Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 641 · 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.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it spread in the water (c) it sank as sand (d) it became air
2. 2.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it settles at the bottom (c) it floats up (d) it dissolves
3. 3.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a clock or timer (c) sugar (d) a mirror
4. 4.🥄 Which of these does not dissolve in water? (a) table salt (b) food colour (c) chalk powder (d) sugar
5. 5.⚖️ 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) time to dissolve (c) the water temperature
6. 6.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a comb (c) a teaspoon (d) a clock or timer
7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is the one thing we change. (a) False (b) True
8. 8.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a balloon (c) a teaspoon (d) two clear glasses
9. 9.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
10. 10.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
11. 11.⚖️ 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 keep it the same (c) we change it
12. 12.🔍 Which is the odd one out? (a) cooking oil (b) small pebbles (c) food colour (d) sand
13. 13.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
14. 14.🥄 Which of these dissolves in water? (a) sawdust (b) food colour (c) chalk powder (d) sand
15. 15.🔍 Which is the odd one out? (a) cooking oil (b) small pebbles (c) chalk powder (d) glucose powder
16. 16.🛟 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
17. 17.🔍 Which is the odd one out? (a) sand (b) cooking oil (c) baking soda (d) chalk powder
18. 18.True or false: sugar left unstirred dissolves faster. (a) False (b) True
19. 19.⚖️ 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) True (b) False
20. 20.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
21. 21.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) powdered sugar (c) both the same (d) neither of them
22. 22.True or false: a clock or timer is needed for the dissolving test. (a) False (b) True
23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we measure it (b) we keep it the same (c) we change it
24. 24.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) sugar in warm water (d) a big sugar cube
25. 25.🥄 Which of these dissolves slower? (a) sugar in icy water (b) sugar stirred well (c) sugar in warm water (d) powdered sugar
26. 26.True or false: sugar does not dissolve in water. (a) False (b) True
27. 27.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) sugar (c) warm water (d) a magnet
28. 28.True or false: a comb is not 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 water temperature is kept the same. (a) True (b) False
30. 30.True or false: glucose powder does not dissolve in water. (a) False (b) True
31. 31.True or false: cold water is not needed for the dissolving test. (a) True (b) False
32. 32.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
33. 33.True or false: chalk powder dissolves in water. (a) True (b) False
34. 34.⚖️ 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
35. 35.True or false: sawdust does not dissolve in water. (a) False (b) True
36. 36.⚖️ 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) the amount of sugar (d) the stirring
37. 37.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
38. 38.True or false: powdered sugar dissolves faster. (a) True (b) False
39. 39.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) smell it closely (c) look for leftover grains (d) taste it
40. 40.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water

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