Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 581 · 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.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
3. 3.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) cold water (c) two clear glasses (d) a teaspoon
4. 4.True or false: cooking oil dissolves in water. (a) True (b) False
5. 5.🥄 Which of these dissolves in water? (a) table salt (b) chalk powder (c) sawdust (d) small pebbles
6. 6.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the sugar turns to salt (b) some stays undissolved (c) all of it dissolves (d) the water turns solid
7. 7.🥄 Which of these does not dissolve in water? (a) sugar (b) table salt (c) food colour (d) sand
8. 8.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
9. 9.⚖️ 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 amount of sugar (c) the water temperature
10. 10.🔍 Which is the odd one out? (a) sand (b) sugar (c) chalk powder (d) cooking oil
11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of sugar (b) the stirring (c) time to dissolve (d) the water temperature
12. 12.🔍 Which is the odd one out? (a) baking soda (b) sand (c) chalk powder (d) cooking oil
13. 13.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a crystal (c) a solution (d) a rainbow
14. 14.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) a big sugar cube (d) sugar stirred well
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is what we measure. (a) False (b) True
16. 16.True or false: sugar stirred well dissolves slower. (a) True (b) False
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we measure it (b) we keep it the same (c) we change it
18. 18.🔍 Which is the odd one out? (a) sugar (b) sawdust (c) table salt (d) glucose powder
19. 19.🥄 Which of these does not dissolve in water? (a) food colour (b) sawdust (c) sugar (d) baking soda
20. 20.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
21. 21.🥄 Which of these dissolves in water? (a) cooking oil (b) small pebbles (c) sawdust (d) baking soda
22. 22.🧺 Which of these is needed for the dissolving test? (a) a clock or timer (b) a magnet (c) cotton wool (d) a balloon
23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the kind of sugar (b) the water temperature (c) time to dissolve
24. 24.True or false: a big sugar cube dissolves slower. (a) True (b) False
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 keep it the same (b) we measure it (c) we change it
26. 26.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) powdered sugar (d) sugar left unstirred
27. 27.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
28. 28.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) a teaspoon (c) two clear glasses (d) a balloon
29. 29.🥄 Which of these dissolves slower? (a) sugar stirred well (b) powdered sugar (c) sugar in warm water (d) sugar in icy water
30. 30.True or false: powdered sugar dissolves slower. (a) False (b) True
31. 31.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
32. 32.🔍 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
33. 33.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it dissolves (c) it settles at the bottom (d) it floats up
34. 34.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) two clear glasses (c) a clock or timer (d) cotton wool
35. 35.True or false: powdered sugar dissolves faster. (a) True (b) False
36. 36.⚖️ 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) False (b) True
37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) False (b) True
38. 38.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
39. 39.True or false: a big sugar cube dissolves faster. (a) False (b) True
40. 40.True or false: sugar is not needed for the dissolving test. (a) True (b) False

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