Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 488 · 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: cold water is not needed for the dissolving test. (a) False (b) True
2. 2.🥄 Which of these does not dissolve in water? (a) baking soda (b) food colour (c) glucose powder (d) sawdust
3. 3.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) the sugar turns to salt (c) all of it dissolves (d) the water turns solid
4. 4.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) look for leftover grains (c) smell it closely (d) taste it
5. 5.True or false: warm water is not needed for the dissolving test. (a) False (b) True
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.🔍 Which is the odd one out? (a) baking soda (b) glucose powder (c) sand (d) food colour
8. 8.🥄 Which of these dissolves faster? (a) powdered sugar (b) sugar in icy water (c) a big sugar cube (d) sugar left unstirred
9. 9.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
10. 10.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
11. 11.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it became air (c) it sank as sand (d) it vanished for ever
12. 12.True or false: cooking oil does not dissolve in water. (a) False (b) True
13. 13.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
14. 14.⚖️ 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
15. 15.🧺 Which of these is not needed for the dissolving test? (a) a comb (b) sugar (c) a teaspoon (d) two clear glasses
16. 16.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) a teaspoon (c) cold water (d) a mirror
17. 17.🥄 Which of these does not dissolve in water? (a) baking soda (b) sugar (c) cooking oil (d) table salt
18. 18.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
19. 19.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) slower (c) the same (d) faster
20. 20.🔍 Which is the odd one out? (a) table salt (b) food colour (c) chalk powder (d) baking soda
21. 21.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
22. 22.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) a teaspoon (c) honey (d) cold water
23. 23.🔍 Which is the odd one out? (a) baking soda (b) table salt (c) cooking oil (d) sugar
24. 24.🧺 Which of these is not needed for the dissolving test? (a) a magnet (b) sugar (c) a teaspoon (d) warm water
25. 25.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
26. 26.True or false: warm water is needed for the dissolving test. (a) True (b) False
27. 27.🔍 Which is the odd one out? (a) small pebbles (b) baking soda (c) sugar (d) glucose powder
28. 28.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar in icy water (d) sugar stirred well
29. 29.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar left unstirred (c) powdered sugar (d) sugar stirred well
30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we measure it (b) we keep it the same (c) we change it
31. 31.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a clock or timer (c) a balloon (d) warm water
32. 32.⚖️ 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
33. 33.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) two clear glasses (c) a comb (d) a teaspoon
34. 34.🥄 Which of these dissolves in water? (a) chalk powder (b) sand (c) cooking oil (d) table salt
35. 35.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) cotton wool (c) two clear glasses (d) warm water
36. 36.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) the youngest child (c) a grown-up (d) nobody needs to
37. 37.True or false: two clear glasses is needed for the dissolving test. (a) True (b) False
38. 38.True or false: baking soda dissolves in water. (a) False (b) True
39. 39.True or false: sawdust dissolves in water. (a) False (b) True
40. 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of sugar (b) time to dissolve (c) the water temperature

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