Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 937 · 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.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) two clear glasses (c) cotton wool (d) a teaspoon
2. 2.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
3. 3.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a comb (c) a teaspoon (d) cold water
4. 4.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
5. 5.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) cold water (c) a clock or timer (d) honey
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 stirring (b) time to dissolve (c) the water temperature (d) the kind of sugar
7. 7.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
8. 8.🔍 Which is the odd one out? (a) sawdust (b) sand (c) chalk powder (d) glucose powder
9. 9.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
10. 10.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) two clear glasses (c) warm water (d) a mirror
11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we keep it the same (b) we change it (c) we measure it
12. 12.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
13. 13.⚖️ 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) False (b) True
14. 14.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a balloon (b) two clear glasses (c) sugar (d) cold water
15. 15.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
16. 16.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
17. 17.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a clock or timer (c) sugar (d) a magnet
18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the water temperature (b) the stirring (c) time to dissolve
19. 19.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) faster (c) slower (d) the same
20. 20.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) neither of them (c) powdered sugar (d) both the same
21. 21.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
22. 22.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) smell it closely (c) taste it (d) poke it with a finger
23. 23.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
24. 24.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
25. 25.🔍 Which is the odd one out? (a) sugar (b) baking soda (c) glucose powder (d) chalk powder
26. 26.🥄 Which of these does not dissolve in water? (a) sugar (b) glucose powder (c) baking soda (d) cooking oil
27. 27.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) sugar stirred well (d) sugar left unstirred
28. 28.True or false: sugar is not needed for the dissolving test. (a) False (b) True
29. 29.🥄 Which of these dissolves slower? (a) sugar stirred well (b) a big sugar cube (c) sugar in warm water (d) powdered sugar
30. 30.True or false: a balloon is needed for the dissolving test. (a) False (b) True
31. 31.True or false: cotton wool is not needed for the dissolving test. (a) False (b) True
32. 32.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a grown-up (c) the youngest child (d) a friend who is running
33. 33.🔍 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
34. 34.🔍 Which is the odd one out? (a) food colour (b) sugar (c) glucose powder (d) cooking oil
35. 35.🧺 Which of these is needed for the dissolving test? (a) warm water (b) a mirror (c) a magnet (d) a balloon
36. 36.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
37. 37.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar left unstirred (c) powdered sugar (d) sugar stirred well
38. 38.True or false: honey is not needed for the dissolving test. (a) True (b) False
39. 39.True or false: a clock or timer is not needed for the dissolving test. (a) True (b) False
40. 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is what we measure. (a) True (b) False

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