Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 775 · 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 stirred well dissolves slower. (a) True (b) False
2. 2.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
3. 3.🥄 Which of these dissolves faster? (a) sugar in icy water (b) powdered sugar (c) a big sugar cube (d) sugar left unstirred
4. 4.True or false: cold water is needed for the dissolving test. (a) True (b) False
5. 5.True or false: sugar stirred well dissolves faster. (a) False (b) True
6. 6.True or false: glucose powder dissolves in water. (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 water temperature”? (a) we measure it (b) we change it (c) we keep it the same
8. 8.🥄 Which of these dissolves faster? (a) sugar stirred well (b) sugar left unstirred (c) a big sugar cube (d) sugar in icy water
9. 9.⚖️ 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
10. 10.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
11. 11.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a balloon (c) a clock or timer (d) a teaspoon
12. 12.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) cold water (c) sugar (d) a mirror
13. 13.True or false: honey is needed for the dissolving test. (a) False (b) True
14. 14.⚖️ 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
15. 15.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) cold water (c) warm water (d) a mirror
16. 16.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
17. 17.🥄 Which of these dissolves in water? (a) sawdust (b) cooking oil (c) glucose powder (d) chalk powder
18. 18.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) warm water is thicker (c) cold water is wet (d) particles move faster
19. 19.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar in warm water (d) sugar left unstirred
20. 20.True or false: a big sugar cube dissolves faster. (a) True (b) False
21. 21.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) poke it with a finger (c) smell it closely (d) taste it
22. 22.True or false: sugar left unstirred dissolves faster. (a) False (b) True
23. 23.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
24. 24.True or false: warm water is needed for the dissolving test. (a) False (b) True
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.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a grown-up (c) the youngest child (d) a friend who is running
27. 27.True or false: a mirror is not needed for the dissolving test. (a) False (b) True
28. 28.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
29. 29.🥄 Which of these does not dissolve in water? (a) food colour (b) sugar (c) baking soda (d) cooking oil
30. 30.🔍 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
31. 31.🥄 Which of these dissolves in water? (a) cooking oil (b) sand (c) small pebbles (d) sugar
32. 32.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) cotton wool (c) warm water (d) a balloon
33. 33.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) a teaspoon (c) two clear glasses (d) a magnet
34. 34.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
35. 35.🥄 Which of these dissolves slower? (a) sugar in icy water (b) sugar stirred well (c) sugar in warm water (d) powdered sugar
36. 36.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is the one thing we change. (a) False (b) True
37. 37.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it spread in the water (c) it vanished for ever (d) it sank as sand
38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is kept the same. (a) True (b) False
39. 39.⚖️ 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) False (b) True
40. 40.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in warm water (c) a big sugar cube (d) powdered sugar

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