Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 197 · 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.True or false: cotton wool is needed for the dissolving test. (a) True (b) False
2. 2.True or false: powdered sugar dissolves slower. (a) False (b) True
3. 3.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) sugar (c) a comb (d) a magnet
4. 4.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) the youngest child (c) nobody needs to (d) a friend who is running
5. 5.🥄 Which of these dissolves in water? (a) small pebbles (b) cooking oil (c) chalk powder (d) glucose powder
6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the stirring (b) time to dissolve (c) the water temperature (d) the amount of sugar
7. 7.True or false: small pebbles does not dissolve in water. (a) True (b) False
8. 8.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a teaspoon (c) cotton wool (d) sugar
9. 9.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) warm water (c) honey (d) cotton wool
10. 10.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a clock or timer (c) cold water (d) a balloon
11. 11.⚖️ 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 measure it (c) we keep it the same
12. 12.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it turns blue (c) it floats up (d) it settles at the bottom
13. 13.True or false: sugar left unstirred dissolves faster. (a) False (b) True
14. 14.⚖️ 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 water (c) time to dissolve
15. 15.🥄 Which of these does not dissolve in water? (a) cooking oil (b) table salt (c) sugar (d) food colour
16. 16.⚖️ 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 keep it the same (c) we measure it
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is what we measure. (a) True (b) False
18. 18.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) powdered sugar (d) a big sugar cube
19. 19.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
20. 20.True or false: powdered sugar dissolves faster. (a) True (b) False
21. 21.True or false: sugar stirred well dissolves faster. (a) True (b) False
22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) time to dissolve (b) the stirring (c) the water temperature
23. 23.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
24. 24.🧺 Which of these is needed for the dissolving test? (a) a comb (b) cold water (c) a mirror (d) a balloon
25. 25.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
26. 26.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it vanished for ever (c) it spread in the water (d) it became air
27. 27.True or false: sand does not dissolve in water. (a) False (b) True
28. 28.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) smell it closely (c) taste it (d) look for leftover grains
29. 29.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) sugar in warm water (d) sugar left unstirred
30. 30.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
31. 31.True or false: a mirror is needed for the dissolving test. (a) False (b) True
32. 32.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
33. 33.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
34. 34.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar stirred well (d) sugar in icy water
35. 35.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
36. 36.True or false: baking soda dissolves in water. (a) True (b) False
37. 37.⚖️ 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 kind of sugar (c) time to dissolve (d) the amount of water
38. 38.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) cotton wool (c) cold water (d) a teaspoon
39. 39.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) a big sugar cube (d) sugar stirred well
40. 40.True or false: sawdust does not dissolve in water. (a) False (b) True

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