Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 503 · 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: cold water is needed for the dissolving test. (a) False (b) True
2. 2.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) a grown-up (c) the youngest child (d) nobody needs to
3. 3.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
4. 4.🔍 Which is the odd one out? (a) baking soda (b) table salt (c) sugar (d) chalk powder
5. 5.True or false: sugar stirred well dissolves slower. (a) True (b) False
6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is kept the same. (a) False (b) True
7. 7.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a clock or timer (c) sugar (d) a balloon
8. 8.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) time to dissolve (b) the water temperature (c) the amount of water (d) the stirring
9. 9.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
10. 10.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar stirred well (c) sugar in icy water (d) a big sugar cube
11. 11.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) taste it (c) smell it closely (d) poke it with a finger
12. 12.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) cold water (c) sugar (d) honey
13. 13.True or false: cooking oil dissolves in water. (a) True (b) False
14. 14.True or false: a big sugar cube dissolves slower. (a) True (b) False
15. 15.True or false: warm water is not needed for the dissolving test. (a) True (b) False
16. 16.⚖️ 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
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is kept the same. (a) False (b) True
18. 18.True or false: table salt dissolves in water. (a) True (b) False
19. 19.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) both the same (c) powdered sugar (d) the sugar cube
20. 20.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) a comb (c) sugar (d) warm water
21. 21.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we keep it the same (b) we measure it (c) we change it
23. 23.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
24. 24.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a mirror (c) warm water (d) a comb
25. 25.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
26. 26.⚖️ 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
27. 27.True or false: cooking oil does not dissolve in water. (a) False (b) True
28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we change it (b) we keep it the same (c) we measure it
29. 29.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a mirror (c) cold water (d) two clear glasses
30. 30.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar in warm water (d) sugar left unstirred
31. 31.🥄 Which of these dissolves in water? (a) chalk powder (b) small pebbles (c) sand (d) food colour
32. 32.⚖️ 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 change it (c) we keep it the same
33. 33.🔍 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
34. 34.True or false: a magnet is needed for the dissolving test. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) sawdust (b) glucose powder (c) sand (d) chalk powder
36. 36.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
37. 37.⚖️ 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) False (b) True
38. 38.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) cotton wool (c) two clear glasses (d) a teaspoon
39. 39.🔍 Which is the odd one out? (a) table salt (b) baking soda (c) cooking oil (d) sugar
40. 40.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed

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