Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 307 · 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.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
2. 2.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
3. 3.📘 What do we call water with sugar dissolved in it? (a) a solution (b) a magnet (c) a rainbow (d) a crystal
4. 4.⚖️ 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
5. 5.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
6. 6.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) both the same (c) neither of them (d) the sugar cube
7. 7.⚖️ 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
8. 8.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we keep it the same (c) we measure it
9. 9.True or false: a big sugar cube dissolves faster. (a) True (b) False
10. 10.True or false: sugar left unstirred dissolves faster. (a) False (b) True
11. 11.🥄 Which of these dissolves faster? (a) sugar in warm water (b) sugar in icy water (c) sugar left unstirred (d) a big sugar cube
12. 12.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we keep it the same (b) we measure it (c) we change it
13. 13.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
14. 14.True or false: a magnet is not needed for the dissolving test. (a) False (b) True
15. 15.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in warm water (c) sugar in icy water (d) powdered sugar
16. 16.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) powdered sugar (d) sugar left unstirred
17. 17.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
18. 18.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) cotton wool (c) two clear glasses (d) cold water
19. 19.🥄 Which of these does not dissolve in water? (a) sand (b) baking soda (c) table salt (d) glucose powder
20. 20.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it sank as sand (c) it vanished for ever (d) it became air
21. 21.⚖️ 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) True (b) False
22. 22.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) particles move faster (c) cold water is wet (d) warm water is thicker
23. 23.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
24. 24.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) warm water (c) a balloon (d) a clock or timer
25. 25.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we change it (b) we measure it (c) we keep it the same
26. 26.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
27. 27.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) two clear glasses (c) cotton wool (d) a clock or timer
28. 28.True or false: sugar left unstirred dissolves slower. (a) True (b) False
29. 29.🥄 Which of these dissolves in water? (a) small pebbles (b) sand (c) table salt (d) cooking oil
30. 30.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) the water turns solid (c) the sugar turns to salt (d) some stays undissolved
31. 31.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the stirring (b) time to dissolve (c) the water temperature
32. 32.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
33. 33.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) poke it with a finger (c) taste it (d) look for leftover grains
34. 34.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a comb (c) a clock or timer (d) sugar
35. 35.🔍 Which is the odd one out? (a) sawdust (b) table salt (c) sugar (d) baking soda
36. 36.True or false: baking soda dissolves in water. (a) True (b) False
37. 37.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a balloon (c) sugar (d) a comb
38. 38.⚖️ 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 stirring (c) the amount of sugar (d) the amount of water
39. 39.⚖️ 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) True (b) False
40. 40.True or false: cold water is needed for the dissolving test. (a) False (b) True

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