Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 388 · 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) a big sugar cube (b) sugar in warm water (c) sugar stirred well (d) powdered sugar
2. 2.🧺 Which of these is needed for the dissolving test? (a) two clear glasses (b) a comb (c) a mirror (d) cotton wool
3. 3.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) faster (c) slower (d) the same
4. 4.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
5. 5.True or false: cold water is not needed for the dissolving test. (a) False (b) True
6. 6.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) the youngest child (c) a friend who is running (d) nobody needs to
7. 7.⚖️ 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
8. 8.⚖️ 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 sugar
9. 9.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) a clock or timer (c) two clear glasses (d) a magnet
10. 10.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
11. 11.True or false: sugar in warm water dissolves slower. (a) False (b) True
12. 12.🥄 Which of these dissolves in water? (a) cooking oil (b) chalk powder (c) sand (d) sugar
13. 13.🥄 Which of these does not dissolve in water? (a) sugar (b) baking soda (c) glucose powder (d) sawdust
14. 14.🔍 Which is the odd one out? (a) table salt (b) sugar (c) food colour (d) cooking oil
15. 15.True or false: powdered sugar dissolves faster. (a) True (b) False
16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is the one thing we change. (a) True (b) False
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) False (b) True
18. 18.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
19. 19.True or false: cotton wool is needed for the dissolving test. (a) True (b) False
20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is what we measure. (a) False (b) True
21. 21.True or false: a magnet is not needed for the dissolving test. (a) False (b) True
22. 22.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
23. 23.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a clock or timer (c) a balloon (d) two clear glasses
24. 24.True or false: chalk powder does not dissolve in water. (a) True (b) False
25. 25.🧺 Which of these is not needed for the dissolving test? (a) cotton wool (b) two clear glasses (c) cold water (d) warm water
26. 26.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar stirred well (d) sugar left unstirred
27. 27.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
28. 28.True or false: two clear glasses is needed for the dissolving test. (a) False (b) True
29. 29.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
30. 30.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) warm water (c) two clear glasses (d) a balloon
31. 31.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) cold water is wet (c) particles move faster (d) sugar likes the dark
32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is kept the same. (a) True (b) False
33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we keep it the same (b) we measure it (c) we change it
34. 34.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
35. 35.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
36. 36.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we keep it the same (b) we measure it (c) we change it
37. 37.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it vanished for ever (c) it became air (d) it sank as sand
38. 38.True or false: food colour does not dissolve in water. (a) True (b) False
39. 39.⚖️ 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
40. 40.True or false: a comb is needed for the dissolving test. (a) False (b) True

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