Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 605 · 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.True or false: a magnet is needed for the dissolving test. (a) True (b) False
2. 2.🥄 Which of these dissolves slower? (a) sugar in icy water (b) sugar stirred well (c) sugar in warm water (d) powdered sugar
3. 3.🔍 Which is the odd one out? (a) sugar (b) baking soda (c) food colour (d) small pebbles
4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we measure it (b) we change it (c) we keep it the same
5. 5.True or false: food colour dissolves in water. (a) True (b) False
6. 6.⚖️ 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) time to dissolve (d) the water temperature
7. 7.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it vanished for ever (c) it became air (d) it spread in the water
8. 8.⚖️ 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 change it (c) we measure it
9. 9.🥄 Which of these dissolves in water? (a) chalk powder (b) sugar (c) sand (d) cooking oil
10. 10.🔍 How can you get the salt back from salty water? (a) add more water (b) keep it in a fridge (c) let the water evaporate (d) stir it more
11. 11.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
12. 12.🧺 Which of these is needed for the dissolving test? (a) honey (b) a comb (c) a balloon (d) sugar
13. 13.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a mirror (b) a teaspoon (c) a clock or timer (d) warm water
14. 14.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) cotton wool (c) a balloon (d) cold water
15. 15.🔍 Sand is stirred into water. What do you see after a while? (a) it settles at the bottom (b) it dissolves (c) it floats up (d) it turns blue
16. 16.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) nobody needs to (c) a grown-up (d) the youngest child
17. 17.True or false: sugar stirred well dissolves slower. (a) False (b) True
18. 18.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
19. 19.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
20. 20.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
21. 21.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
22. 22.True or false: sugar in warm water dissolves faster. (a) True (b) False
23. 23.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
24. 24.True or false: food colour does not dissolve in water. (a) False (b) True
25. 25.🥄 Which of these dissolves in water? (a) chalk powder (b) baking soda (c) sawdust (d) sand
26. 26.True or false: two clear glasses is not needed for the dissolving test. (a) False (b) True
27. 27.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar stirred well (d) sugar left unstirred
28. 28.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) smell it closely (c) look for leftover grains (d) taste it
29. 29.True or false: cooking oil does not dissolve in water. (a) True (b) False
30. 30.⚖️ 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
31. 31.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
32. 32.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
33. 33.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) the water turns solid (c) the sugar turns to salt (d) all of it dissolves
34. 34.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
35. 35.True or false: sand does not dissolve in water. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) baking soda (b) food colour (c) table salt (d) cooking oil
37. 37.⚖️ 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) False (b) True
38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we measure it (b) we change it (c) we keep it the same
39. 39.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a clock or timer (c) warm water (d) a magnet
40. 40.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) slower (c) the same (d) not at all

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