Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 784 · 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 of these is not needed for the dissolving test? (a) a teaspoon (b) cotton wool (c) warm water (d) a clock or timer
2. 2.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
3. 3.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it vanished for ever (c) it spread in the water (d) it sank as sand
4. 4.🔍 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
5. 5.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
6. 6.True or false: a big sugar cube dissolves slower. (a) False (b) True
7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we change it (b) we measure it (c) we keep it the same
8. 8.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) the sugar cube (c) powdered sugar (d) both the same
9. 9.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
10. 10.True or false: table salt dissolves in water. (a) True (b) False
11. 11.True or false: powdered sugar dissolves slower. (a) False (b) True
12. 12.⚖️ 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) the water temperature (c) time to dissolve
13. 13.⚖️ 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
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.🥄 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
16. 16.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) warm water (c) a teaspoon (d) two clear glasses
17. 17.🔍 Which is the odd one out? (a) cooking oil (b) sand (c) chalk powder (d) food colour
18. 18.🔍 Which is the odd one out? (a) sand (b) baking soda (c) small pebbles (d) cooking oil
19. 19.True or false: sugar is not needed for the dissolving test. (a) True (b) False
20. 20.True or false: baking soda dissolves in water. (a) False (b) True
21. 21.🔍 Which is the odd one out? (a) glucose powder (b) sand (c) cooking oil (d) chalk powder
22. 22.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
23. 23.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) the same (c) not at all (d) slower
24. 24.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
25. 25.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a grown-up (c) a friend who is running (d) nobody needs to
26. 26.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a balloon (c) a clock or timer (d) sugar
27. 27.🥄 Which of these dissolves in water? (a) sand (b) small pebbles (c) glucose powder (d) sawdust
28. 28.🥄 Which of these dissolves slower? (a) sugar stirred well (b) powdered sugar (c) sugar in warm water (d) sugar in icy water
29. 29.True or false: small pebbles dissolves in water. (a) True (b) False
30. 30.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) honey (c) a teaspoon (d) warm water
31. 31.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
32. 32.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
33. 33.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
34. 34.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the stirring (b) the amount of sugar (c) the amount of water (d) time to dissolve
35. 35.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
36. 36.True or false: cooking oil does not dissolve in water. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) sugar (b) baking soda (c) chalk powder (d) food colour
38. 38.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it floats up (c) it settles at the bottom (d) it turns blue
39. 39.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
40. 40.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed

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