Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 89 · 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 a big sugar cube dissolve faster or slower? (a) slower (b) faster
2. 2.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) warm water (c) a balloon (d) a clock or timer
3. 3.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
4. 4.True or false: sugar stirred well dissolves faster. (a) False (b) True
5. 5.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
6. 6.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
7. 7.🥄 Which of these does not dissolve in water? (a) baking soda (b) sugar (c) sand (d) food colour
8. 8.True or false: sugar stirred well dissolves slower. (a) True (b) False
9. 9.🥄 Which of these does not dissolve in water? (a) cooking oil (b) glucose powder (c) sugar (d) food colour
10. 10.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar stirred well (c) a big sugar cube (d) sugar left unstirred
11. 11.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) both the same (c) neither of them (d) the sugar cube
12. 12.🥄 Which of these dissolves slower? (a) a big sugar cube (b) sugar stirred well (c) sugar in warm water (d) powdered sugar
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 water temperature (b) time to dissolve (c) the amount of sugar (d) the amount of water
14. 14.True or false: powdered sugar dissolves slower. (a) False (b) True
15. 15.🛟 How should you check if the sugar has dissolved? (a) taste it (b) poke it with a finger (c) smell it closely (d) look for leftover grains
16. 16.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
17. 17.🥄 Which of these dissolves in water? (a) sugar (b) cooking oil (c) small pebbles (d) sand
18. 18.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) all of it dissolves (c) the sugar turns to salt (d) some stays undissolved
19. 19.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
20. 20.🔍 Which is the odd one out? (a) sugar (b) sand (c) table salt (d) glucose powder
21. 21.🥄 Which of these does not dissolve in water? (a) sugar (b) chalk powder (c) glucose powder (d) food colour
22. 22.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it settles at the bottom (c) it turns blue (d) it floats up
23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the kind of sugar (b) time to dissolve (c) the water temperature
24. 24.True or false: a clock or timer is not needed for the dissolving test. (a) True (b) False
25. 25.🥄 Which of these does not dissolve in water? (a) sugar (b) food colour (c) sawdust (d) glucose powder
26. 26.🔍 Which is the odd one out? (a) sand (b) small pebbles (c) cooking oil (d) glucose powder
27. 27.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
28. 28.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
29. 29.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a rainbow (c) a crystal (d) a solution
30. 30.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) cold water (c) a teaspoon (d) a comb
31. 31.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it sank as sand (c) it vanished for ever (d) it became air
32. 32.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a magnet (c) sugar (d) honey
33. 33.🔍 Which is the odd one out? (a) food colour (b) glucose powder (c) sugar (d) chalk powder
34. 34.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a friend who is running (c) a grown-up (d) the youngest child
35. 35.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) not at all (c) the same (d) slower
36. 36.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cotton wool (b) a teaspoon (c) warm water (d) two clear glasses
37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) True (b) False
38. 38.True or false: sugar in icy water dissolves faster. (a) False (b) True
39. 39.🧺 Which of these is needed for the dissolving test? (a) cold water (b) cotton wool (c) a balloon (d) a comb
40. 40.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower

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