Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 481 · 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.🛟 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
2. 2.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) sugar likes the dark (c) warm water is thicker (d) particles move faster
3. 3.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in icy water (c) sugar stirred well (d) sugar in warm water
4. 4.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
5. 5.🥄 Which of these does not dissolve in water? (a) food colour (b) glucose powder (c) cooking oil (d) sugar
6. 6.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) both the same (c) powdered sugar (d) neither of them
7. 7.True or false: two clear glasses is needed for the dissolving test. (a) False (b) True
8. 8.🔍 Which is the odd one out? (a) chalk powder (b) sand (c) sawdust (d) glucose powder
9. 9.True or false: small pebbles does not dissolve in water. (a) True (b) False
10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) False (b) True
11. 11.⚖️ 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 amount of water (c) time to dissolve (d) the kind of sugar
12. 12.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we keep it the same (b) we change it (c) we measure it
13. 13.⚖️ 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
14. 14.⚖️ 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
15. 15.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) not at all (c) slower (d) the same
16. 16.True or false: sugar stirred well dissolves slower. (a) False (b) True
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the water temperature (b) the stirring (c) the amount of water (d) the amount of sugar
18. 18.🧺 Which of these is not needed for the dissolving test? (a) honey (b) sugar (c) warm water (d) a clock or timer
19. 19.True or false: sugar does not dissolve in water. (a) False (b) True
20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we keep it the same (b) we measure it (c) we change it
21. 21.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) sugar stirred well (d) sugar left unstirred
22. 22.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) the youngest child (c) a friend who is running (d) nobody needs to
23. 23.True or false: a teaspoon is needed for the dissolving test. (a) True (b) False
24. 24.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
25. 25.🥄 Which of these does not dissolve in water? (a) glucose powder (b) table salt (c) food colour (d) small pebbles
26. 26.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
27. 27.True or false: food colour does not dissolve in water. (a) True (b) False
28. 28.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it sank as sand (c) it spread in the water (d) it became air
29. 29.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cotton wool (b) cold water (c) sugar (d) warm water
30. 30.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
31. 31.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
32. 32.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
33. 33.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a comb (c) two clear glasses (d) cotton wool
34. 34.True or false: baking soda does not dissolve in water. (a) True (b) False
35. 35.True or false: cotton wool is not needed for the dissolving test. (a) True (b) False
36. 36.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is the one thing we change. (a) True (b) False
37. 37.True or false: a clock or timer is not needed for the dissolving test. (a) True (b) False
38. 38.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
39. 39.🥄 Which of these dissolves in water? (a) table salt (b) sand (c) sawdust (d) small pebbles
40. 40.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed

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