Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 722 · 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.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is the one thing we change. (a) True (b) False
2. 2.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
3. 3.⚖️ 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 measure it (c) we change it
4. 4.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
5. 5.True or false: table salt does not dissolve in water. (a) True (b) False
6. 6.True or false: sugar dissolves in water. (a) False (b) True
7. 7.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) slower (c) not at all (d) faster
8. 8.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
9. 9.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) the sugar cube (c) neither of them (d) powdered sugar
10. 10.True or false: sugar in warm water dissolves faster. (a) False (b) True
11. 11.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a teaspoon (c) a mirror (d) a clock or timer
12. 12.⚖️ 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 measure it (c) we change it
13. 13.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) the water turns solid (c) some stays undissolved (d) the sugar turns to salt
14. 14.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a solution (c) a crystal (d) a rainbow
15. 15.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) cold water (c) sugar (d) cotton wool
16. 16.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of water (b) the water temperature (c) time to dissolve
18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of water (b) the kind of sugar (c) the amount of sugar (d) time to dissolve
19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) warm water (c) cotton wool (d) cold water
20. 20.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) nobody needs to (c) a friend who is running (d) a grown-up
21. 21.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it became air (c) it spread in the water (d) it vanished for ever
22. 22.True or false: cotton wool is not needed for the dissolving test. (a) True (b) False
23. 23.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a clock or timer (c) a mirror (d) warm water
24. 24.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) sugar stirred well (d) sugar left unstirred
25. 25.🥄 Which of these dissolves in water? (a) sand (b) table salt (c) sawdust (d) chalk powder
26. 26.🥄 Which of these does not dissolve in water? (a) chalk powder (b) baking soda (c) glucose powder (d) food colour
27. 27.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
28. 28.⚖️ 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
29. 29.True or false: a teaspoon is needed for the dissolving test. (a) True (b) False
30. 30.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
31. 31.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
32. 32.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
33. 33.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar in warm water (d) sugar in icy water
34. 34.🥄 Which of these does not dissolve in water? (a) sugar (b) small pebbles (c) glucose powder (d) baking soda
35. 35.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) two clear glasses (c) warm water (d) a magnet
36. 36.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
37. 37.True or false: small pebbles does not dissolve in water. (a) True (b) False
38. 38.True or false: sugar left unstirred dissolves slower. (a) False (b) True
39. 39.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) warm water (c) a comb (d) sugar
40. 40.True or false: baking soda dissolves in water. (a) False (b) True

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