Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 637 · 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.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a mirror (c) cold water (d) warm water
2. 2.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
3. 3.True or false: a comb is not needed for the dissolving test. (a) True (b) False
4. 4.⚖️ 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
5. 5.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a mirror (c) two clear glasses (d) warm water
6. 6.⚖️ 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 amount of sugar (c) the stirring (d) the kind of sugar
7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is kept the same. (a) True (b) False
8. 8.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
9. 9.🥄 Which of these dissolves in water? (a) cooking oil (b) table salt (c) sand (d) small pebbles
10. 10.True or false: warm water is not needed for the dissolving test. (a) True (b) False
11. 11.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
12. 12.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) nobody needs to (c) a grown-up (d) a friend who is running
13. 13.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a rainbow (c) a crystal (d) a solution
14. 14.🧺 Which of these is needed for the dissolving test? (a) honey (b) warm water (c) a balloon (d) a comb
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we change it (b) we measure it (c) we keep it the same
16. 16.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
17. 17.True or false: glucose powder dissolves in water. (a) True (b) False
18. 18.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
19. 19.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) not at all (d) faster
20. 20.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in warm water (c) powdered sugar (d) a big sugar cube
21. 21.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it spread in the water (c) it sank as sand (d) it became air
22. 22.True or false: warm water is needed for the dissolving test. (a) False (b) True
23. 23.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) particles move faster (c) sugar likes the dark (d) warm water is thicker
24. 24.🔍 Which is the odd one out? (a) sugar (b) cooking oil (c) sawdust (d) sand
25. 25.⚖️ 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 change it (c) we keep it the same
26. 26.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
27. 27.True or false: cotton wool is needed for the dissolving test. (a) False (b) True
28. 28.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
29. 29.🔍 Which is the odd one out? (a) food colour (b) baking soda (c) sand (d) glucose powder
30. 30.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
31. 31.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) poke it with a finger (c) look for leftover grains (d) taste it
32. 32.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
33. 33.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) neither of them (c) both the same (d) the sugar cube
34. 34.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar in icy water (d) powdered sugar
35. 35.True or false: food colour does not dissolve in water. (a) False (b) True
36. 36.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a comb (b) warm water (c) two clear glasses (d) sugar
37. 37.⚖️ 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
38. 38.True or false: sugar dissolves in water. (a) False (b) True
39. 39.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
40. 40.⚖️ 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 measure it (c) we keep it the same

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