Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 568 · 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.True or false: sugar does not dissolve in water. (a) True (b) False
2. 2.True or false: powdered sugar dissolves slower. (a) False (b) True
3. 3.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a grown-up (c) a friend who is running (d) nobody needs to
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.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
6. 6.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
7. 7.🧺 Which of these is needed for the dissolving test? (a) honey (b) a comb (c) a mirror (d) two clear glasses
8. 8.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a teaspoon (c) warm water (d) a comb
9. 9.🥄 Which of these dissolves in water? (a) chalk powder (b) food colour (c) small pebbles (d) sawdust
10. 10.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) sugar left unstirred (d) sugar in warm water
11. 11.⚖️ 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
12. 12.True or false: sugar stirred well dissolves faster. (a) True (b) False
13. 13.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) two clear glasses (c) cold water (d) a balloon
14. 14.🔍 Which is the odd one out? (a) glucose powder (b) cooking oil (c) chalk powder (d) small pebbles
15. 15.True or false: cooking oil does not dissolve in water. (a) True (b) False
16. 16.🔮 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
17. 17.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
18. 18.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a clock or timer (c) warm water (d) a comb
19. 19.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we measure it (b) we change it (c) we keep it the same
20. 20.⚖️ 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 keep it the same (c) we change it
21. 21.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) two clear glasses (c) sugar (d) honey
22. 22.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) taste it (c) poke it with a finger (d) look for leftover grains
23. 23.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) honey (c) cold water (d) a comb
24. 24.True or false: a comb is not needed for the dissolving test. (a) False (b) True
25. 25.True or false: a magnet is needed for the dissolving test. (a) False (b) True
26. 26.True or false: sugar is not needed for the dissolving test. (a) False (b) True
27. 27.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
28. 28.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in icy water (c) sugar in warm water (d) powdered sugar
29. 29.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
30. 30.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it vanished for ever (c) it became air (d) it spread in the water
31. 31.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) not at all (c) slower (d) faster
32. 32.🥄 Which of these dissolves in water? (a) cooking oil (b) baking soda (c) chalk powder (d) small pebbles
33. 33.🔍 Which is the odd one out? (a) food colour (b) cooking oil (c) glucose powder (d) baking soda
34. 34.⚖️ 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) False (b) True
35. 35.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) False (b) True
36. 36.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) cold water (c) warm water (d) a magnet
37. 37.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
38. 38.True or false: sugar in icy water dissolves slower. (a) False (b) True
39. 39.🔍 Which is the odd one out? (a) glucose powder (b) table salt (c) baking soda (d) sand
40. 40.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) some stays undissolved (c) the sugar turns to salt (d) all of it dissolves

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