Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 569 · 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.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
2. 2.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a friend who is running (c) a grown-up (d) nobody needs to
3. 3.True or false: sawdust dissolves in water. (a) True (b) False
4. 4.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
5. 5.⚖️ 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
6. 6.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
7. 7.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
8. 8.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
9. 9.⚖️ 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
10. 10.🔮 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
11. 11.🥄 Which of these dissolves slower? (a) a big sugar cube (b) powdered sugar (c) sugar stirred well (d) sugar in warm water
12. 12.True or false: sugar left unstirred dissolves slower. (a) False (b) True
13. 13.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) warm water is thicker (c) particles move faster (d) sugar likes the dark
14. 14.⚖️ 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 water temperature (c) time to dissolve (d) the amount of sugar
15. 15.🔍 Which is the odd one out? (a) sand (b) chalk powder (c) food colour (d) small pebbles
16. 16.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
17. 17.🔍 Which is the odd one out? (a) sugar (b) table salt (c) food colour (d) chalk powder
18. 18.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
19. 19.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it became air (c) it sank as sand (d) it spread in the water
20. 20.🧺 Which of these is not needed for the dissolving test? (a) a comb (b) a clock or timer (c) two clear glasses (d) sugar
21. 21.🥄 Which of these dissolves slower? (a) sugar stirred well (b) powdered sugar (c) sugar in warm water (d) sugar in icy water
22. 22.True or false: sugar does not dissolve in water. (a) True (b) False
23. 23.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) taste it (c) smell it closely (d) poke it with a finger
24. 24.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a teaspoon (c) sugar (d) a comb
25. 25.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the amount of sugar (b) the water temperature (c) the stirring (d) time to dissolve
26. 26.True or false: powdered sugar dissolves slower. (a) False (b) True
27. 27.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) neither of them (c) the sugar cube (d) powdered sugar
28. 28.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar in warm water (d) sugar left unstirred
29. 29.⚖️ 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
30. 30.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it dissolves (c) it floats up (d) it settles at the bottom
31. 31.True or false: a big sugar cube dissolves slower. (a) False (b) True
32. 32.🥄 Which of these does not dissolve in water? (a) sugar (b) table salt (c) glucose powder (d) cooking oil
33. 33.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
34. 34.True or false: honey is needed for the dissolving test. (a) False (b) True
35. 35.True or false: cold water is not needed for the dissolving test. (a) False (b) True
36. 36.🧺 Which of these is needed for the dissolving test? (a) sugar (b) a comb (c) a magnet (d) honey
37. 37.True or false: cotton wool is needed for the dissolving test. (a) True (b) False
38. 38.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
39. 39.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) warm water (c) a balloon (d) two clear glasses
40. 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is kept the same. (a) False (b) True

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