Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 93 · 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 in warm water dissolve faster or slower? (a) slower (b) faster
2. 2.True or false: glucose powder dissolves in water. (a) False (b) True
3. 3.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
4. 4.True or false: warm water is needed for the dissolving test. (a) False (b) True
5. 5.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) warm water (c) a comb (d) two clear glasses
6. 6.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
7. 7.🧺 Which of these is not needed for the dissolving test? (a) cotton wool (b) sugar (c) two clear glasses (d) a clock or timer
8. 8.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) sugar left unstirred (d) sugar in warm water
9. 9.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
10. 10.True or false: powdered sugar dissolves slower. (a) True (b) False
11. 11.🥄 Which of these does not dissolve in water? (a) glucose powder (b) baking soda (c) small pebbles (d) food colour
12. 12.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the kind of sugar (b) the amount of sugar (c) the amount of water (d) the water temperature
13. 13.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a grown-up (c) a friend who is running (d) the youngest child
14. 14.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) neither of them (c) both the same (d) powdered sugar
15. 15.🥄 Which of these dissolves in water? (a) sawdust (b) chalk powder (c) table salt (d) cooking oil
16. 16.🥄 Which of these does not dissolve in water? (a) baking soda (b) food colour (c) glucose powder (d) sawdust
17. 17.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it dissolves (c) it floats up (d) it settles at the bottom
18. 18.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) cold water (c) a clock or timer (d) honey
20. 20.True or false: sugar stirred well dissolves faster. (a) False (b) True
21. 21.True or false: sugar stirred well dissolves slower. (a) True (b) False
22. 22.⚖️ 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
23. 23.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) all of it dissolves (c) the sugar turns to salt (d) some stays undissolved
24. 24.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) a teaspoon (c) a comb (d) sugar
25. 25.⚖️ 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) False (b) True
26. 26.⚖️ 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 change it (c) we measure it
27. 27.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a mirror (b) cold water (c) two clear glasses (d) a clock or timer
28. 28.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) cotton wool (c) cold water (d) a comb
29. 29.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it sank as sand (c) it vanished for ever (d) it spread in the water
30. 30.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) a balloon (c) cotton wool (d) two clear glasses
31. 31.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) True (b) False
32. 32.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
33. 33.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) particles move faster (c) cold water is wet (d) warm water is thicker
34. 34.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a magnet (c) warm water (d) a clock or timer
35. 35.🔍 Which is the odd one out? (a) chalk powder (b) table salt (c) glucose powder (d) sugar
36. 36.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
37. 37.🧺 Which of these is not needed for the dissolving test? (a) a balloon (b) sugar (c) a clock or timer (d) warm water
38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is kept the same. (a) False (b) True
39. 39.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) add more water (c) stir it more (d) let the water evaporate
40. 40.True or false: sugar in icy water dissolves faster. (a) False (b) True

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