Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 949 · 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) all of it dissolves (b) some stays undissolved (c) the sugar turns to salt (d) the water turns solid
2. 2.🔍 Which is the odd one out? (a) sugar (b) small pebbles (c) glucose powder (d) baking soda
3. 3.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
4. 4.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
5. 5.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a magnet (c) a balloon (d) sugar
6. 6.True or false: small pebbles does not dissolve in water. (a) True (b) False
7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the kind of sugar (b) the amount of sugar (c) time to dissolve (d) the water temperature
8. 8.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
9. 9.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
10. 10.🔍 Which is the odd one out? (a) sand (b) glucose powder (c) sugar (d) table salt
11. 11.🥄 Which of these dissolves slower? (a) sugar stirred well (b) powdered sugar (c) sugar in warm water (d) sugar in icy water
12. 12.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
13. 13.🔍 Which is the odd one out? (a) sawdust (b) chalk powder (c) food colour (d) sand
14. 14.🔍 Which is the odd one out? (a) sugar (b) chalk powder (c) table salt (d) glucose powder
15. 15.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) sugar likes the dark (c) particles move faster (d) warm water is thicker
16. 16.True or false: a mirror is not needed for the dissolving test. (a) False (b) True
17. 17.🧺 Which of these is needed for the dissolving test? (a) cold water (b) a magnet (c) a balloon (d) a mirror
18. 18.⚖️ 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) False (b) True
19. 19.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) True (b) False
20. 20.🧺 Which of these is needed for the dissolving test? (a) warm water (b) a balloon (c) a magnet (d) a mirror
21. 21.🥄 Which of these dissolves in water? (a) small pebbles (b) glucose powder (c) cooking oil (d) chalk powder
22. 22.True or false: sugar in warm water dissolves slower. (a) True (b) False
23. 23.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it spread in the water (c) it sank as sand (d) it vanished for ever
24. 24.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) True (b) False
25. 25.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) a clock or timer (c) a magnet (d) cold water
26. 26.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
27. 27.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
28. 28.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
29. 29.🧺 Which of these is needed for the dissolving test? (a) a comb (b) cotton wool (c) honey (d) two clear glasses
30. 30.🥄 Which of these does not dissolve in water? (a) table salt (b) sawdust (c) glucose powder (d) sugar
31. 31.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a magnet (c) a rainbow (d) a solution
32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we change it (b) we keep it the same (c) we measure it
33. 33.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
34. 34.⚖️ 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 change it (c) we measure it
35. 35.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we keep it the same (b) we change it (c) we measure it
36. 36.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
37. 37.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
38. 38.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
39. 39.🥄 Which of these dissolves faster? (a) sugar in warm water (b) a big sugar cube (c) sugar in icy water (d) sugar left unstirred
40. 40.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) smell it closely (c) taste it (d) look for leftover grains

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