Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 17 · 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.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we change it (b) we keep it the same (c) we measure it
3. 3.True or false: small pebbles dissolves in water. (a) True (b) False
4. 4.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar stirred well (d) sugar in icy water
5. 5.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
6. 6.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar left unstirred (c) sugar in warm water (d) powdered sugar
7. 7.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
8. 8.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
9. 9.True or false: sugar in icy water dissolves faster. (a) True (b) False
10. 10.🔍 Which is the odd one out? (a) sugar (b) table salt (c) chalk powder (d) glucose powder
11. 11.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) the water turns solid (c) all of it dissolves (d) the sugar turns to salt
12. 12.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
13. 13.⚖️ 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
14. 14.🔍 Which is the odd one out? (a) baking soda (b) small pebbles (c) sugar (d) table salt
15. 15.🔍 Which is the odd one out? (a) sugar (b) small pebbles (c) sand (d) chalk powder
16. 16.🥄 Which of these dissolves in water? (a) sand (b) sugar (c) small pebbles (d) chalk powder
17. 17.True or false: sand does not dissolve in water. (a) False (b) True
18. 18.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it settles at the bottom (c) it dissolves (d) it floats up
19. 19.True or false: chalk powder does not dissolve in water. (a) False (b) True
20. 20.🥄 Which of these does not dissolve in water? (a) sugar (b) table salt (c) glucose powder (d) cooking oil
21. 21.True or false: table salt dissolves in water. (a) True (b) False
22. 22.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a mirror (b) a clock or timer (c) two clear glasses (d) warm water
23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is the one thing we change. (a) True (b) False
24. 24.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar in icy water (d) sugar stirred well
25. 25.⚖️ 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) False (b) True
26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the stirring (b) the amount of sugar (c) the kind of sugar (d) time to dissolve
27. 27.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a clock or timer (c) a teaspoon (d) honey
28. 28.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
29. 29.🥄 Which of these dissolves in water? (a) sawdust (b) chalk powder (c) table salt (d) cooking oil
30. 30.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it spread in the water (c) it vanished for ever (d) it became air
31. 31.🛟 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
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 water temperature (b) the kind of sugar (c) time to dissolve (d) the amount of water
33. 33.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
34. 34.True or false: a mirror is needed for the dissolving test. (a) False (b) True
35. 35.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
36. 36.True or false: powdered sugar dissolves slower. (a) True (b) False
37. 37.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
38. 38.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
39. 39.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is what we measure. (a) True (b) False
40. 40.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve

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