Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 457 · 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.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we measure it (b) we keep it the same (c) we change it
2. 2.🥄 Which of these dissolves in water? (a) sawdust (b) small pebbles (c) sugar (d) chalk powder
3. 3.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar left unstirred (c) sugar in warm water (d) powdered sugar
4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the stirring (b) the amount of sugar (c) the water temperature (d) the kind of sugar
5. 5.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
6. 6.True or false: two clear glasses is needed for the dissolving test. (a) True (b) False
7. 7.True or false: cotton wool is needed for the dissolving test. (a) True (b) False
8. 8.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) two clear glasses (c) a mirror (d) cold water
9. 9.True or false: food colour does not dissolve in water. (a) True (b) False
10. 10.True or false: a mirror is needed for the dissolving test. (a) False (b) True
11. 11.True or false: sand does not dissolve in water. (a) False (b) True
12. 12.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a mirror (c) a teaspoon (d) a magnet
13. 13.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) nobody needs to (c) a friend who is running (d) the youngest child
14. 14.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it sank as sand (c) it vanished for ever (d) it spread in the water
15. 15.🔍 How can you get the salt back from salty water? (a) stir it more (b) let the water evaporate (c) keep it in a fridge (d) add more water
16. 16.True or false: cold water is needed for the dissolving test. (a) False (b) True
17. 17.🧺 Which of these is not needed for the dissolving test? (a) a balloon (b) two clear glasses (c) a teaspoon (d) warm water
18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the water temperature (b) the amount of water (c) time to dissolve
19. 19.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
20. 20.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
21. 21.🥄 Which of these does not dissolve in water? (a) baking soda (b) chalk powder (c) food colour (d) sugar
22. 22.🥄 Which of these dissolves in water? (a) glucose powder (b) small pebbles (c) sawdust (d) chalk powder
23. 23.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
24. 24.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
25. 25.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar in warm water (c) a big sugar cube (d) sugar left unstirred
26. 26.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) warm water is thicker (c) cold water is wet (d) sugar likes the dark
27. 27.True or false: sugar dissolves in water. (a) True (b) False
28. 28.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) the sugar cube (c) powdered sugar (d) neither of them
29. 29.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of water (b) the water temperature (c) time to dissolve (d) the amount of sugar
30. 30.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) sugar (c) two clear glasses (d) honey
31. 31.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we measure it (b) we keep it the same (c) we change it
32. 32.🔍 Which is the odd one out? (a) chalk powder (b) small pebbles (c) sawdust (d) baking soda
33. 33.True or false: a magnet is not needed for the dissolving test. (a) False (b) True
34. 34.🔍 Which is the odd one out? (a) cooking oil (b) sand (c) small pebbles (d) food colour
35. 35.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we change it (b) we measure it (c) we keep it the same
36. 36.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) a teaspoon (c) a clock or timer (d) cold water
37. 37.🧺 Which of these is not needed for the dissolving test? (a) a comb (b) a teaspoon (c) two clear glasses (d) cold water
38. 38.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
39. 39.🔍 Which is the odd one out? (a) chalk powder (b) sand (c) cooking oil (d) sugar
40. 40.⚖️ 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 measure it (c) we change it

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