Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 646 · 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.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) all of it dissolves (c) the sugar turns to salt (d) the water turns solid
2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is the one thing we change. (a) False (b) True
3. 3.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
4. 4.True or false: honey is needed for the dissolving test. (a) True (b) False
5. 5.True or false: sugar in icy water dissolves slower. (a) True (b) False
6. 6.🔍 Which is the odd one out? (a) cooking oil (b) sawdust (c) glucose powder (d) small pebbles
7. 7.⚖️ 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
8. 8.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) honey (c) a clock or timer (d) two clear glasses
9. 9.⚖️ 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 amount of sugar (c) the amount of water (d) time to dissolve
10. 10.True or false: sugar in warm water dissolves slower. (a) False (b) True
11. 11.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) both the same (c) neither of them (d) powdered sugar
12. 12.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of water (b) the water temperature (c) time to dissolve
14. 14.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a balloon (c) cold water (d) cotton wool
15. 15.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a teaspoon (c) two clear glasses (d) cotton wool
16. 16.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a friend who is running (c) a grown-up (d) nobody needs to
17. 17.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it turns blue (c) it dissolves (d) it settles at the bottom
18. 18.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
19. 19.🔍 Which is the odd one out? (a) cooking oil (b) food colour (c) glucose powder (d) sugar
20. 20.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
21. 21.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a clock or timer (c) a mirror (d) two clear glasses
22. 22.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
23. 23.⚖️ 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 sugar (b) the water temperature (c) time to dissolve (d) the amount of water
24. 24.🥄 Which of these dissolves faster? (a) sugar in warm water (b) sugar in icy water (c) a big sugar cube (d) sugar left unstirred
25. 25.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar in icy water (c) powdered sugar (d) sugar stirred well
26. 26.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
27. 27.⚖️ 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 change it (c) we keep it the same
28. 28.🔍 Which is the odd one out? (a) glucose powder (b) small pebbles (c) sugar (d) table salt
29. 29.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) sugar (c) a magnet (d) warm water
30. 30.True or false: sugar left unstirred dissolves slower. (a) False (b) True
31. 31.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) faster (c) the same (d) slower
32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we change it (b) we keep it the same (c) we measure it
33. 33.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
34. 34.True or false: sawdust does not dissolve in water. (a) True (b) False
35. 35.True or false: table salt dissolves in water. (a) False (b) True
36. 36.True or false: a big sugar cube dissolves faster. (a) True (b) False
37. 37.🥄 Which of these dissolves in water? (a) cooking oil (b) chalk powder (c) food colour (d) small pebbles
38. 38.True or false: a comb is not needed for the dissolving test. (a) False (b) True
39. 39.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a clock or timer (c) a magnet (d) cold water
40. 40.🥄 Which of these dissolves in water? (a) chalk powder (b) sand (c) small pebbles (d) table salt

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