Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 533 · 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 is not needed for the dissolving test? (a) a magnet (b) warm water (c) two clear glasses (d) cold water
2. 2.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) faster (d) not at all
3. 3.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) sugar likes the dark (c) particles move faster (d) cold water is wet
4. 4.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) the sugar turns to salt (c) all of it dissolves (d) some stays undissolved
5. 5.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we measure it (c) we keep it the same
6. 6.🔍 Which is the odd one out? (a) sand (b) food colour (c) small pebbles (d) sawdust
7. 7.🥄 Which of these dissolves slower? (a) sugar in warm water (b) a big sugar cube (c) sugar stirred well (d) powdered sugar
8. 8.⚖️ 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) time to dissolve (c) the amount of sugar
9. 9.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a grown-up (c) the youngest child (d) a friend who is running
10. 10.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
11. 11.True or false: a big sugar cube dissolves slower. (a) False (b) True
12. 12.🔍 Which is the odd one out? (a) glucose powder (b) sugar (c) small pebbles (d) table salt
13. 13.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
14. 14.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) a balloon (c) a comb (d) two clear glasses
15. 15.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
16. 16.🥄 Which of these does not dissolve in water? (a) sugar (b) sand (c) food colour (d) glucose powder
17. 17.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it settles at the bottom (c) it turns blue (d) it dissolves
18. 18.⚖️ 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
19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) sugar (c) a magnet (d) cold water
20. 20.True or false: a clock or timer is not needed for the dissolving test. (a) True (b) False
21. 21.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is what we measure. (a) True (b) False
23. 23.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) warm water (c) a teaspoon (d) a comb
24. 24.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a mirror (c) two clear glasses (d) warm water
25. 25.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
26. 26.🥄 Which of these does not dissolve in water? (a) chalk powder (b) sugar (c) table salt (d) baking soda
27. 27.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar in icy water (d) sugar stirred well
28. 28.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
29. 29.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
30. 30.True or false: baking soda does not dissolve in water. (a) True (b) False
31. 31.🥄 Which of these does not dissolve in water? (a) glucose powder (b) table salt (c) baking soda (d) small pebbles
32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we keep it the same (b) we change it (c) we measure it
33. 33.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
34. 34.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we keep it the same (b) we change it (c) we measure it
35. 35.🔍 Which is the odd one out? (a) sugar (b) table salt (c) food colour (d) chalk powder
36. 36.True or false: cotton wool is needed for the dissolving test. (a) True (b) False
37. 37.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) cotton wool (c) warm water (d) sugar
38. 38.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
39. 39.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) two clear glasses (c) warm water (d) a balloon
40. 40.⚖️ 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) the stirring (c) time to dissolve (d) the kind of sugar

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