Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 137 · 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.True or false: a big sugar cube dissolves slower. (a) True (b) False
2. 2.🥄 Which of these does not dissolve in water? (a) sawdust (b) table salt (c) baking soda (d) glucose powder
3. 3.🥄 Which of these does not dissolve in water? (a) food colour (b) sugar (c) cooking oil (d) table salt
4. 4.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) the sugar cube (c) both the same (d) neither of them
5. 5.⚖️ 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 measure it (c) we keep it the same
6. 6.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we keep it the same (b) we change it (c) we measure it
8. 8.🥄 Which of these dissolves slower? (a) sugar stirred well (b) a big sugar cube (c) sugar in warm water (d) powdered sugar
9. 9.🔍 Which is the odd one out? (a) sugar (b) food colour (c) sawdust (d) baking soda
10. 10.🛟 How should you check if the sugar has dissolved? (a) taste it (b) look for leftover grains (c) smell it closely (d) poke it with a finger
11. 11.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
12. 12.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) warm water (c) a comb (d) a teaspoon
13. 13.True or false: baking soda does not dissolve in water. (a) False (b) True
14. 14.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in warm water (c) sugar left unstirred (d) powdered sugar
15. 15.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a comb (c) warm water (d) cold water
16. 16.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
17. 17.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a solution (c) a rainbow (d) a crystal
18. 18.True or false: a teaspoon is needed for the dissolving test. (a) False (b) True
19. 19.🛟 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
20. 20.🔍 Which is the odd one out? (a) sawdust (b) small pebbles (c) glucose powder (d) cooking oil
21. 21.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it spread in the water (c) it became air (d) it vanished for ever
22. 22.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the sugar turns to salt (b) some stays undissolved (c) all of it dissolves (d) the water turns solid
23. 23.True or false: cotton wool is not needed for the dissolving test. (a) True (b) False
24. 24.True or false: sugar does not dissolve in water. (a) True (b) False
25. 25.True or false: two clear glasses is not needed for the dissolving test. (a) False (b) True
26. 26.🥄 Which of these dissolves in water? (a) sawdust (b) sand (c) cooking oil (d) glucose powder
27. 27.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
28. 28.True or false: small pebbles dissolves in water. (a) False (b) True
29. 29.⚖️ 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) the stirring (c) the amount of sugar (d) time to dissolve
30. 30.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a clock or timer (c) a teaspoon (d) a magnet
31. 31.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) powdered sugar (d) sugar left unstirred
32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we measure it (c) we keep it the same
33. 33.🧺 Which of these is needed for the dissolving test? (a) warm water (b) a magnet (c) a comb (d) a balloon
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 change it (b) we measure it (c) we keep it the same
35. 35.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is the one thing we change. (a) False (b) True
36. 36.True or false: a mirror is not needed for the dissolving test. (a) True (b) False
37. 37.⚖️ 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) False (b) True
38. 38.🥄 Which of these dissolves in water? (a) chalk powder (b) sawdust (c) cooking oil (d) baking soda
39. 39.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
40. 40.True or false: powdered sugar dissolves faster. (a) True (b) False

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