Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 263 · 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 sugar stirred well dissolve faster or slower? (a) faster (b) slower
2. 2.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
3. 3.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) the water turns solid (c) all of it dissolves (d) the sugar turns to salt
4. 4.⚖️ 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 kind of sugar
5. 5.True or false: sugar in warm water dissolves slower. (a) False (b) True
6. 6.⚖️ 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
7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we measure it (b) we keep it the same (c) we change it
8. 8.⚖️ 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 keep it the same (c) we change it
9. 9.True or false: sugar stirred well dissolves slower. (a) True (b) False
10. 10.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
11. 11.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
12. 12.True or false: sugar left unstirred dissolves faster. (a) False (b) True
13. 13.True or false: a big sugar cube dissolves slower. (a) False (b) True
14. 14.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
15. 15.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) sugar in icy water (d) sugar in warm water
16. 16.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
17. 17.⚖️ 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
18. 18.True or false: a teaspoon is needed for the dissolving test. (a) False (b) True
19. 19.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
20. 20.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) powdered sugar (c) sugar in icy water (d) a big sugar cube
21. 21.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
22. 22.True or false: sugar in icy water dissolves slower. (a) True (b) False
23. 23.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) cold water (c) sugar (d) cotton wool
24. 24.⚖️ 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
25. 25.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
26. 26.🔮 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
27. 27.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
28. 28.🥄 Which of these dissolves in water? (a) sawdust (b) glucose powder (c) sand (d) cooking oil
29. 29.🔍 Which is the odd one out? (a) chalk powder (b) glucose powder (c) sawdust (d) small pebbles
30. 30.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a solution (c) a magnet (d) a crystal
31. 31.🛟 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
32. 32.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it became air (c) it sank as sand (d) it vanished for ever
33. 33.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) taste it (c) poke it with a finger (d) look for leftover grains
34. 34.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the kind of sugar (b) the water temperature (c) the amount of sugar (d) the stirring
35. 35.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
36. 36.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) cold water (c) a comb (d) a teaspoon
37. 37.True or false: warm water is not needed for the dissolving test. (a) True (b) False
38. 38.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar stirred well (d) a big sugar cube
39. 39.🧺 Which of these is not needed for the dissolving test? (a) a mirror (b) two clear glasses (c) cold water (d) a clock or timer
40. 40.True or false: sugar in icy water dissolves faster. (a) False (b) True

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