: a big sugar cube dissolves faster. (a) False (b) True
16. 16.🔮 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) all of it dissolves (d) the water turns solid
17. 17.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) sugar (c) a comb (d) a teaspoon
18. 18.⚖️ 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 keep it the same (c) we measure it
19. 19.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a friend who is running (c) nobody needs to (d) a grown-up
20. 20.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) honey (c) a clock or timer (d) a teaspoon
21. 21.True or false: glucose powder does not dissolve in water. (a) False (b) True
22. 22.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar left unstirred (c) powdered sugar (d) sugar stirred well
23. 23.🥄 Which of these does not dissolve in water? (a) baking soda (b) table salt (c) sugar (d) sawdust
24. 24.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a balloon (c) honey (d) warm water
25. 25.🥄 Which of these does not dissolve in water? (a) sugar (b) glucose powder (c) small pebbles (d) baking soda
26. 26.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) sugar (c) a balloon (d) two clear glasses
27. 27.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar in icy water (d) sugar in warm water
28. 28.🔍 Which is the odd one out? (a) table salt (b) chalk powder (c) small pebbles (d) cooking oil
29. 29.⚖️ 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
30. 30.True or false: chalk powder does not dissolve in water. (a) False (b) True
31. 31.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
32. 32.True or false: sugar left unstirred dissolves slower. (a) False (b) True
33. 33.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a comb (c) a clock or timer (d) a mirror
34. 34.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) sugar (c) a balloon (d) a clock or timer
35. 35.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a mirror (c) a magnet (d) two clear glasses
36. 36.True or false: sugar in warm water dissolves slower. (a) True (b) False
37. 37.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
38. 38.⚖️ 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 measure it (c) we change it
39. 39.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
40. 40.True or false: table salt does not dissolve in water. (a) True (b) False

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