Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 155 · 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: a magnet is not needed for the dissolving test. (a) True (b) False
2. 2.True or false: sugar in warm water dissolves slower. (a) False (b) True
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 change it (b) we measure it (c) we keep it the same
4. 4.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar in warm water (c) sugar left unstirred (d) a big sugar cube
5. 5.🥄 Does small pebbles 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? True or false: the kind of sugar is what we measure. (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 amount of sugar”? (a) we keep it the same (b) we measure it (c) we change it
8. 8.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is kept the same. (a) True (b) False
9. 9.True or false: sugar is needed for the dissolving test. (a) False (b) True
10. 10.True or false: sugar left unstirred dissolves faster. (a) False (b) True
11. 11.🥄 Which of these does not dissolve in water? (a) table salt (b) sugar (c) sand (d) baking soda
12. 12.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
13. 13.⚖️ 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
14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is what we measure. (a) False (b) True
15. 15.🧺 Which of these is needed for the dissolving test? (a) cold water (b) honey (c) a balloon (d) a comb
16. 16.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) a clock or timer (c) cotton wool (d) two clear glasses
17. 17.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) neither of them (c) the sugar cube (d) both the same
18. 18.🥄 Which of these dissolves in water? (a) chalk powder (b) sawdust (c) sand (d) table salt
19. 19.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it dissolves (c) it floats up (d) it settles at the bottom
20. 20.⚖️ 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 amount of water (c) the water temperature (d) time to dissolve
21. 21.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it vanished for ever (c) it spread in the water (d) it became air
22. 22.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) not at all (c) slower (d) faster
23. 23.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) particles move faster (c) sugar likes the dark (d) cold water is wet
24. 24.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
25. 25.⚖️ 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 amount of sugar (c) time to dissolve
26. 26.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) honey (c) a clock or timer (d) sugar
27. 27.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) sugar (c) cold water (d) a balloon
28. 28.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
29. 29.True or false: food colour does not dissolve in water. (a) False (b) True
30. 30.⚖️ 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
31. 31.True or false: a clock or timer is needed for the dissolving test. (a) False (b) True
32. 32.🥄 Which of these dissolves in water? (a) sand (b) sawdust (c) cooking oil (d) baking soda
33. 33.True or false: cold water is not needed for the dissolving test. (a) False (b) True
34. 34.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of water (b) the amount of sugar (c) time to dissolve (d) the water temperature
35. 35.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a mirror (b) a clock or timer (c) cold water (d) warm water
36. 36.🔍 Which is the odd one out? (a) sugar (b) table salt (c) sawdust (d) food colour
37. 37.🔍 Which is the odd one out? (a) chalk powder (b) cooking oil (c) sand (d) glucose powder
38. 38.🔍 Which is the odd one out? (a) baking soda (b) sand (c) chalk powder (d) small pebbles
39. 39.True or false: sugar in warm water dissolves faster. (a) True (b) False
40. 40.True or false: baking soda dissolves in water. (a) True (b) False

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