Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 195 · 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: cotton wool is needed for the dissolving test. (a) True (b) False
2. 2.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
3. 3.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a mirror (c) a teaspoon (d) two clear glasses
4. 4.⚖️ 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) True (b) False
5. 5.🔮 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
6. 6.🥄 Which of these does not dissolve in water? (a) food colour (b) sawdust (c) table salt (d) baking soda
7. 7.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
8. 8.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) time to dissolve (b) the amount of water (c) the water temperature
9. 9.🛟 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
10. 10.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
11. 11.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
12. 12.🧺 Which of these is needed for the dissolving test? (a) honey (b) a teaspoon (c) a comb (d) cotton wool
13. 13.⚖️ 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 water (c) the water temperature (d) the stirring
14. 14.True or false: sugar in icy water dissolves faster. (a) False (b) True
15. 15.⚖️ 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) True (b) False
16. 16.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
17. 17.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
18. 18.🔍 Which is the odd one out? (a) sawdust (b) small pebbles (c) chalk powder (d) glucose powder
19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a comb (b) sugar (c) cold water (d) a teaspoon
20. 20.True or false: sugar in icy water dissolves slower. (a) False (b) True
21. 21.🧺 Which of these is needed for the dissolving test? (a) honey (b) a magnet (c) cotton wool (d) warm water
22. 22.🛟 How should you check if the sugar has dissolved? (a) taste it (b) smell it closely (c) look for leftover grains (d) poke it with a finger
23. 23.🧺 Which of these is needed for the dissolving test? (a) honey (b) a magnet (c) a comb (d) two clear glasses
24. 24.🔍 Which is the odd one out? (a) sawdust (b) chalk powder (c) table salt (d) cooking oil
25. 25.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
26. 26.True or false: a balloon is not needed for the dissolving test. (a) True (b) False
27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we measure it (b) we keep it the same (c) we change it
28. 28.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it dissolves (c) it settles at the bottom (d) it floats up
29. 29.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
30. 30.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it became air (c) it vanished for ever (d) it sank as sand
31. 31.🔮 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
32. 32.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
33. 33.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
34. 34.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) two clear glasses (c) warm water (d) a balloon
35. 35.🔍 Which is the odd one out? (a) baking soda (b) sugar (c) food colour (d) chalk powder
36. 36.⚖️ 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
37. 37.🥄 Which of these does not dissolve in water? (a) food colour (b) glucose powder (c) table salt (d) chalk powder
38. 38.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) faster (c) the same (d) slower
39. 39.⚖️ 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
40. 40.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a magnet (c) warm water (d) sugar

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