Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 600 · 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 faster? (a) sugar left unstirred (b) sugar in icy water (c) a big sugar cube (d) sugar stirred well
2. 2.True or false: powdered sugar dissolves faster. (a) False (b) True
3. 3.🔮 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
4. 4.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
5. 5.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) True (b) False
6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is the one thing we change. (a) False (b) True
7. 7.True or false: chalk powder dissolves in water. (a) False (b) True
8. 8.🥄 Which of these does not dissolve in water? (a) sugar (b) chalk powder (c) glucose powder (d) food colour
9. 9.True or false: sugar does not dissolve in water. (a) False (b) True
10. 10.⚖️ 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
11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we change it (b) we measure it (c) we keep it the same
12. 12.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
13. 13.True or false: cotton wool is not needed for the dissolving test. (a) False (b) True
14. 14.True or false: small pebbles dissolves in water. (a) True (b) False
15. 15.⚖️ 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
16. 16.True or false: a magnet is needed for the dissolving test. (a) False (b) True
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the kind of sugar (b) the stirring (c) the amount of sugar (d) time to dissolve
18. 18.True or false: sugar is needed for the dissolving test. (a) True (b) False
19. 19.True or false: sugar in icy water dissolves faster. (a) False (b) True
20. 20.⚖️ 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
21. 21.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
22. 22.True or false: food colour does not dissolve in water. (a) False (b) True
23. 23.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it became air (c) it sank as sand (d) it vanished for ever
24. 24.True or false: a big sugar cube dissolves slower. (a) True (b) False
25. 25.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we measure it (b) we change it (c) we keep it the same
26. 26.⚖️ 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
27. 27.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) sugar in icy water (d) powdered sugar
28. 28.⚖️ 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 stirring (c) the kind of sugar (d) the amount of water
29. 29.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a balloon (c) a teaspoon (d) sugar
30. 30.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) slower (c) faster (d) not at all
31. 31.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
32. 32.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
33. 33.True or false: sand dissolves in water. (a) False (b) True
34. 34.⚖️ 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
35. 35.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) two clear glasses (c) a teaspoon (d) cotton wool
36. 36.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) powdered sugar (d) sugar left unstirred
37. 37.True or false: sawdust dissolves in water. (a) False (b) True
38. 38.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
39. 39.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) sugar (c) a clock or timer (d) cold water
40. 40.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) powdered sugar (d) a big sugar cube

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