Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 445 · 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.True or false: sugar stirred well dissolves faster. (a) False (b) True
2. 2.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) sugar (c) a balloon (d) two clear glasses
3. 3.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it turns blue (c) it settles at the bottom (d) it dissolves
4. 4.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) powdered sugar (c) neither of them (d) the sugar cube
5. 5.True or false: sugar stirred well dissolves slower. (a) False (b) True
6. 6.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) warm water (c) a teaspoon (d) cotton wool
7. 7.🥄 Which of these dissolves in water? (a) chalk powder (b) small pebbles (c) sugar (d) sawdust
8. 8.🔍 Which is the odd one out? (a) small pebbles (b) sand (c) sugar (d) chalk powder
9. 9.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) two clear glasses (c) a clock or timer (d) a balloon
10. 10.⚖️ 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 keep it the same (c) we measure it
11. 11.True or false: chalk powder does not dissolve in water. (a) True (b) False
12. 12.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
13. 13.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar stirred well (d) sugar in icy water
14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is the one thing we change. (a) True (b) False
15. 15.True or false: a balloon is needed for the dissolving test. (a) True (b) False
16. 16.🥄 Which of these does not dissolve in water? (a) glucose powder (b) sugar (c) table salt (d) cooking oil
17. 17.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) slower (c) faster (d) not at all
18. 18.🧺 Which of these is needed for the dissolving test? (a) honey (b) a teaspoon (c) a balloon (d) a mirror
19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) sugar (c) honey (d) a teaspoon
20. 20.True or false: food colour dissolves in water. (a) True (b) False
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 vanished for ever (d) it spread in the water
22. 22.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
23. 23.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
24. 24.🥄 Which of these does not dissolve in water? (a) sawdust (b) baking soda (c) glucose powder (d) food colour
25. 25.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a balloon (c) a comb (d) cold water
26. 26.⚖️ 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
27. 27.True or false: cooking oil dissolves in water. (a) False (b) True
28. 28.🔮 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) the sugar turns to salt (d) some stays undissolved
29. 29.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
30. 30.True or false: warm water is not needed for the dissolving test. (a) True (b) False
31. 31.⚖️ 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
32. 32.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) nobody needs to (c) a grown-up (d) the youngest child
33. 33.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a teaspoon (c) a comb (d) two clear glasses
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 measure it (b) we change it (c) we keep it the same
35. 35.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
36. 36.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
37. 37.True or false: a balloon is not needed for the dissolving test. (a) False (b) True
38. 38.⚖️ 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
39. 39.⚖️ 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
40. 40.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) two clear glasses (c) a balloon (d) a magnet

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