Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 91 · 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.🥄 Which of these dissolves slower? (a) a big sugar cube (b) powdered sugar (c) sugar in warm water (d) sugar stirred well
2. 2.⚖️ 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 measure it (c) we change it
3. 3.⚖️ 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
4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we measure it (b) we keep it the same (c) we change it
5. 5.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) sugar (c) a balloon (d) cotton wool
6. 6.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a rainbow (c) a solution (d) a magnet
7. 7.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a magnet (c) a clock or timer (d) cotton wool
8. 8.🔍 Which is the odd one out? (a) sawdust (b) food colour (c) table salt (d) glucose powder
9. 9.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a magnet (c) a clock or timer (d) two clear glasses
10. 10.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) two clear glasses (c) a comb (d) a teaspoon
11. 11.🔍 Which is the odd one out? (a) sugar (b) cooking oil (c) chalk powder (d) sawdust
12. 12.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
13. 13.🥄 Which of these dissolves in water? (a) chalk powder (b) sawdust (c) baking soda (d) sand
14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is what we measure. (a) False (b) True
15. 15.True or false: sugar is not needed for the dissolving test. (a) False (b) True
16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) time to dissolve (b) the amount of sugar (c) the amount of water (d) the water temperature
17. 17.⚖️ 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 measure it (c) we change it
18. 18.True or false: cotton wool is not needed for the dissolving test. (a) False (b) True
19. 19.True or false: a teaspoon is not needed for the dissolving test. (a) True (b) False
20. 20.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
21. 21.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
22. 22.⚖️ 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
23. 23.True or false: warm water is not needed for the dissolving test. (a) False (b) True
24. 24.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) time to dissolve (b) the kind of sugar (c) the amount of sugar (d) the water temperature
25. 25.True or false: honey is needed for the dissolving test. (a) True (b) False
26. 26.🔍 Which is the odd one out? (a) glucose powder (b) baking soda (c) table salt (d) sand
27. 27.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) sugar (c) honey (d) warm water
28. 28.True or false: sugar left unstirred dissolves slower. (a) True (b) False
29. 29.True or false: a big sugar cube dissolves faster. (a) True (b) False
30. 30.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
31. 31.True or false: sugar does not dissolve in water. (a) True (b) False
32. 32.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
33. 33.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) the youngest child (c) nobody needs to (d) a grown-up
34. 34.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) sugar in warm water (d) sugar left unstirred
35. 35.⚖️ 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
36. 36.🛟 How should you check if the sugar has dissolved? (a) taste it (b) look for leftover grains (c) smell it closely (d) poke it with a finger
37. 37.True or false: a comb is needed for the dissolving test. (a) False (b) True
38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is kept the same. (a) False (b) True
39. 39.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the water temperature (b) the amount of sugar (c) time to dissolve
40. 40.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it became air (c) it spread in the water (d) it sank as sand

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