Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 825 · 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: honey is needed for the dissolving test. (a) True (b) False
2. 2.True or false: sugar left unstirred dissolves slower. (a) False (b) True
3. 3.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) look for leftover grains (c) taste it (d) smell it closely
4. 4.🥄 Which of these dissolves in water? (a) small pebbles (b) sawdust (c) chalk powder (d) table salt
5. 5.True or false: sugar dissolves in water. (a) False (b) True
6. 6.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) not at all (c) the same (d) faster
7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we keep it the same (b) we change it (c) we measure it
8. 8.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar stirred well (c) sugar in icy water (d) a big sugar cube
9. 9.⚖️ 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) the stirring (c) time to dissolve (d) the water temperature
10. 10.True or false: two clear glasses is needed for the dissolving test. (a) True (b) False
11. 11.True or false: small pebbles dissolves in water. (a) True (b) False
12. 12.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in icy water (c) sugar in warm water (d) powdered sugar
13. 13.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
14. 14.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) a big sugar cube (d) powdered sugar
15. 15.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
16. 16.🔍 Which is the odd one out? (a) sawdust (b) small pebbles (c) cooking oil (d) glucose powder
17. 17.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
18. 18.⚖️ 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
19. 19.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we change it (b) we measure it (c) we keep it the same
20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is what we measure. (a) True (b) False
21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we measure it (b) we change it (c) we keep it the same
22. 22.🧺 Which of these is needed for the dissolving test? (a) honey (b) a comb (c) warm water (d) a magnet
23. 23.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) some stays undissolved (c) the sugar turns to salt (d) the water turns solid
24. 24.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) False (b) True
25. 25.True or false: chalk powder dissolves in water. (a) True (b) False
26. 26.True or false: sawdust does not dissolve in water. (a) False (b) True
27. 27.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) both the same (c) powdered sugar (d) the sugar cube
28. 28.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) warm water (c) a balloon (d) a clock or timer
29. 29.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
30. 30.True or false: a teaspoon is not needed for the dissolving test. (a) True (b) False
31. 31.True or false: table salt does not dissolve in water. (a) False (b) True
32. 32.True or false: sugar in warm water dissolves faster. (a) True (b) False
33. 33.🔍 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
34. 34.🥄 Which of these dissolves in water? (a) cooking oil (b) sawdust (c) small pebbles (d) sugar
35. 35.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
36. 36.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
37. 37.⚖️ 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
38. 38.True or false: a teaspoon is needed for the dissolving test. (a) True (b) False
39. 39.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
40. 40.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a rainbow (c) a solution (d) a magnet

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