Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 401 · 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.🔍 Which is the odd one out? (a) sand (b) small pebbles (c) table salt (d) chalk powder
2. 2.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
3. 3.⚖️ 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 keep it the same (c) we change it
4. 4.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
5. 5.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) both the same (c) neither of them (d) the sugar cube
6. 6.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) warm water (c) cold water (d) sugar
7. 7.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) some stays undissolved (c) the water turns solid (d) the sugar turns to salt
8. 8.🥄 Which of these dissolves in water? (a) sugar (b) chalk powder (c) cooking oil (d) sand
9. 9.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
10. 10.🧺 Which of these is needed for the dissolving test? (a) warm water (b) honey (c) cotton wool (d) a balloon
11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we measure it (b) we change it (c) we keep it the same
12. 12.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
13. 13.🔍 Sand is stirred into water. What do you see after a while? (a) it settles at the bottom (b) it turns blue (c) it dissolves (d) it floats up
14. 14.True or false: honey is not needed for the dissolving test. (a) True (b) False
15. 15.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
16. 16.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) particles move faster (c) warm water is thicker (d) sugar likes the dark
17. 17.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) a magnet (c) warm water (d) sugar
18. 18.🛟 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
19. 19.True or false: a mirror is needed for the dissolving test. (a) False (b) True
20. 20.True or false: sugar left unstirred dissolves faster. (a) True (b) False
21. 21.True or false: sugar in warm water dissolves slower. (a) False (b) True
22. 22.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a comb (c) cold water (d) a teaspoon
23. 23.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) warm water (c) cold water (d) cotton wool
24. 24.🧺 Which of these is needed for the dissolving test? (a) sugar (b) a comb (c) a mirror (d) cotton wool
25. 25.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a balloon (c) a teaspoon (d) a clock or timer
26. 26.True or false: sawdust does not dissolve in water. (a) True (b) False
27. 27.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
28. 28.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
29. 29.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
30. 30.🥄 Which of these does not dissolve in water? (a) sugar (b) glucose powder (c) food colour (d) cooking oil
31. 31.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
32. 32.🔍 Which is the odd one out? (a) glucose powder (b) cooking oil (c) sand (d) chalk powder
33. 33.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) powdered sugar (d) a big sugar cube
34. 34.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
35. 35.True or false: sugar does not dissolve in water. (a) True (b) False
36. 36.⚖️ 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
37. 37.⚖️ 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
38. 38.⚖️ 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) time to dissolve (c) the amount of water
39. 39.⚖️ 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
40. 40.True or false: a comb is needed for the dissolving test. (a) False (b) True

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