Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 368 · 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.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a clock or timer (c) cotton wool (d) a teaspoon
2. 2.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
3. 3.🔍 Which is the odd one out? (a) food colour (b) baking soda (c) cooking oil (d) table salt
4. 4.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
5. 5.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in warm water (c) sugar in icy water (d) a big sugar cube
6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is kept the same. (a) True (b) False
7. 7.🔍 Sand is stirred into water. What do you see after a while? (a) it settles at the bottom (b) it dissolves (c) it turns blue (d) it floats up
8. 8.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
9. 9.True or false: sugar in icy water dissolves faster. (a) True (b) False
10. 10.🛟 How should you check if the sugar has dissolved? (a) taste it (b) smell it closely (c) look for leftover grains (d) poke it with a finger
11. 11.True or false: sugar stirred well dissolves slower. (a) False (b) True
12. 12.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) two clear glasses (c) a mirror (d) cold water
13. 13.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) slower (c) faster (d) the same
14. 14.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
15. 15.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
16. 16.🔍 Which is the odd one out? (a) chalk powder (b) baking soda (c) cooking oil (d) sawdust
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) time to dissolve (b) the amount of water (c) the water temperature
18. 18.🥄 Which of these dissolves slower? (a) a big sugar cube (b) powdered sugar (c) sugar stirred well (d) sugar in warm water
19. 19.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
20. 20.⚖️ 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
21. 21.⚖️ 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
22. 22.⚖️ 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
23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we keep it the same (b) we measure it (c) we change it
24. 24.🧺 Which of these is needed for the dissolving test? (a) sugar (b) cotton wool (c) a balloon (d) a mirror
25. 25.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
26. 26.🔍 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
27. 27.🧺 Which of these is needed for the dissolving test? (a) a comb (b) honey (c) cold water (d) a balloon
28. 28.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) some stays undissolved (c) the water turns solid (d) the sugar turns to salt
29. 29.True or false: a teaspoon is not needed for the dissolving test. (a) True (b) False
30. 30.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
31. 31.🥄 Which of these dissolves in water? (a) sand (b) chalk powder (c) food colour (d) cooking oil
32. 32.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) particles move faster (c) cold water is wet (d) sugar likes the dark
33. 33.True or false: warm water is not needed for the dissolving test. (a) True (b) False
34. 34.🧺 Which of these is not needed for the dissolving test? (a) a balloon (b) cold water (c) warm water (d) sugar
35. 35.True or false: sand dissolves in water. (a) True (b) False
36. 36.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) a clock or timer (c) sugar (d) a teaspoon
37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is the one thing we change. (a) False (b) True
38. 38.🧺 Which of these is needed for the dissolving test? (a) honey (b) a balloon (c) a mirror (d) warm water
39. 39.🥄 Which of these dissolves in water? (a) sawdust (b) baking soda (c) chalk powder (d) sand
40. 40.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) cotton wool (c) two clear glasses (d) honey

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