Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 806 · 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.🔮 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 sugar turns to salt (c) the water turns solid (d) some stays undissolved
2. 2.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) a teaspoon (c) honey (d) sugar
3. 3.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a balloon (c) a comb (d) a clock or timer
4. 4.True or false: sugar is not needed for the dissolving test. (a) False (b) True
5. 5.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
6. 6.🥄 Which of these dissolves in water? (a) sawdust (b) cooking oil (c) chalk powder (d) baking soda
7. 7.⚖️ 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 change it (c) we measure it
8. 8.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
9. 9.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) cotton wool (c) cold water (d) a teaspoon
10. 10.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
11. 11.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) neither of them (c) both the same (d) powdered sugar
12. 12.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it settles at the bottom (c) it dissolves (d) it turns blue
13. 13.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
14. 14.⚖️ 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 change it (c) we measure it
15. 15.⚖️ 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
16. 16.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) warm water (c) honey (d) two clear glasses
17. 17.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a teaspoon (c) sugar (d) a balloon
18. 18.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
19. 19.🥄 Which of these does not dissolve in water? (a) glucose powder (b) table salt (c) food colour (d) cooking oil
20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) time to dissolve (b) the stirring (c) the amount of sugar (d) the water temperature
21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the amount of sugar (b) the stirring (c) the amount of water (d) the water temperature
22. 22.🧺 Which of these is not needed for the dissolving test? (a) cotton wool (b) a clock or timer (c) two clear glasses (d) sugar
23. 23.True or false: sugar in warm water dissolves faster. (a) True (b) False
24. 24.🧺 Which of these is needed for the dissolving test? (a) two clear glasses (b) a mirror (c) cotton wool (d) honey
25. 25.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a magnet (c) warm water (d) two clear glasses
26. 26.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it sank as sand (c) it spread in the water (d) it vanished for ever
27. 27.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar left unstirred (c) powdered sugar (d) sugar in warm water
28. 28.True or false: two clear glasses is needed for the dissolving test. (a) False (b) True
29. 29.⚖️ 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) False (b) True
30. 30.🔍 Which is the odd one out? (a) chalk powder (b) sawdust (c) cooking oil (d) food colour
31. 31.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar stirred well (d) sugar left unstirred
32. 32.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
33. 33.True or false: a clock or timer is not needed for the dissolving test. (a) True (b) False
34. 34.🥄 Which of these does not dissolve in water? (a) table salt (b) glucose powder (c) baking soda (d) sawdust
35. 35.True or false: cold water is not needed for the dissolving test. (a) True (b) False
36. 36.🧺 Which of these is needed for the dissolving test? (a) honey (b) cotton wool (c) a mirror (d) sugar
37. 37.True or false: sugar does not dissolve in water. (a) True (b) False
38. 38.True or false: small pebbles dissolves in water. (a) True (b) False
39. 39.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
40. 40.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water

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