Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 582 · 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.🥄 Which of these does not dissolve in water? (a) sugar (b) glucose powder (c) sawdust (d) food colour
2. 2.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
3. 3.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a grown-up (c) the youngest child (d) a friend who is running
4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) True (b) False
5. 5.🥄 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
6. 6.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a comb (c) a balloon (d) cold water
7. 7.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
8. 8.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) powdered sugar (d) sugar left unstirred
9. 9.True or false: a comb is not needed for the dissolving test. (a) False (b) True
10. 10.⚖️ 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 water temperature (d) the kind of sugar
11. 11.🔍 Which is the odd one out? (a) sand (b) table salt (c) food colour (d) sugar
12. 12.🥄 Which of these dissolves in water? (a) small pebbles (b) sand (c) cooking oil (d) glucose powder
13. 13.True or false: powdered sugar dissolves slower. (a) False (b) True
14. 14.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in icy water (c) sugar in warm water (d) powdered sugar
15. 15.True or false: warm water is not needed for the dissolving test. (a) True (b) False
16. 16.🔍 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
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) time to dissolve (b) the kind of sugar (c) the water temperature
18. 18.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) cotton wool (c) sugar (d) a teaspoon
20. 20.🔍 Which is the odd one out? (a) food colour (b) small pebbles (c) sawdust (d) cooking oil
21. 21.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) powdered sugar (c) neither of them (d) the sugar cube
22. 22.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it dissolves (c) it settles at the bottom (d) it turns blue
23. 23.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
24. 24.🧺 Which of these is needed for the dissolving test? (a) honey (b) cotton wool (c) sugar (d) a comb
25. 25.True or false: sawdust does not dissolve in water. (a) True (b) False
26. 26.True or false: sawdust dissolves in water. (a) True (b) False
27. 27.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) cold water (c) a clock or timer (d) a mirror
28. 28.True or false: sugar is not needed for the dissolving test. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) glucose powder (b) sawdust (c) sugar (d) baking soda
30. 30.⚖️ 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
31. 31.⚖️ 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 amount of water (c) time to dissolve
32. 32.⚖️ 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 measure it (c) we keep it the same
33. 33.🔮 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) some stays undissolved (c) the water turns solid (d) all of it dissolves
34. 34.True or false: a balloon is needed for the dissolving test. (a) False (b) True
35. 35.True or false: a clock or timer is needed for the dissolving test. (a) False (b) True
36. 36.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
37. 37.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a teaspoon (c) cold water (d) a magnet
38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we measure it (b) we change it (c) we keep it the same
39. 39.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is the one thing we change. (a) True (b) False
40. 40.True or false: table salt does not dissolve in water. (a) False (b) True

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