Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 616 · 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 is the odd one out? (a) table salt (b) sugar (c) glucose powder (d) cooking oil
2. 2.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar stirred well (d) sugar in icy water
3. 3.True or false: sugar stirred well dissolves faster. (a) False (b) True
4. 4.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) sugar (c) a mirror (d) a teaspoon
5. 5.True or false: a big sugar cube dissolves faster. (a) False (b) True
6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we keep it the same (b) we measure it (c) we change it
7. 7.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) add more water (c) stir it more (d) let the water evaporate
8. 8.⚖️ 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 keep it the same (c) we measure it
9. 9.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it sank as sand (c) it became air (d) it vanished for ever
10. 10.🔍 Which is the odd one out? (a) table salt (b) sand (c) food colour (d) baking soda
11. 11.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) neither of them (c) powdered sugar (d) both the same
12. 12.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
13. 13.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
14. 14.🧺 Which of these is needed for the dissolving test? (a) honey (b) warm water (c) cotton wool (d) a mirror
15. 15.⚖️ 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 measure it (c) we change it
16. 16.True or false: two clear glasses is needed for the dissolving test. (a) False (b) True
17. 17.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
18. 18.True or false: sawdust does not dissolve in water. (a) False (b) True
19. 19.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) cold water (c) sugar (d) cotton wool
20. 20.True or false: cold water is not needed for the dissolving test. (a) False (b) True
21. 21.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
22. 22.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
23. 23.True or false: sand dissolves in water. (a) True (b) False
24. 24.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
25. 25.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we change it (b) we measure it (c) we keep it the same
26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the water temperature (b) the amount of sugar (c) the stirring (d) the kind of sugar
27. 27.True or false: baking soda does not dissolve in water. (a) False (b) True
28. 28.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) the sugar turns to salt (c) the water turns solid (d) all of it dissolves
29. 29.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
30. 30.True or false: a comb is needed for the dissolving test. (a) True (b) False
31. 31.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
32. 32.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a magnet (c) cold water (d) honey
33. 33.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
34. 34.🥄 Which of these dissolves in water? (a) cooking oil (b) sand (c) chalk powder (d) table salt
35. 35.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the stirring (b) the water temperature (c) time to dissolve (d) the amount of sugar
36. 36.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a mirror (c) cold water (d) warm water
37. 37.🔍 Which is the odd one out? (a) glucose powder (b) small pebbles (c) table salt (d) food colour
38. 38.🥄 Which of these dissolves in water? (a) chalk powder (b) small pebbles (c) sugar (d) sand
39. 39.🥄 Which of these dissolves slower? (a) sugar in warm water (b) a big sugar cube (c) powdered sugar (d) sugar stirred well
40. 40.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster

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