Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 329 · 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.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) nobody needs to (c) a friend who is running (d) the youngest child
2. 2.True or false: table salt does not dissolve in water. (a) True (b) False
3. 3.🔍 Which is the odd one out? (a) glucose powder (b) chalk powder (c) sugar (d) table salt
4. 4.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) powdered sugar (d) sugar left unstirred
5. 5.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it turns blue (c) it settles at the bottom (d) it floats up
6. 6.🥄 Which of these dissolves in water? (a) chalk powder (b) glucose powder (c) cooking oil (d) sand
7. 7.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
8. 8.True or false: sawdust does not dissolve in water. (a) True (b) False
9. 9.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we keep it the same (c) we measure it
11. 11.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) some stays undissolved (c) the sugar turns to salt (d) the water turns solid
12. 12.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is what we measure. (a) True (b) False
13. 13.⚖️ 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) True (b) False
14. 14.True or false: sugar in icy water dissolves faster. (a) False (b) True
15. 15.🔍 Which is the odd one out? (a) sand (b) small pebbles (c) sugar (d) cooking oil
16. 16.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
17. 17.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in icy water (c) powdered sugar (d) sugar in warm water
18. 18.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
19. 19.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is kept the same. (a) True (b) False
20. 20.⚖️ 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
21. 21.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it sank as sand (c) it vanished for ever (d) it became air
22. 22.True or false: a clock or timer is needed for the dissolving test. (a) True (b) False
23. 23.🔍 Which is the odd one out? (a) cooking oil (b) chalk powder (c) table salt (d) sawdust
24. 24.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
25. 25.⚖️ 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
26. 26.🔍 Which is the odd one out? (a) baking soda (b) table salt (c) sand (d) sugar
27. 27.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
28. 28.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a teaspoon (c) sugar (d) a magnet
29. 29.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) powdered sugar (c) neither of them (d) the sugar cube
30. 30.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) taste it (c) look for leftover grains (d) smell it closely
31. 31.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) warm water (c) a comb (d) a clock or timer
32. 32.True or false: glucose powder dissolves in water. (a) True (b) False
33. 33.True or false: sand dissolves in water. (a) False (b) True
34. 34.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we change it (b) we keep it the same (c) we measure it
35. 35.🧺 Which of these is not needed for the dissolving test? (a) a mirror (b) two clear glasses (c) cold water (d) a clock or timer
36. 36.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a comb (c) sugar (d) a teaspoon
37. 37.True or false: a mirror is not needed for the dissolving test. (a) True (b) False
38. 38.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
39. 39.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
40. 40.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) sugar stirred well (d) sugar left unstirred

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