Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 923 · 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.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
2. 2.🥄 Which of these does not dissolve in water? (a) food colour (b) table salt (c) small pebbles (d) baking soda
3. 3.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) cotton wool (c) a magnet (d) a teaspoon
4. 4.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a comb (c) two clear glasses (d) cold water
5. 5.🔍 Which is the odd one out? (a) cooking oil (b) small pebbles (c) sand (d) glucose powder
6. 6.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
7. 7.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
8. 8.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we measure it (b) we change it (c) we keep it the same
9. 9.True or false: glucose powder dissolves in water. (a) False (b) True
10. 10.🔍 Which is the odd one out? (a) sugar (b) glucose powder (c) table salt (d) sand
11. 11.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
12. 12.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) smell it closely (c) poke it with a finger (d) taste it
13. 13.True or false: sugar stirred well 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 the one thing we change? (a) the water temperature (b) the stirring (c) time to dissolve (d) the amount of water
15. 15.True or false: a magnet is needed for the dissolving test. (a) True (b) False
16. 16.⚖️ 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 amount of sugar (c) the amount of water (d) time to dissolve
17. 17.🥄 Which of these does not dissolve in water? (a) glucose powder (b) food colour (c) sugar (d) sand
18. 18.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar stirred well (d) sugar left unstirred
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.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) powdered sugar (d) sugar in icy water
21. 21.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it settles at the bottom (c) it floats up (d) it dissolves
22. 22.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a comb (c) a balloon (d) cold water
23. 23.🥄 Which of these dissolves in water? (a) sawdust (b) cooking oil (c) table salt (d) sand
24. 24.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a friend who is running (c) a grown-up (d) nobody needs to
25. 25.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we keep it the same (b) we change it (c) we measure it
27. 27.🔍 Which is the odd one out? (a) table salt (b) food colour (c) sugar (d) sawdust
28. 28.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) cold water (c) sugar (d) a teaspoon
29. 29.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is the one thing we change. (a) True (b) False
30. 30.🥄 Which of these dissolves in water? (a) chalk powder (b) sand (c) small pebbles (d) glucose powder
31. 31.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) sugar (c) cotton wool (d) a teaspoon
32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we measure it (b) we change it (c) we keep it the same
33. 33.🥄 Which of these dissolves slower? (a) sugar left unstirred (b) powdered sugar (c) sugar in warm water (d) sugar stirred well
34. 34.🧺 Which of these is needed for the dissolving test? (a) a comb (b) sugar (c) a balloon (d) a mirror
35. 35.🧺 Which of these is needed for the dissolving test? (a) honey (b) a mirror (c) cotton wool (d) warm water
36. 36.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
37. 37.True or false: sugar in warm water dissolves faster. (a) False (b) True
38. 38.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it became air (c) it spread in the water (d) it vanished for ever
39. 39.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is the one thing we change. (a) True (b) False
40. 40.True or false: a teaspoon is needed for the dissolving test. (a) False (b) True

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