Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 665 · 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.🔍 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
2. 2.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
3. 3.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) two clear glasses (c) a teaspoon (d) a magnet
4. 4.True or false: chalk powder does not dissolve in water. (a) True (b) False
5. 5.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a teaspoon (c) a comb (d) warm water
6. 6.🔍 Which is the odd one out? (a) sawdust (b) glucose powder (c) cooking oil (d) small pebbles
7. 7.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) nobody needs to (c) the youngest child (d) a friend who is running
8. 8.True or false: sugar stirred well dissolves slower. (a) False (b) True
9. 9.🔍 Which is the odd one out? (a) sand (b) small pebbles (c) cooking oil (d) table salt
10. 10.True or false: food colour does not dissolve in water. (a) False (b) True
11. 11.🥄 Which of these dissolves slower? (a) sugar in icy water (b) powdered sugar (c) sugar in warm water (d) sugar stirred well
12. 12.True or false: small pebbles does not dissolve in water. (a) False (b) True
13. 13.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is kept the same. (a) False (b) True
15. 15.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) cold water (c) two clear glasses (d) a balloon
16. 16.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a rainbow (c) a solution (d) a magnet
17. 17.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) powdered sugar (c) the sugar cube (d) both the same
18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of sugar (b) time to dissolve (c) the stirring (d) the kind of sugar
19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a balloon (c) a clock or timer (d) cold water
20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the water temperature (b) the amount of water (c) the kind of sugar (d) time to dissolve
21. 21.⚖️ 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
22. 22.⚖️ 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
23. 23.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
24. 24.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
25. 25.⚖️ 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
26. 26.True or false: sugar is not needed for the dissolving test. (a) True (b) False
27. 27.🧺 Which of these is not needed for the dissolving test? (a) a mirror (b) a clock or timer (c) warm water (d) two clear glasses
28. 28.🔮 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 sugar turns to salt (d) the water turns solid
29. 29.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) two clear glasses (c) sugar (d) a mirror
30. 30.⚖️ 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
31. 31.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
32. 32.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
33. 33.True or false: powdered sugar dissolves faster. (a) True (b) False
34. 34.🥄 Which of these dissolves faster? (a) sugar in icy water (b) powdered sugar (c) sugar left unstirred (d) a big sugar cube
35. 35.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
36. 36.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we keep it the same (b) we change it (c) we measure it
37. 37.🥄 Which of these does not dissolve in water? (a) glucose powder (b) table salt (c) food colour (d) sawdust
38. 38.True or false: a big sugar cube dissolves faster. (a) True (b) False
39. 39.True or false: sawdust does not dissolve in water. (a) False (b) True
40. 40.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) the same (c) slower (d) faster

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