Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 843 · 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.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a clock or timer (c) cotton wool (d) a teaspoon
2. 2.🛟 How should you check if the sugar has dissolved? (a) taste it (b) look for leftover grains (c) smell it closely (d) poke it with a finger
3. 3.⚖️ 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 keep it the same (c) we change it
4. 4.⚖️ 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
5. 5.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
6. 6.⚖️ 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
7. 7.🥄 Which of these does not dissolve in water? (a) baking soda (b) sugar (c) food colour (d) cooking oil
8. 8.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) slower (c) faster (d) not at all
9. 9.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
10. 10.True or false: sugar stirred well dissolves faster. (a) False (b) True
11. 11.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a magnet (c) cold water (d) warm water
12. 12.True or false: a mirror is not needed for the dissolving test. (a) True (b) False
13. 13.True or false: honey is not needed for the dissolving test. (a) False (b) True
14. 14.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
15. 15.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
16. 16.🥄 Which of these dissolves slower? (a) sugar left unstirred (b) sugar in warm water (c) sugar stirred well (d) powdered sugar
17. 17.🥄 Which of these dissolves in water? (a) sawdust (b) small pebbles (c) food colour (d) chalk powder
18. 18.True or false: cold water is not needed for the dissolving test. (a) False (b) True
19. 19.⚖️ 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
20. 20.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) warm water is thicker (c) sugar likes the dark (d) particles move faster
21. 21.True or false: sugar does not dissolve in water. (a) True (b) False
22. 22.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a balloon (b) two clear glasses (c) sugar (d) warm water
23. 23.True or false: cold water is needed for the dissolving test. (a) True (b) False
24. 24.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) cold water (c) a teaspoon (d) a mirror
25. 25.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) both the same (c) the sugar cube (d) powdered sugar
26. 26.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar in icy water (d) sugar stirred well
27. 27.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar stirred well (c) sugar left unstirred (d) sugar in icy water
28. 28.True or false: a big sugar cube dissolves faster. (a) False (b) True
29. 29.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
30. 30.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it dissolves (c) it settles at the bottom (d) it turns blue
31. 31.⚖️ 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) time to dissolve (c) the amount of water
32. 32.⚖️ 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 keep it the same (c) we change it
33. 33.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
34. 34.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
35. 35.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) sugar (c) a balloon (d) warm water
36. 36.True or false: chalk powder dissolves in water. (a) False (b) True
37. 37.⚖️ 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
38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) False (b) True
39. 39.True or false: sugar in warm water dissolves faster. (a) False (b) True
40. 40.⚖️ 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

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