Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 70 · 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 amount of sugar”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) True (b) False
3. 3.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it floats up (c) it settles at the bottom (d) it turns blue
4. 4.⚖️ 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
5. 5.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar stirred well (d) sugar left unstirred
6. 6.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
7. 7.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
8. 8.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the stirring (b) time to dissolve (c) the amount of sugar (d) the water temperature
9. 9.🥄 Which of these dissolves in water? (a) chalk powder (b) sawdust (c) cooking oil (d) table salt
10. 10.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
11. 11.True or false: warm water is needed for the dissolving test. (a) True (b) False
12. 12.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) cold water (c) warm water (d) sugar
13. 13.True or false: sugar does not dissolve in water. (a) False (b) True
14. 14.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) warm water (c) a balloon (d) sugar
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) True (b) False
16. 16.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) warm water (c) cold water (d) a mirror
17. 17.🔍 Which is the odd one out? (a) cooking oil (b) sugar (c) table salt (d) glucose powder
18. 18.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it became air (c) it spread in the water (d) it sank as sand
19. 19.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) a magnet (c) a balloon (d) cold water
20. 20.🛟 How should you check if the sugar has dissolved? (a) taste it (b) smell it closely (c) look for leftover grains (d) poke it with a finger
21. 21.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in icy water (c) sugar in warm water (d) sugar stirred well
22. 22.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
23. 23.⚖️ 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 change it (c) we keep it the same
24. 24.🥄 Which of these dissolves in water? (a) chalk powder (b) sawdust (c) sand (d) baking soda
25. 25.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) nobody needs to (c) the youngest child (d) a grown-up
26. 26.🥄 Which of these dissolves in water? (a) sand (b) food colour (c) small pebbles (d) cooking oil
27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) table salt (b) chalk powder (c) sawdust (d) sand
29. 29.True or false: honey is needed for the dissolving test. (a) False (b) True
30. 30.⚖️ 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 keep it the same (c) we measure it
31. 31.⚖️ 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 water temperature (d) time to dissolve
32. 32.⚖️ 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
33. 33.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
34. 34.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
35. 35.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
36. 36.🥄 Which of these dissolves slower? (a) a big sugar cube (b) powdered sugar (c) sugar in warm water (d) sugar stirred well
37. 37.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) two clear glasses (c) a comb (d) warm water
38. 38.⚖️ 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 stirring (c) time to dissolve
39. 39.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is what we measure. (a) False (b) True
40. 40.⚖️ 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

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