Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 765 · 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.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it dissolves (c) it turns blue (d) it settles at the bottom
2. 2.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
3. 3.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
4. 4.⚖️ 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 change it (c) we measure it
5. 5.🧺 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) warm water
6. 6.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) the youngest child (c) nobody needs to (d) a grown-up
7. 7.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the sugar turns to salt (b) the water turns solid (c) some stays undissolved (d) all of it dissolves
8. 8.🥄 Which of these does not dissolve in water? (a) baking soda (b) sand (c) sugar (d) glucose powder
9. 9.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) the same (c) faster (d) slower
10. 10.⚖️ 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) False (b) True
11. 11.🛟 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
12. 12.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
13. 13.🧺 Which of these is not needed for the dissolving test? (a) a magnet (b) cold water (c) sugar (d) warm water
14. 14.True or false: a mirror is not needed for the dissolving test. (a) False (b) True
15. 15.True or false: food colour dissolves in water. (a) True (b) False
16. 16.True or false: a balloon is needed for the dissolving test. (a) False (b) True
17. 17.True or false: sugar in warm water dissolves faster. (a) True (b) False
18. 18.⚖️ 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) False (b) True
19. 19.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) time to dissolve (b) the amount of water (c) the amount of sugar (d) the water temperature
20. 20.⚖️ 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
21. 21.True or false: sugar stirred well dissolves faster. (a) True (b) False
22. 22.True or false: cotton wool is not needed for the dissolving test. (a) False (b) True
23. 23.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
24. 24.🥄 Which of these does not dissolve in water? (a) cooking oil (b) sugar (c) food colour (d) table salt
25. 25.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) warm water (c) honey (d) sugar
26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) True (b) False
27. 27.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
28. 28.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
29. 29.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) sugar stirred well (d) sugar left unstirred
30. 30.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) the sugar cube (c) neither of them (d) powdered sugar
31. 31.⚖️ 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
32. 32.True or false: cooking oil does not dissolve in water. (a) False (b) True
33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the kind of sugar (b) time to dissolve (c) the water temperature
34. 34.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) powdered sugar (d) a big sugar cube
35. 35.⚖️ 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
36. 36.⚖️ 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 change it (c) we keep it the same
37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) False (b) True
38. 38.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
39. 39.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
40. 40.🔍 Which is the odd one out? (a) chalk powder (b) glucose powder (c) food colour (d) table salt

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