Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 574 · 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.🥄 Which of these dissolves in water? (a) cooking oil (b) table salt (c) small pebbles (d) chalk powder
2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is the one thing we change. (a) False (b) True
3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we keep it the same (b) we measure it (c) we change it
4. 4.True or false: a mirror is not needed for the dissolving test. (a) True (b) False
5. 5.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
6. 6.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
7. 7.True or false: sugar is needed for the dissolving test. (a) False (b) True
8. 8.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) a grown-up (c) nobody needs to (d) the youngest child
9. 9.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it vanished for ever (c) it became air (d) it spread in the water
10. 10.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) poke it with a finger (c) taste it (d) look for leftover grains
11. 11.True or false: sugar stirred well dissolves slower. (a) True (b) False
12. 12.🧺 Which of these is needed for the dissolving test? (a) honey (b) a magnet (c) a clock or timer (d) a mirror
13. 13.True or false: sugar in warm water dissolves faster. (a) True (b) False
14. 14.⚖️ 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
15. 15.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
16. 16.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar in icy water (d) sugar in warm water
17. 17.True or false: cold water is needed for the dissolving test. (a) False (b) True
18. 18.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) not at all (d) faster
19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a balloon (c) cold water (d) sugar
20. 20.True or false: food colour does not dissolve in water. (a) False (b) True
21. 21.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) the sugar turns to salt (c) the water turns solid (d) all of it dissolves
22. 22.🧺 Which of these is not needed for the dissolving test? (a) cotton wool (b) a teaspoon (c) sugar (d) warm water
23. 23.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a comb (c) a teaspoon (d) sugar
24. 24.🔍 Which is the odd one out? (a) baking soda (b) cooking oil (c) sawdust (d) chalk powder
25. 25.⚖️ 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 change it (c) we keep it the same
26. 26.⚖️ 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 kind of sugar (c) the amount of sugar (d) the water temperature
27. 27.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
28. 28.🥄 Which of these does not dissolve in water? (a) food colour (b) sugar (c) chalk powder (d) table salt
29. 29.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is the one thing we change. (a) False (b) True
30. 30.🔍 Which is the odd one out? (a) baking soda (b) chalk powder (c) glucose powder (d) sugar
31. 31.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) True (b) False
32. 32.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we change it (b) we measure it (c) we keep it the same
34. 34.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the kind of sugar (b) the stirring (c) the water temperature (d) time to dissolve
35. 35.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
36. 36.True or false: chalk powder does not dissolve in water. (a) False (b) True
37. 37.🥄 Which of these dissolves slower? (a) sugar stirred well (b) a big sugar cube (c) powdered sugar (d) sugar in warm water
38. 38.True or false: sugar in icy water dissolves slower. (a) False (b) True
39. 39.🔍 Which is the odd one out? (a) sawdust (b) sugar (c) table salt (d) baking soda
40. 40.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower

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