Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 349 · 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: glucose powder dissolves in water. (a) False (b) True
2. 2.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) sugar (c) warm water (d) two clear glasses
3. 3.True or false: sugar stirred well dissolves slower. (a) True (b) False
4. 4.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
5. 5.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we change it (b) we measure it (c) we keep it the same
6. 6.True or false: a teaspoon is needed for the dissolving test. (a) True (b) False
7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we measure it (b) we change it (c) we keep it the same
8. 8.True or false: table salt does not dissolve in water. (a) False (b) True
9. 9.⚖️ 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 amount of sugar (d) the stirring
10. 10.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it floats up (c) it dissolves (d) it settles at the bottom
11. 11.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
12. 12.🧺 Which of these is not needed for the dissolving test? (a) cotton wool (b) sugar (c) a teaspoon (d) two clear glasses
13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we keep it the same (b) we measure it (c) we change it
14. 14.⚖️ 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) True (b) False
15. 15.True or false: a big sugar cube dissolves faster. (a) True (b) False
16. 16.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a comb (c) a teaspoon (d) warm water
17. 17.🥄 Which of these does not dissolve in water? (a) sand (b) food colour (c) sugar (d) glucose powder
18. 18.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
19. 19.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
20. 20.🥄 Which of these dissolves faster? (a) powdered sugar (b) sugar left unstirred (c) a big sugar cube (d) sugar in icy water
21. 21.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) smell it closely (c) taste it (d) look for leftover grains
22. 22.⚖️ 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) True (b) False
23. 23.🔍 Which is the odd one out? (a) chalk powder (b) table salt (c) sugar (d) food colour
24. 24.True or false: a big sugar cube dissolves slower. (a) True (b) False
25. 25.🔍 Which is the odd one out? (a) glucose powder (b) food colour (c) baking soda (d) cooking oil
26. 26.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) the sugar cube (c) both the same (d) neither of them
27. 27.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it spread in the water (c) it sank as sand (d) it became air
28. 28.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) slower (c) not at all (d) faster
29. 29.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar left unstirred (c) sugar in warm water (d) sugar stirred well
30. 30.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a clock or timer (c) honey (d) a teaspoon
31. 31.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a clock or timer (c) a mirror (d) sugar
32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of water (b) time to dissolve (c) the water temperature
33. 33.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
34. 34.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) cotton wool (c) a teaspoon (d) a clock or timer
35. 35.True or false: cold water is not needed for the dissolving test. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) sand (b) small pebbles (c) table salt (d) chalk powder
37. 37.True or false: sand dissolves in water. (a) False (b) True
38. 38.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
39. 39.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) cold water (c) a magnet (d) warm water
40. 40.🥄 Which of these does not dissolve in water? (a) cooking oil (b) glucose powder (c) sugar (d) table salt

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