Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 621 · 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.⚖️ 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 water (b) the kind of sugar (c) time to dissolve (d) the water temperature
2. 2.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a grown-up (c) a friend who is running (d) the youngest child
3. 3.True or false: two clear glasses is needed for the dissolving test. (a) True (b) False
4. 4.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
5. 5.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
6. 6.🔍 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
7. 7.True or false: powdered sugar dissolves slower. (a) False (b) True
8. 8.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) the sugar cube (c) powdered sugar (d) neither of them
9. 9.⚖️ 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 measure it (c) we keep it the same
10. 10.True or false: sugar in warm water dissolves slower. (a) False (b) True
11. 11.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
12. 12.True or false: sugar stirred well dissolves faster. (a) True (b) False
13. 13.🥄 Which of these dissolves slower? (a) sugar in icy water (b) sugar stirred well (c) powdered sugar (d) sugar in warm water
14. 14.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
15. 15.🛟 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
16. 16.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
17. 17.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) a big sugar cube (d) powdered sugar
18. 18.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) a big sugar cube (d) powdered sugar
19. 19.🔍 Which is the odd one out? (a) sugar (b) sand (c) small pebbles (d) cooking oil
20. 20.True or false: sugar stirred well dissolves slower. (a) False (b) True
21. 21.🥄 Which of these does not dissolve in water? (a) cooking oil (b) table salt (c) food colour (d) baking soda
22. 22.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
23. 23.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in warm water (c) powdered sugar (d) sugar left unstirred
24. 24.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
25. 25.True or false: warm water is needed for the dissolving test. (a) True (b) False
26. 26.True or false: sand dissolves in water. (a) True (b) False
27. 27.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) all of it dissolves (c) the sugar turns to salt (d) some stays undissolved
28. 28.🥄 Which of these does not dissolve in water? (a) food colour (b) sawdust (c) baking soda (d) sugar
29. 29.🔍 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
30. 30.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a balloon (b) cold water (c) warm water (d) two clear glasses
31. 31.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a comb (b) two clear glasses (c) cold water (d) sugar
32. 32.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar in icy water (d) sugar in warm water
33. 33.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
34. 34.🧺 Which of these is needed for the dissolving test? (a) a clock or timer (b) a mirror (c) cotton wool (d) a comb
35. 35.🧺 Which of these is not needed for the dissolving test? (a) a magnet (b) two clear glasses (c) a teaspoon (d) warm water
36. 36.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) sugar likes the dark (c) cold water is wet (d) particles move faster
37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) time to dissolve (b) the water temperature (c) the amount of water
38. 38.⚖️ 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) True (b) False
39. 39.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
40. 40.True or false: sugar is not needed for the dissolving test. (a) True (b) False

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