Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 986 · 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.🔍 Sand is stirred into water. What do you see after a while? (a) it settles at the bottom (b) it floats up (c) it turns blue (d) it dissolves
2. 2.🔍 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
3. 3.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we keep it the same (b) we change it (c) we measure it
5. 5.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
6. 6.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
7. 7.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
8. 8.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) faster (c) the same (d) not at all
9. 9.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
10. 10.⚖️ 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
11. 11.True or false: small pebbles dissolves in water. (a) True (b) False
12. 12.True or false: sand dissolves in water. (a) False (b) True
13. 13.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) add more water (c) stir it more (d) let the water evaporate
14. 14.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) two clear glasses (c) sugar (d) a teaspoon
15. 15.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a crystal (c) a rainbow (d) a solution
16. 16.🔍 Which is the odd one out? (a) small pebbles (b) chalk powder (c) sand (d) glucose powder
17. 17.True or false: warm water is not needed for the dissolving test. (a) True (b) False
18. 18.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) the water turns solid (c) the sugar turns to salt (d) some stays undissolved
19. 19.True or false: sand does not dissolve in water. (a) True (b) False
20. 20.🥄 Which of these dissolves slower? (a) sugar stirred well (b) powdered sugar (c) sugar in warm water (d) sugar left unstirred
21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the stirring (b) the kind of sugar (c) the amount of water (d) time to dissolve
22. 22.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
23. 23.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
24. 24.True or false: a big sugar cube dissolves faster. (a) False (b) True
25. 25.🥄 Which of these dissolves faster? (a) powdered sugar (b) sugar left unstirred (c) a big sugar cube (d) sugar in icy water
26. 26.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) cold water (c) a magnet (d) a teaspoon
27. 27.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) a balloon (c) two clear glasses (d) a teaspoon
28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is what we measure. (a) True (b) False
29. 29.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
30. 30.🔍 Which is the odd one out? (a) sawdust (b) table salt (c) sugar (d) glucose powder
31. 31.⚖️ 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
32. 32.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) powdered sugar (d) a big sugar cube
33. 33.True or false: sugar in icy water dissolves faster. (a) True (b) False
34. 34.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) sugar in warm water (d) a big sugar cube
35. 35.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) two clear glasses (c) a magnet (d) cold water
36. 36.🛟 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
37. 37.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
38. 38.🔍 Which is the odd one out? (a) sawdust (b) chalk powder (c) table salt (d) cooking oil
39. 39.True or false: two clear glasses is needed for the dissolving test. (a) False (b) True
40. 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we change it (b) we keep it the same (c) we measure it

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