Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 546 · 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.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) powdered sugar (c) neither of them (d) both the same
2. 2.🥄 Which of these dissolves faster? (a) sugar in warm water (b) sugar in icy water (c) sugar left unstirred (d) a big sugar cube
3. 3.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) look for leftover grains (c) smell it closely (d) taste it
4. 4.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) nobody needs to (c) the youngest child (d) a grown-up
5. 5.🔍 Which is the odd one out? (a) sand (b) baking soda (c) food colour (d) glucose powder
6. 6.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) the water turns solid (c) all of it dissolves (d) the sugar turns to salt
7. 7.🔍 Which is the odd one out? (a) table salt (b) sugar (c) glucose powder (d) small pebbles
8. 8.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
9. 9.True or false: a teaspoon is needed for the dissolving test. (a) True (b) False
10. 10.True or false: a clock or timer is needed for the dissolving test. (a) True (b) False
11. 11.True or false: chalk powder does not dissolve in water. (a) False (b) True
12. 12.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
13. 13.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
14. 14.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
15. 15.True or false: glucose powder dissolves in water. (a) False (b) True
16. 16.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
17. 17.True or false: a comb is not needed for the dissolving test. (a) False (b) True
18. 18.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it floats up (c) it settles at the bottom (d) it turns blue
19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a teaspoon (c) a comb (d) sugar
20. 20.🔍 Which is the odd one out? (a) sugar (b) baking soda (c) sawdust (d) food colour
21. 21.🥄 Which of these dissolves faster? (a) a big sugar cube (b) powdered sugar (c) sugar left unstirred (d) sugar in icy water
22. 22.⚖️ 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
23. 23.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) a comb (c) a clock or timer (d) warm water
24. 24.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it became air (c) it spread in the water (d) it vanished for ever
25. 25.True or false: food colour does not dissolve in water. (a) False (b) True
26. 26.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
27. 27.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar left unstirred (d) sugar stirred well
28. 28.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
29. 29.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) the same (c) slower (d) faster
30. 30.🥄 Which of these dissolves slower? (a) sugar stirred well (b) a big sugar cube (c) powdered sugar (d) sugar in warm water
31. 31.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a magnet (c) sugar (d) a comb
32. 32.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
33. 33.⚖️ 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) time to dissolve
34. 34.True or false: sugar left unstirred dissolves slower. (a) False (b) True
35. 35.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) two clear glasses (c) a clock or timer (d) a mirror
36. 36.🥄 Which of these dissolves in water? (a) chalk powder (b) sawdust (c) glucose powder (d) sand
37. 37.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) honey (c) sugar (d) cold water
38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is the one thing we change. (a) True (b) False
39. 39.⚖️ 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
40. 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) time to dissolve (b) the amount of sugar (c) the kind of sugar (d) the stirring

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