Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 729 · 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? Which of these is kept the same? (a) the water temperature (b) the stirring (c) time to dissolve
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.🥄 Which of these does not dissolve in water? (a) chalk powder (b) baking soda (c) table salt (d) sugar
4. 4.🔍 Which is the odd one out? (a) sand (b) cooking oil (c) sugar (d) sawdust
5. 5.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) honey (c) cold water (d) sugar
6. 6.🧺 Which of these is not needed for the dissolving test? (a) a mirror (b) a clock or timer (c) warm water (d) two clear glasses
7. 7.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
8. 8.🥄 Which of these dissolves slower? (a) sugar stirred well (b) powdered sugar (c) sugar in warm water (d) sugar left unstirred
9. 9.True or false: glucose powder dissolves in water. (a) True (b) False
10. 10.True or false: a mirror is needed for the dissolving test. (a) True (b) False
11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we change it (b) we measure it (c) we keep it the same
12. 12.True or false: two clear glasses is needed for the dissolving test. (a) True (b) False
13. 13.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) taste it (c) poke it with a finger (d) smell it closely
14. 14.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
15. 15.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
16. 16.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
17. 17.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) the youngest child (c) a friend who is running (d) nobody needs to
18. 18.True or false: cold water is not needed for the dissolving test. (a) True (b) False
19. 19.True or false: a teaspoon is not needed for the dissolving test. (a) True (b) False
20. 20.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) sugar in warm water (d) a big sugar cube
21. 21.🥄 Which of these dissolves faster? (a) a big sugar cube (b) powdered sugar (c) sugar in icy water (d) sugar left unstirred
22. 22.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) a big sugar cube (d) sugar stirred well
23. 23.🔮 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 water turns solid (c) some stays undissolved (d) the sugar turns to salt
24. 24.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) warm water (c) a magnet (d) a teaspoon
25. 25.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) powdered sugar (c) both the same (d) the sugar cube
26. 26.True or false: sugar left unstirred dissolves faster. (a) True (b) False
27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) time to dissolve (b) the amount of water (c) the water temperature (d) the amount of sugar
28. 28.True or false: small pebbles dissolves in water. (a) False (b) True
29. 29.True or false: a balloon is not needed for the dissolving test. (a) True (b) False
30. 30.⚖️ 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
31. 31.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
32. 32.🥄 Which of these dissolves in water? (a) sugar (b) sand (c) cooking oil (d) sawdust
33. 33.⚖️ 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 stirring (c) time to dissolve (d) the amount of water
34. 34.🥄 Which of these does not dissolve in water? (a) table salt (b) sugar (c) glucose powder (d) sawdust
35. 35.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a comb (c) a mirror (d) cold water
36. 36.True or false: two clear glasses is not needed for the dissolving test. (a) False (b) True
37. 37.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it dissolves (c) it settles at the bottom (d) it turns blue
38. 38.🔍 Which is the odd one out? (a) sand (b) small pebbles (c) table salt (d) sawdust
39. 39.True or false: a big sugar cube dissolves faster. (a) True (b) False
40. 40.True or false: sugar in icy water dissolves faster. (a) False (b) True

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