Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 358 · 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.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the sugar turns to salt (b) all of it dissolves (c) the water turns solid (d) some stays undissolved
2. 2.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) the same (c) faster (d) slower
3. 3.⚖️ 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 kind of sugar (c) the stirring (d) the amount of water
4. 4.🥄 Which of these dissolves in water? (a) cooking oil (b) sawdust (c) small pebbles (d) food colour
5. 5.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is kept the same. (a) False (b) True
7. 7.🔍 Which is the odd one out? (a) sawdust (b) baking soda (c) table salt (d) sugar
8. 8.⚖️ 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
9. 9.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a mirror (c) cold water (d) a comb
10. 10.🔍 Which is the odd one out? (a) small pebbles (b) sand (c) glucose powder (d) chalk powder
11. 11.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) a grown-up (c) nobody needs to (d) the youngest child
12. 12.True or false: sugar in warm water dissolves slower. (a) True (b) False
13. 13.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
14. 14.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
15. 15.⚖️ 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
16. 16.True or false: a mirror is not needed for the dissolving test. (a) True (b) False
17. 17.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) powdered sugar (c) neither of them (d) the sugar cube
18. 18.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
19. 19.True or false: sand does not dissolve in water. (a) True (b) False
20. 20.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a teaspoon (c) cotton wool (d) warm water
21. 21.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) sugar in icy water (d) powdered sugar
22. 22.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) taste it (c) smell it closely (d) look for leftover grains
23. 23.True or false: cotton wool is needed for the dissolving test. (a) True (b) False
24. 24.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
25. 25.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
26. 26.True or false: sugar in icy water dissolves slower. (a) False (b) True
27. 27.🥄 Which of these does not dissolve in water? (a) food colour (b) glucose powder (c) chalk powder (d) sugar
28. 28.🥄 Which of these dissolves slower? (a) a big sugar cube (b) sugar in warm water (c) powdered sugar (d) sugar stirred well
29. 29.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we measure it (b) we keep it the same (c) we change it
31. 31.True or false: a comb is needed for the dissolving test. (a) True (b) False
32. 32.🥄 Which of these dissolves in water? (a) sand (b) small pebbles (c) cooking oil (d) sugar
33. 33.🥄 Which of these does not dissolve in water? (a) baking soda (b) glucose powder (c) food colour (d) sand
34. 34.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we measure it (b) we change it (c) we keep it the same
35. 35.True or false: small pebbles dissolves in water. (a) True (b) False
36. 36.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) a teaspoon (c) a balloon (d) warm water
37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the kind of sugar (b) time to dissolve (c) the stirring (d) the amount of water
38. 38.True or false: powdered sugar dissolves slower. (a) True (b) False
39. 39.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) sugar (c) honey (d) cold water
40. 40.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a comb (c) honey (d) warm water

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