Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 883 · 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) chalk powder (b) sawdust (c) cooking oil (d) table salt
2. 2.⚖️ 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 change it (c) we measure it
3. 3.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
4. 4.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
5. 5.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in icy water (c) sugar in warm water (d) powdered sugar
6. 6.True or false: sugar left unstirred dissolves slower. (a) False (b) True
7. 7.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
8. 8.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is the one thing we change. (a) True (b) False
9. 9.🔮 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
10. 10.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
11. 11.🥄 Which of these does not dissolve in water? (a) sugar (b) glucose powder (c) food colour (d) chalk powder
12. 12.True or false: a mirror is needed for the dissolving test. (a) False (b) True
13. 13.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) look for leftover grains (c) smell it closely (d) taste it
14. 14.⚖️ 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 sugar (b) the water temperature (c) the kind of sugar (d) time to dissolve
15. 15.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar left unstirred (d) sugar stirred well
16. 16.True or false: sugar stirred well dissolves slower. (a) False (b) True
17. 17.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a grown-up (c) the youngest child (d) a friend who is running
18. 18.🥄 Which of these does not dissolve in water? (a) table salt (b) sugar (c) small pebbles (d) baking soda
19. 19.⚖️ 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 keep it the same (c) we measure it
20. 20.🔍 How can you get the salt back from salty water? (a) add more water (b) stir it more (c) let the water evaporate (d) keep it in a fridge
21. 21.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
22. 22.True or false: sugar is not needed for the dissolving test. (a) True (b) False
23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the water temperature (b) the amount of sugar (c) time to dissolve
24. 24.True or false: sugar is needed for the dissolving test. (a) True (b) False
25. 25.⚖️ 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
26. 26.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
27. 27.⚖️ 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) True (b) False
28. 28.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) a comb (c) cotton wool (d) a clock or timer
29. 29.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
30. 30.True or false: sugar left unstirred dissolves faster. (a) True (b) False
31. 31.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
32. 32.⚖️ 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
33. 33.True or false: honey is not needed for the dissolving test. (a) True (b) False
34. 34.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) cotton wool (c) warm water (d) a clock or timer
35. 35.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) cold water is wet (c) sugar likes the dark (d) warm water is thicker
36. 36.True or false: small pebbles dissolves in water. (a) True (b) False
37. 37.⚖️ 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) False (b) True
38. 38.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
39. 39.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it sank as sand (c) it spread in the water (d) it became air
40. 40.⚖️ 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

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