Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 787 · 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? What do we do with “the water temperature”? (a) we keep it the same (b) we measure it (c) we change it
2. 2.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
3. 3.🥄 Which of these does not dissolve in water? (a) cooking oil (b) table salt (c) sugar (d) food colour
4. 4.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) poke it with a finger (c) smell it closely (d) taste it
5. 5.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) warm water is thicker (c) cold water is wet (d) particles move faster
6. 6.⚖️ 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 stirring (c) the kind of sugar (d) the amount of water
7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of sugar (b) the amount of water (c) time to dissolve (d) the kind of sugar
8. 8.🥄 Which of these does not dissolve in water? (a) baking soda (b) sand (c) glucose powder (d) sugar
9. 9.🔍 Which is the odd one out? (a) food colour (b) baking soda (c) glucose powder (d) chalk powder
10. 10.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) cold water (c) sugar (d) honey
11. 11.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) warm water (c) honey (d) a balloon
12. 12.🥄 Which of these dissolves faster? (a) sugar in warm water (b) sugar left unstirred (c) sugar in icy water (d) a big sugar cube
13. 13.True or false: chalk powder does not dissolve in water. (a) False (b) True
14. 14.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) not at all (d) faster
15. 15.🛟 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
16. 16.🔍 Which is the odd one out? (a) baking soda (b) table salt (c) sand (d) food colour
17. 17.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it spread in the water (c) it became air (d) it vanished for ever
18. 18.True or false: a teaspoon is needed for the dissolving test. (a) True (b) False
19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) sugar (c) two clear glasses (d) honey
20. 20.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
21. 21.⚖️ 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 measure it (c) we keep it the same
22. 22.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is kept the same. (a) False (b) True
24. 24.True or false: a balloon is not needed for the dissolving test. (a) False (b) True
25. 25.🥄 Which of these dissolves faster? (a) sugar stirred well (b) sugar in icy water (c) sugar left unstirred (d) a big sugar cube
26. 26.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
27. 27.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
28. 28.True or false: powdered sugar dissolves slower. (a) False (b) True
29. 29.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cotton wool (b) two clear glasses (c) warm water (d) cold water
30. 30.True or false: food colour dissolves in water. (a) False (b) True
31. 31.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
32. 32.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a balloon (c) a mirror (d) sugar
33. 33.True or false: cold water is not needed for the dissolving test. (a) True (b) False
34. 34.True or false: cooking oil dissolves in water. (a) True (b) False
35. 35.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) a big sugar cube (d) sugar stirred well
36. 36.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
37. 37.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we change it (b) we keep it the same (c) we measure it
39. 39.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we keep it the same (b) we measure it (c) we change it
40. 40.True or false: cold water is needed for the dissolving test. (a) False (b) True

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