Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 456 · 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.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
2. 2.⚖️ 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
3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the water temperature (b) the stirring (c) time to dissolve (d) the amount of water
4. 4.🥄 Which of these does not dissolve in water? (a) sugar (b) food colour (c) baking soda (d) small pebbles
5. 5.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) time to dissolve (b) the water temperature (c) the amount of sugar
6. 6.🥄 Which of these does not dissolve in water? (a) sugar (b) table salt (c) glucose powder (d) cooking oil
7. 7.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it spread in the water (c) it became air (d) it sank as sand
8. 8.⚖️ 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
9. 9.🔮 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
10. 10.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a mirror (c) a clock or timer (d) sugar
11. 11.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar in icy water (d) sugar in warm water
12. 12.⚖️ 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
13. 13.True or false: sugar in icy water dissolves slower. (a) True (b) False
14. 14.True or false: a clock or timer is not needed for the dissolving test. (a) False (b) True
15. 15.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) a big sugar cube (d) sugar stirred well
16. 16.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
17. 17.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a teaspoon (c) a magnet (d) two clear glasses
18. 18.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
19. 19.⚖️ 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
20. 20.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) particles move faster (c) sugar likes the dark (d) warm water is thicker
21. 21.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) cold water (c) two clear glasses (d) honey
22. 22.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) a balloon (c) two clear glasses (d) a clock or timer
23. 23.True or false: sugar left unstirred dissolves faster. (a) False (b) True
24. 24.⚖️ 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
25. 25.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) all of it dissolves (c) the sugar turns to salt (d) some stays undissolved
26. 26.⚖️ 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
27. 27.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) nobody needs to (c) a grown-up (d) the youngest child
28. 28.🥄 Which of these does not dissolve in water? (a) food colour (b) sawdust (c) glucose powder (d) table salt
29. 29.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
30. 30.⚖️ 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) False (b) True
31. 31.🥄 Which of these dissolves slower? (a) sugar in icy water (b) powdered sugar (c) sugar in warm water (d) sugar stirred well
32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the amount of water (b) time to dissolve (c) the kind of sugar (d) the water temperature
33. 33.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) warm water (c) a clock or timer (d) a mirror
34. 34.True or false: cotton wool is needed for the dissolving test. (a) False (b) True
35. 35.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
36. 36.True or false: a balloon is needed for the dissolving test. (a) True (b) False
37. 37.⚖️ 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
38. 38.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
39. 39.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) False (b) True
40. 40.True or false: sand dissolves in water. (a) False (b) True

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