Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 44 · 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.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) poke it with a finger (c) taste it (d) smell it closely
2. 2.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
3. 3.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a clock or timer (c) cotton wool (d) honey
4. 4.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
5. 5.🔍 Which is the odd one out? (a) glucose powder (b) sawdust (c) food colour (d) table salt
6. 6.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) cotton wool (c) two clear glasses (d) a clock or timer
7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is the one thing we change. (a) False (b) True
8. 8.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
9. 9.True or false: a big sugar cube dissolves faster. (a) True (b) False
10. 10.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
11. 11.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) the sugar cube (c) both the same (d) powdered sugar
12. 12.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we keep it the same (b) we change it (c) we measure it
13. 13.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a comb (c) a teaspoon (d) two clear glasses
14. 14.True or false: table salt does not dissolve in water. (a) False (b) True
15. 15.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) warm water (c) cold water (d) a comb
16. 16.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
17. 17.True or false: two clear glasses is needed for the dissolving test. (a) True (b) False
18. 18.True or false: sand does not dissolve in water. (a) False (b) True
19. 19.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we keep it the same (b) we change it (c) we measure it
20. 20.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) sugar in warm water (d) sugar left unstirred
21. 21.🧺 Which of these is needed for the dissolving test? (a) a comb (b) warm water (c) a balloon (d) a mirror
22. 22.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) time to dissolve (b) the amount of water (c) the water temperature (d) the stirring
24. 24.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of water (b) the water temperature (c) time to dissolve
25. 25.🔮 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) the water turns solid (c) some stays undissolved (d) all of it dissolves
26. 26.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) honey (c) a teaspoon (d) a comb
27. 27.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) two clear glasses (c) a magnet (d) a clock or timer
28. 28.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
29. 29.True or false: powdered sugar dissolves slower. (a) False (b) True
30. 30.True or false: a magnet is not needed for the dissolving test. (a) False (b) True
31. 31.⚖️ 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 change it (c) we measure it
32. 32.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) sugar likes the dark (c) warm water is thicker (d) cold water is wet
33. 33.True or false: a mirror is needed for the dissolving test. (a) True (b) False
34. 34.True or false: food colour dissolves in water. (a) True (b) False
35. 35.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a clock or timer (c) two clear glasses (d) a mirror
36. 36.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
37. 37.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
38. 38.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
39. 39.True or false: sugar dissolves in water. (a) False (b) True
40. 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) False (b) True

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