Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 543 · 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.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
2. 2.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) a big sugar cube (d) sugar stirred well
3. 3.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) True (b) False
5. 5.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
6. 6.True or false: chalk powder does not dissolve in water. (a) True (b) False
7. 7.True or false: a big sugar cube dissolves faster. (a) True (b) False
8. 8.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a comb (c) cold water (d) a teaspoon
9. 9.⚖️ 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
10. 10.True or false: sugar in warm water dissolves faster. (a) False (b) True
11. 11.⚖️ 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 keep it the same (c) we change it
12. 12.True or false: honey is not needed for the dissolving test. (a) False (b) True
13. 13.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) some stays undissolved (c) all of it dissolves (d) the sugar turns to salt
14. 14.🔍 Which is the odd one out? (a) sugar (b) table salt (c) sand (d) food colour
15. 15.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a teaspoon (c) a magnet (d) a clock or timer
16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we keep it the same (b) we change it (c) we measure it
17. 17.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
18. 18.🥄 Which of these dissolves slower? (a) sugar in icy water (b) sugar in warm water (c) sugar stirred well (d) powdered sugar
19. 19.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of sugar (b) time to dissolve (c) the water temperature
20. 20.🥄 Which of these dissolves in water? (a) sawdust (b) sand (c) baking soda (d) small pebbles
21. 21.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
22. 22.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) cold water is wet (c) warm water is thicker (d) particles move faster
23. 23.True or false: a clock or timer is needed for the dissolving test. (a) True (b) False
24. 24.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it spread in the water (c) it became air (d) it vanished for ever
25. 25.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) sugar (c) honey (d) warm water
26. 26.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) sugar (c) a mirror (d) warm water
27. 27.⚖️ 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
28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we measure it (c) we keep it the same
29. 29.True or false: sugar stirred well dissolves faster. (a) False (b) True
30. 30.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) sugar in warm water (d) sugar left unstirred
31. 31.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the water temperature (b) the kind of sugar (c) the amount of water (d) time to dissolve
32. 32.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
33. 33.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) faster (c) slower (d) not at all
34. 34.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
35. 35.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) time to dissolve (b) the amount of water (c) the water temperature
36. 36.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
37. 37.🧺 Which of these is needed for the dissolving test? (a) a comb (b) two clear glasses (c) cotton wool (d) a balloon
38. 38.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) powdered sugar (c) the sugar cube (d) both the same
39. 39.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
40. 40.🛟 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

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