Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 781 · 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: sugar left unstirred dissolves slower. (a) True (b) False
2. 2.⚖️ 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 keep it the same (c) we change it
3. 3.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
4. 4.🥄 Which of these does not dissolve in water? (a) baking soda (b) table salt (c) food colour (d) sand
5. 5.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
6. 6.True or false: sugar in warm water dissolves slower. (a) False (b) True
7. 7.True or false: two clear glasses is not needed for the dissolving test. (a) False (b) True
8. 8.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) faster (c) not at all (d) the same
9. 9.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) poke it with a finger (c) taste it (d) smell it closely
10. 10.🥄 Which of these does not dissolve in water? (a) table salt (b) food colour (c) glucose powder (d) chalk powder
11. 11.True or false: a mirror is not needed for the dissolving test. (a) True (b) False
12. 12.⚖️ 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
13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is the one thing we change. (a) True (b) False
14. 14.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
15. 15.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) sugar left unstirred (d) sugar stirred well
16. 16.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a friend who is running (c) the youngest child (d) a grown-up
17. 17.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) cold water (c) cotton wool (d) sugar
18. 18.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a mirror (b) a teaspoon (c) two clear glasses (d) cold water
19. 19.True or false: a comb is needed for the dissolving test. (a) False (b) True
20. 20.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
21. 21.True or false: sugar is needed for the dissolving test. (a) True (b) False
22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is the one thing we change. (a) True (b) False
23. 23.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a balloon (c) a mirror (d) two clear glasses
24. 24.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) two clear glasses (c) sugar (d) a magnet
25. 25.⚖️ 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
26. 26.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
27. 27.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it sank as sand (c) it spread in the water (d) it vanished for ever
28. 28.⚖️ 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
29. 29.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) two clear glasses (c) sugar (d) a magnet
30. 30.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) cold water is wet (c) particles move faster (d) sugar likes the dark
31. 31.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we change it (b) we measure it (c) we keep it the same
32. 32.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) powdered sugar (c) both the same (d) neither of them
33. 33.True or false: sand dissolves in water. (a) True (b) False
34. 34.True or false: sugar in warm water dissolves faster. (a) False (b) True
35. 35.True or false: powdered sugar dissolves faster. (a) True (b) False
36. 36.🔮 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) the sugar turns to salt (d) all of it dissolves
37. 37.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the stirring (b) the water temperature (c) time to dissolve (d) the amount of water
39. 39.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
40. 40.True or false: sugar in icy water dissolves faster. (a) True (b) False

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