Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 321 · 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) cold water (b) warm water (c) a teaspoon (d) honey
2. 2.⚖️ 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 measure it (c) we keep it the same
3. 3.🛟 How should you check if the sugar has dissolved? (a) taste it (b) poke it with a finger (c) smell it closely (d) look for leftover grains
4. 4.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) cold water (c) warm water (d) cotton wool
5. 5.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) cold water (c) a teaspoon (d) a magnet
6. 6.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
7. 7.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
8. 8.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a magnet (c) sugar (d) two clear glasses
9. 9.True or false: a clock or timer is not needed for the dissolving test. (a) True (b) False
10. 10.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
11. 11.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a teaspoon (c) honey (d) a comb
12. 12.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a clock or timer (c) sugar (d) cotton wool
13. 13.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) not at all (d) faster
14. 14.🔍 Which is the odd one out? (a) cooking oil (b) table salt (c) sugar (d) food colour
15. 15.True or false: a big sugar cube dissolves slower. (a) True (b) False
16. 16.⚖️ 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 water (b) the amount of sugar (c) the water temperature (d) time to dissolve
17. 17.🥄 Which of these does not dissolve in water? (a) table salt (b) glucose powder (c) sand (d) sugar
18. 18.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
19. 19.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) a balloon (c) honey (d) cold water
20. 20.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
21. 21.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) add more water (c) let the water evaporate (d) stir it more
22. 22.🧺 Which of these is needed for the dissolving test? (a) warm water (b) a balloon (c) a comb (d) honey
23. 23.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) nobody needs to (c) the youngest child (d) a grown-up
24. 24.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
25. 25.True or false: a balloon is not needed for the dissolving test. (a) False (b) True
26. 26.True or false: sugar in icy water dissolves slower. (a) False (b) True
27. 27.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) a big sugar cube (d) sugar stirred well
28. 28.⚖️ 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 change it (c) we keep it the same
29. 29.🥄 Which of these dissolves slower? (a) sugar left unstirred (b) sugar stirred well (c) sugar in warm water (d) powdered sugar
30. 30.⚖️ 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
31. 31.🔍 Which is the odd one out? (a) glucose powder (b) small pebbles (c) table salt (d) food colour
32. 32.True or false: sugar in warm water dissolves slower. (a) False (b) True
33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) False (b) True
34. 34.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) warm water (c) sugar (d) a comb
35. 35.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) warm water (c) a mirror (d) cold water
36. 36.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it settles at the bottom (c) it floats up (d) it dissolves
37. 37.True or false: a mirror is needed for the dissolving test. (a) False (b) True
38. 38.🔍 Which is the odd one out? (a) cooking oil (b) glucose powder (c) small pebbles (d) sand
39. 39.🔍 Which is the odd one out? (a) small pebbles (b) sugar (c) cooking oil (d) sand
40. 40.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it became air (c) it vanished for ever (d) it spread in the water

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