Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 192 · 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.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
2. 2.True or false: sugar left unstirred dissolves faster. (a) False (b) True
3. 3.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a teaspoon (c) a mirror (d) cotton wool
4. 4.🥄 Which of these dissolves in water? (a) sawdust (b) cooking oil (c) chalk powder (d) glucose powder
5. 5.True or false: sugar in warm water dissolves slower. (a) False (b) True
6. 6.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
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) the water turns solid (c) some stays undissolved (d) the sugar turns to salt
8. 8.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
9. 9.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we change it (b) we keep it the same (c) we measure it
10. 10.True or false: honey is not needed for the dissolving test. (a) False (b) True
11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is the one thing we change. (a) True (b) False
12. 12.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) nobody needs to (c) a grown-up (d) the youngest child
13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the amount of water (b) the water temperature (c) the amount of sugar (d) the stirring
14. 14.🔍 Which is the odd one out? (a) table salt (b) food colour (c) glucose powder (d) small pebbles
15. 15.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) sugar left unstirred (d) sugar stirred well
16. 16.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a balloon (c) a teaspoon (d) a clock or timer
17. 17.🥄 Which of these dissolves in water? (a) table salt (b) sawdust (c) sand (d) cooking oil
18. 18.⚖️ 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 water temperature
19. 19.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
20. 20.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
21. 21.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) neither of them (c) the sugar cube (d) powdered sugar
22. 22.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) poke it with a finger (c) look for leftover grains (d) taste it
23. 23.🧺 Which of these is not needed for the dissolving test? (a) a balloon (b) warm water (c) sugar (d) a clock or timer
24. 24.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a solution (c) a crystal (d) a rainbow
25. 25.True or false: powdered sugar dissolves faster. (a) False (b) True
26. 26.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
27. 27.🔍 Which is the odd one out? (a) table salt (b) chalk powder (c) sawdust (d) cooking oil
28. 28.⚖️ 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 stirring
29. 29.True or false: small pebbles dissolves in water. (a) True (b) False
30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) False (b) True
31. 31.🔍 Which is the odd one out? (a) chalk powder (b) baking soda (c) sugar (d) food colour
32. 32.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
33. 33.True or false: cotton wool is not needed for the dissolving test. (a) True (b) False
34. 34.⚖️ 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 change it (c) we keep it the same
35. 35.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) warm water (c) a teaspoon (d) cotton wool
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 measure it (b) we change it (c) we keep it the same
37. 37.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) not at all (c) faster (d) slower
38. 38.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
39. 39.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it spread in the water (c) it sank as sand (d) it vanished for ever
40. 40.True or false: a comb is needed for the dissolving test. (a) False (b) True

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