Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 821 · 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.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
2. 2.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) sugar (c) cold water (d) cotton wool
3. 3.🔮 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
4. 4.⚖️ 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 stirring
5. 5.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
6. 6.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
7. 7.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) slower (c) not at all (d) faster
8. 8.⚖️ 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 keep it the same (c) we measure it
9. 9.🥄 Which of these dissolves in water? (a) sawdust (b) small pebbles (c) sand (d) food colour
10. 10.True or false: sugar stirred well dissolves faster. (a) False (b) True
11. 11.🥄 Which of these does not dissolve in water? (a) sugar (b) sand (c) food colour (d) glucose powder
12. 12.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) cold water (c) a clock or timer (d) a balloon
13. 13.⚖️ 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 water
14. 14.True or false: powdered sugar dissolves faster. (a) False (b) True
15. 15.True or false: a balloon is not needed for the dissolving test. (a) False (b) True
16. 16.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
17. 17.⚖️ 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 stirring (d) the water temperature
18. 18.🔮 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) all of it dissolves (d) the sugar turns to salt
19. 19.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) sugar stirred well (d) sugar left unstirred
20. 20.True or false: sugar left unstirred dissolves faster. (a) True (b) False
21. 21.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) warm water is thicker (c) sugar likes the dark (d) particles move faster
22. 22.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a teaspoon (c) a clock or timer (d) honey
23. 23.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
24. 24.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a mirror (b) sugar (c) two clear glasses (d) warm water
25. 25.True or false: cold water is needed for the dissolving test. (a) False (b) True
26. 26.🔍 Which is the odd one out? (a) sugar (b) food colour (c) chalk powder (d) table salt
27. 27.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
28. 28.⚖️ 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 change it (c) we keep it the same
29. 29.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
30. 30.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
31. 31.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
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.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) honey (c) a clock or timer (d) a mirror
34. 34.🥄 Which of these does not dissolve in water? (a) sugar (b) glucose powder (c) chalk powder (d) table salt
35. 35.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) the youngest child (c) a friend who is running (d) a grown-up
36. 36.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we measure it (b) we keep it the same (c) we change it
37. 37.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
38. 38.True or false: sugar is not needed for the dissolving test. (a) False (b) True
39. 39.🔍 Sand is stirred into water. What do you see after a while? (a) it settles at the bottom (b) it floats up (c) it turns blue (d) it dissolves
40. 40.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False

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