Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 122 · 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 dissolves slower? (a) sugar in warm water (b) sugar in icy water (c) powdered sugar (d) sugar stirred well
2. 2.True or false: sugar dissolves in water. (a) False (b) True
3. 3.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it became air (c) it spread in the water (d) it vanished for ever
4. 4.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
5. 5.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
6. 6.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) True (b) False
8. 8.🔍 How can you get the salt back from salty water? (a) stir it more (b) let the water evaporate (c) keep it in a fridge (d) add more water
9. 9.🥄 Which of these dissolves faster? (a) powdered sugar (b) sugar in icy water (c) sugar left unstirred (d) a big sugar cube
10. 10.True or false: sugar in icy water dissolves slower. (a) False (b) True
11. 11.🛟 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
12. 12.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
13. 13.⚖️ 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 stirring (c) the amount of water (d) time to dissolve
14. 14.🥄 Which of these does not dissolve in water? (a) baking soda (b) chalk powder (c) glucose powder (d) food colour
15. 15.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
16. 16.🧺 Which of these is needed for the dissolving test? (a) a comb (b) cotton wool (c) warm water (d) a magnet
17. 17.True or false: a balloon is needed for the dissolving test. (a) False (b) True
18. 18.🥄 Which of these does not dissolve in water? (a) table salt (b) cooking oil (c) baking soda (d) sugar
19. 19.True or false: a magnet is needed for the dissolving test. (a) False (b) True
20. 20.True or false: sand does not dissolve in water. (a) False (b) True
21. 21.🔍 Which is the odd one out? (a) sawdust (b) chalk powder (c) small pebbles (d) food colour
22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we keep it the same (b) we change it (c) we measure it
23. 23.🥄 Which of these dissolves in water? (a) sugar (b) chalk powder (c) small pebbles (d) sawdust
24. 24.⚖️ 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
25. 25.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the water temperature (b) the amount of water (c) the kind of sugar (d) time to dissolve
26. 26.True or false: small pebbles does not dissolve in water. (a) True (b) False
27. 27.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) cold water (c) warm water (d) cotton wool
28. 28.True or false: sugar in warm water dissolves slower. (a) True (b) False
29. 29.True or false: honey is 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 kept the same? (a) time to dissolve (b) the water temperature (c) the amount of sugar
31. 31.🔮 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) all of it dissolves (d) the water turns solid
32. 32.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar in warm water (d) sugar in icy water
33. 33.True or false: a big sugar cube dissolves faster. (a) True (b) False
34. 34.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we measure it (b) we keep it the same (c) we change it
35. 35.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) honey (c) a clock or timer (d) a mirror
36. 36.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) cold water (c) a mirror (d) a teaspoon
37. 37.🧺 Which of these is needed for the dissolving test? (a) cold water (b) cotton wool (c) a mirror (d) a magnet
38. 38.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
39. 39.🔍 Which is the odd one out? (a) sand (b) baking soda (c) sugar (d) glucose powder
40. 40.True or false: sugar in warm water dissolves faster. (a) True (b) False

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