Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 732 · 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 of these dissolves in water? (a) sand (b) sugar (c) sawdust (d) chalk powder
2. 2.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) powdered sugar (c) both the same (d) the sugar cube
3. 3.📘 What do we call water with sugar dissolved in it? (a) a solution (b) a crystal (c) a rainbow (d) a magnet
4. 4.🧺 Which of these is not needed for the dissolving test? (a) a comb (b) a teaspoon (c) cold water (d) sugar
5. 5.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
6. 6.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
7. 7.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
8. 8.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
9. 9.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we change it (b) we measure it (c) we keep it the same
11. 11.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) all of it dissolves (c) the sugar turns to salt (d) some stays undissolved
12. 12.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) the youngest child (c) nobody needs to (d) a grown-up
13. 13.🔍 Which is the odd one out? (a) sand (b) table salt (c) sawdust (d) cooking oil
14. 14.True or false: a comb is not needed for the dissolving test. (a) False (b) True
15. 15.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) warm water (c) a magnet (d) two clear glasses
16. 16.True or false: sand does not dissolve in water. (a) True (b) False
17. 17.🔍 Which is the odd one out? (a) chalk powder (b) cooking oil (c) small pebbles (d) baking soda
18. 18.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
19. 19.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) a big sugar cube (d) sugar in warm water
20. 20.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
21. 21.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
22. 22.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it vanished for ever (c) it sank as sand (d) it became air
23. 23.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) two clear glasses (c) a magnet (d) sugar
24. 24.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) cotton wool (c) sugar (d) two clear glasses
25. 25.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
26. 26.True or false: chalk powder does not dissolve in water. (a) True (b) False
27. 27.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
28. 28.True or false: sugar stirred well dissolves slower. (a) True (b) False
29. 29.⚖️ 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
30. 30.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it floats up (c) it dissolves (d) it settles at the bottom
31. 31.True or false: baking soda dissolves in water. (a) False (b) True
32. 32.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
33. 33.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
34. 34.🔍 How can you get the salt back from salty water? (a) let the water evaporate (b) keep it in a fridge (c) add more water (d) stir it more
35. 35.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) sugar left unstirred (d) sugar in warm water
36. 36.🥄 Which of these does not dissolve in water? (a) glucose powder (b) sugar (c) cooking oil (d) baking soda
37. 37.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a comb (c) warm water (d) honey
38. 38.True or false: food colour dissolves in water. (a) False (b) True
39. 39.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
40. 40.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed

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