Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 373 · 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.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) not at all (d) faster
2. 2.True or false: sugar in icy water dissolves faster. (a) True (b) False
3. 3.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a teaspoon (c) cold water (d) a comb
4. 4.🥄 Which of these dissolves slower? (a) sugar stirred well (b) a big sugar cube (c) sugar in warm water (d) powdered sugar
5. 5.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) a friend who is running (c) nobody needs to (d) the youngest child
6. 6.⚖️ 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 water (c) time to dissolve
7. 7.⚖️ 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
8. 8.🔍 Which is the odd one out? (a) baking soda (b) food colour (c) table salt (d) sawdust
9. 9.🔍 Sand is stirred into water. What do you see after a while? (a) it settles at the bottom (b) it turns blue (c) it dissolves (d) it floats up
10. 10.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) smell it closely (c) taste it (d) poke it with a finger
11. 11.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) the water turns solid (c) all of it dissolves (d) the sugar turns to salt
12. 12.True or false: sugar left unstirred dissolves faster. (a) True (b) False
13. 13.🧺 Which of these is not needed for the dissolving test? (a) a balloon (b) warm water (c) sugar (d) a clock or timer
14. 14.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
15. 15.True or false: cooking oil dissolves in water. (a) True (b) False
16. 16.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
17. 17.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
18. 18.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
19. 19.True or false: sugar left unstirred dissolves slower. (a) False (b) True
20. 20.🔍 Which is the odd one out? (a) sand (b) baking soda (c) sugar (d) food colour
21. 21.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar stirred well (c) sugar in icy water (d) sugar left unstirred
22. 22.🥄 Which of these does not dissolve in water? (a) table salt (b) sugar (c) glucose powder (d) chalk powder
23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) False (b) True
24. 24.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar left unstirred (c) sugar in warm water (d) powdered sugar
25. 25.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it vanished for ever (c) it spread in the water (d) it sank as sand
26. 26.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
27. 27.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a clock or timer (c) a magnet (d) a teaspoon
28. 28.True or false: sand does not dissolve in water. (a) False (b) True
29. 29.True or false: honey is not needed for the dissolving test. (a) False (b) True
30. 30.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) powdered sugar (c) both the same (d) the sugar cube
31. 31.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of sugar (b) time to dissolve (c) the amount of water (d) the stirring
32. 32.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
33. 33.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
34. 34.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in warm water (c) sugar in icy water (d) powdered sugar
35. 35.🥄 Which of these dissolves in water? (a) sand (b) cooking oil (c) small pebbles (d) glucose powder
36. 36.True or false: a mirror is not needed for the dissolving test. (a) True (b) False
37. 37.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
38. 38.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
39. 39.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
40. 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is what we measure. (a) False (b) True

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