Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 636 · 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.⚖️ 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
2. 2.⚖️ 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 amount of water
3. 3.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
4. 4.⚖️ 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 keep it the same (c) we measure it
5. 5.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) sugar in warm water (d) a big sugar cube
6. 6.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
7. 7.🔍 Which is the odd one out? (a) sawdust (b) chalk powder (c) table salt (d) sand
8. 8.🔍 How can you get the salt back from salty water? (a) add more water (b) let the water evaporate (c) keep it in a fridge (d) stir it more
9. 9.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
10. 10.🧺 Which of these is needed for the dissolving test? (a) honey (b) warm water (c) a balloon (d) a magnet
11. 11.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it sank as sand (c) it spread in the water (d) it vanished for ever
12. 12.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is what we measure. (a) True (b) False
13. 13.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
14. 14.⚖️ 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 measure it (c) we change it
15. 15.True or false: warm water is needed for the dissolving test. (a) True (b) False
16. 16.True or false: sugar stirred well dissolves faster. (a) True (b) False
17. 17.True or false: a balloon is needed for the dissolving test. (a) False (b) True
18. 18.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
19. 19.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is kept the same. (a) True (b) False
20. 20.True or false: glucose powder does not dissolve in water. (a) True (b) False
21. 21.🥄 Which of these does not dissolve in water? (a) sugar (b) food colour (c) sand (d) glucose powder
22. 22.🥄 Which of these does not dissolve in water? (a) table salt (b) small pebbles (c) baking soda (d) sugar
23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of water (b) time to dissolve (c) the water temperature
24. 24.True or false: cotton wool is needed for the dissolving test. (a) False (b) True
25. 25.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) smell it closely (c) poke it with a finger (d) taste it
26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is the one thing we change. (a) False (b) True
27. 27.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
28. 28.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) cold water (c) a teaspoon (d) a balloon
29. 29.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) both the same (c) powdered sugar (d) the sugar cube
30. 30.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) the sugar turns to salt (c) some stays undissolved (d) the water turns solid
31. 31.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a teaspoon (c) a clock or timer (d) cotton wool
32. 32.🔍 Which is the odd one out? (a) glucose powder (b) sugar (c) sand (d) table salt
33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we measure it (b) we keep it the same (c) we change it
34. 34.True or false: sugar stirred well dissolves slower. (a) True (b) False
35. 35.True or false: sugar in icy water dissolves slower. (a) True (b) False
36. 36.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) warm water (c) a teaspoon (d) a mirror
37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is the one thing we change. (a) True (b) False
38. 38.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
39. 39.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) powdered sugar (d) sugar in icy water
40. 40.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) warm water (c) sugar (d) honey

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