Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 344 · 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 cotton wool 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 kind of sugar”? (a) we measure it (b) we keep it the same (c) we change it
3. 3.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
4. 4.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
5. 5.🥄 Which of these dissolves faster? (a) powdered sugar (b) sugar left unstirred (c) a big sugar cube (d) sugar in icy water
6. 6.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) a big sugar cube (d) sugar stirred well
7. 7.⚖️ 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
8. 8.🧺 Which of these is needed for the dissolving test? (a) honey (b) cold water (c) a comb (d) a balloon
9. 9.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
10. 10.True or false: cotton wool is needed for the dissolving test. (a) False (b) True
11. 11.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) smell it closely (c) taste it (d) look for leftover grains
12. 12.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
13. 13.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a friend who is running (c) nobody needs to (d) a grown-up
14. 14.🔍 Which is the odd one out? (a) sand (b) baking soda (c) cooking oil (d) sawdust
15. 15.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
16. 16.⚖️ 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
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) False (b) True
18. 18.🧺 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
19. 19.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it sank as sand (c) it became air (d) it spread in the water
20. 20.True or false: a clock or timer is not needed for the dissolving test. (a) True (b) False
21. 21.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a clock or timer (c) warm water (d) cotton wool
22. 22.⚖️ 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
23. 23.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) two clear glasses (c) cotton wool (d) sugar
24. 24.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in warm water (c) sugar in icy water (d) a big sugar cube
25. 25.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
26. 26.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
27. 27.🔍 Which is the odd one out? (a) sugar (b) baking soda (c) small pebbles (d) table salt
28. 28.True or false: sawdust does not dissolve in water. (a) False (b) True
29. 29.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a teaspoon (c) sugar (d) a mirror
30. 30.⚖️ 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) False (b) True
31. 31.🥄 Which of these dissolves in water? (a) small pebbles (b) sand (c) glucose powder (d) cooking oil
32. 32.🔍 Which is the odd one out? (a) food colour (b) glucose powder (c) sugar (d) cooking oil
33. 33.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
34. 34.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) powdered sugar (c) neither of them (d) both the same
35. 35.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
36. 36.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) not at all (d) faster
37. 37.True or false: sawdust dissolves in water. (a) False (b) True
38. 38.🥄 Which of these dissolves slower? (a) sugar left unstirred (b) sugar in warm water (c) powdered sugar (d) sugar stirred well
39. 39.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) all of it dissolves (c) the water turns solid (d) the sugar turns to salt
40. 40.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it dissolves (c) it floats up (d) it settles at the bottom

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