Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 37 · 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.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) two clear glasses (c) sugar (d) honey
2. 2.🥄 Which of these dissolves in water? (a) small pebbles (b) sugar (c) chalk powder (d) sand
3. 3.True or false: sugar in icy water dissolves faster. (a) True (b) False
4. 4.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) smell it closely (c) poke it with a finger (d) taste it
5. 5.True or false: a clock or timer is needed for the dissolving test. (a) False (b) True
6. 6.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
7. 7.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it sank as sand (c) it became air (d) it spread in the water
8. 8.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is kept the same. (a) False (b) True
9. 9.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a mirror (c) sugar (d) a clock or timer
10. 10.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) faster (c) not at all (d) slower
11. 11.🔍 Which is the odd one out? (a) sawdust (b) cooking oil (c) small pebbles (d) table salt
12. 12.🥄 Which of these dissolves in water? (a) sand (b) cooking oil (c) baking soda (d) small pebbles
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 kind of sugar (b) the amount of water (c) the water temperature (d) time to dissolve
14. 14.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) cold water (c) a teaspoon (d) a magnet
15. 15.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
16. 16.⚖️ 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 measure it (c) we keep it the same
17. 17.🧺 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 comb
18. 18.True or false: a big sugar cube dissolves faster. (a) False (b) True
19. 19.🔍 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
20. 20.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
21. 21.True or false: a balloon is needed for the dissolving test. (a) False (b) True
22. 22.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
23. 23.🥄 Which of these does not dissolve in water? (a) sand (b) food colour (c) glucose powder (d) sugar
24. 24.⚖️ 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
25. 25.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we keep it the same (b) we measure it (c) we change it
26. 26.True or false: warm water is not needed for the dissolving test. (a) False (b) True
27. 27.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) both the same (c) the sugar cube (d) powdered sugar
28. 28.True or false: a teaspoon is needed for the dissolving test. (a) False (b) True
29. 29.True or false: a mirror is not needed for the dissolving test. (a) False (b) True
30. 30.🥄 Which of these does not dissolve in water? (a) cooking oil (b) sugar (c) table salt (d) baking soda
31. 31.⚖️ 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) time to dissolve (c) the stirring
32. 32.🔍 Which is the odd one out? (a) food colour (b) table salt (c) chalk powder (d) baking soda
33. 33.True or false: sugar does not dissolve in water. (a) True (b) False
34. 34.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is what we measure. (a) False (b) True
35. 35.True or false: sugar left unstirred dissolves faster. (a) True (b) False
36. 36.True or false: powdered sugar dissolves faster. (a) True (b) False
37. 37.🥄 Which of these dissolves in water? (a) small pebbles (b) sand (c) cooking oil (d) glucose powder
38. 38.True or false: sugar stirred well dissolves faster. (a) True (b) False
39. 39.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
40. 40.⚖️ 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 water temperature (c) the kind of sugar (d) the amount of water

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