Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 865 · 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.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is what we measure. (a) False (b) True
2. 2.True or false: cooking oil does not dissolve in water. (a) False (b) True
3. 3.🧺 Which of these is needed for the dissolving test? (a) a comb (b) warm water (c) honey (d) a balloon
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) all of it dissolves (c) some stays undissolved (d) the sugar turns to salt
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) food colour (b) glucose powder (c) chalk powder (d) baking soda
7. 7.True or false: cotton wool is not needed for the dissolving test. (a) True (b) False
8. 8.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) sugar (c) two clear glasses (d) cotton wool
9. 9.🔍 Which is the odd one out? (a) baking soda (b) cooking oil (c) sand (d) small pebbles
10. 10.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a comb (b) cold water (c) warm water (d) sugar
11. 11.True or false: sugar stirred well dissolves slower. (a) False (b) True
12. 12.🥄 Which of these dissolves slower? (a) powdered sugar (b) a big sugar cube (c) sugar in warm water (d) sugar stirred well
13. 13.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
14. 14.⚖️ 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) True (b) False
15. 15.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) cold water (c) a magnet (d) a clock or timer
16. 16.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
17. 17.⚖️ 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 amount of water (d) time to dissolve
18. 18.True or false: glucose powder does not dissolve in water. (a) False (b) True
19. 19.True or false: a clock or timer is not needed for the dissolving test. (a) False (b) True
20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is the one thing we change. (a) False (b) True
21. 21.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) two clear glasses (c) a comb (d) cotton wool
22. 22.🥄 Which of these dissolves in water? (a) cooking oil (b) glucose powder (c) sawdust (d) sand
23. 23.⚖️ 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 measure it (c) we change it
24. 24.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) warm water (c) a clock or timer (d) a balloon
25. 25.⚖️ 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
26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we change it (b) we keep it the same (c) we measure it
27. 27.🧺 Which of these is needed for the dissolving test? (a) sugar (b) a comb (c) a balloon (d) cotton wool
28. 28.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) sugar stirred well (d) a big sugar cube
29. 29.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
30. 30.⚖️ 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) the stirring (d) time to dissolve
31. 31.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it vanished for ever (c) it sank as sand (d) it became air
32. 32.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) faster (c) the same (d) slower
33. 33.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
34. 34.True or false: a balloon is needed for the dissolving test. (a) False (b) True
35. 35.🥄 Which of these dissolves faster? (a) sugar in warm water (b) sugar in icy water (c) a big sugar cube (d) sugar left unstirred
36. 36.⚖️ 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
37. 37.🔍 How can you get the salt back from salty water? (a) stir it more (b) keep it in a fridge (c) add more water (d) let the water evaporate
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 turns blue (b) it settles at the bottom (c) it dissolves (d) it floats up
40. 40.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed

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