Dissolving Experiment Worksheet: Warm and Cold Water

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

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