Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 673 · 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.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
2. 2.🔍 Which is the odd one out? (a) baking soda (b) food colour (c) sawdust (d) sugar
3. 3.⚖️ 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
4. 4.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
5. 5.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a teaspoon (c) cotton wool (d) two clear glasses
6. 6.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
7. 7.⚖️ 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 kind of sugar (c) time to dissolve
8. 8.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
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 measure it (b) we change it (c) we keep it the same
10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the kind of sugar (b) time to dissolve (c) the amount of water (d) the water temperature
11. 11.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a comb (c) a balloon (d) cold water
12. 12.True or false: a mirror is needed for the dissolving test. (a) False (b) True
13. 13.🥄 Which of these dissolves in water? (a) table salt (b) chalk powder (c) small pebbles (d) sawdust
14. 14.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a balloon (b) cold water (c) two clear glasses (d) warm water
15. 15.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
16. 16.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
17. 17.True or false: sugar in warm water dissolves faster. (a) True (b) False
18. 18.⚖️ 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 change it (c) we keep it the same
19. 19.⚖️ 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
20. 20.True or false: small pebbles does not dissolve in water. (a) False (b) True
21. 21.🥄 Which of these dissolves in water? (a) small pebbles (b) glucose powder (c) cooking oil (d) chalk powder
22. 22.🔮 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
23. 23.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) warm water (c) cold water (d) a magnet
24. 24.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
25. 25.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) smell it closely (c) poke it with a finger (d) taste it
26. 26.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it spread in the water (c) it sank as sand (d) it vanished for ever
27. 27.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) slower (c) faster (d) not at all
28. 28.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
29. 29.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
30. 30.True or false: warm water is not needed for the dissolving test. (a) False (b) True
31. 31.🔍 Which is the odd one out? (a) small pebbles (b) table salt (c) sugar (d) food colour
32. 32.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) a friend who is running (c) nobody needs to (d) the youngest child
33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the stirring (b) time to dissolve (c) the water temperature
34. 34.🧺 Which of these is needed for the dissolving test? (a) two clear glasses (b) honey (c) a mirror (d) a magnet
35. 35.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
36. 36.🔍 Which is the odd one out? (a) glucose powder (b) sand (c) food colour (d) sugar
37. 37.🥄 Which of these dissolves slower? (a) sugar in icy water (b) sugar in warm water (c) powdered sugar (d) sugar stirred well
38. 38.True or false: baking soda dissolves in water. (a) False (b) True
39. 39.🥄 Which of these dissolves faster? (a) sugar in warm water (b) sugar in icy water (c) a big sugar cube (d) sugar left unstirred
40. 40.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed

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