Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 800 · 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: cotton wool is needed for the dissolving test. (a) True (b) False
2. 2.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a mirror (c) sugar (d) a clock or timer
3. 3.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the stirring (b) the water temperature (c) the amount of sugar (d) time to dissolve
5. 5.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a balloon (c) a clock or timer (d) sugar
6. 6.True or false: table salt dissolves in water. (a) True (b) False
7. 7.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) a big sugar cube (d) sugar in warm water
8. 8.🔮 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
9. 9.⚖️ 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
10. 10.True or false: sugar is not needed for the dissolving test. (a) True (b) False
11. 11.⚖️ 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
12. 12.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) the youngest child (c) a grown-up (d) nobody needs to
13. 13.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) particles move faster (c) warm water is thicker (d) sugar likes the dark
14. 14.🔍 Which is the odd one out? (a) sand (b) baking soda (c) sawdust (d) cooking oil
15. 15.True or false: glucose powder does not dissolve in water. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) food colour (b) cooking oil (c) sugar (d) glucose powder
17. 17.🔍 Which is the odd one out? (a) small pebbles (b) table salt (c) food colour (d) sugar
18. 18.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
19. 19.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is the one thing we change. (a) True (b) False
20. 20.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
21. 21.True or false: sugar left unstirred dissolves slower. (a) False (b) True
22. 22.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in warm water (c) sugar in icy water (d) powdered sugar
23. 23.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
24. 24.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
25. 25.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
26. 26.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) powdered sugar (d) sugar left unstirred
27. 27.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) a comb (c) honey (d) two clear glasses
28. 28.⚖️ 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 keep it the same (c) we change it
29. 29.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
30. 30.True or false: chalk powder dissolves in water. (a) False (b) True
31. 31.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) slower (c) the same (d) not at all
32. 32.⚖️ 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 stirring (c) time to dissolve
33. 33.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it became air (c) it spread in the water (d) it sank as sand
34. 34.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a clock or timer (c) a comb (d) warm water
35. 35.True or false: sugar in warm water dissolves slower. (a) True (b) False
36. 36.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it settles at the bottom (c) it dissolves (d) it turns blue
37. 37.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is kept the same. (a) True (b) False
39. 39.⚖️ 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
40. 40.🔍 Which is the odd one out? (a) baking soda (b) sand (c) sugar (d) table salt

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