Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 998 · 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.🧺 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 mirror (d) cold water
2. 2.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it spread in the water (c) it became air (d) it vanished for ever
3. 3.True or false: cotton wool is not needed for the dissolving test. (a) False (b) True
4. 4.True or false: sugar in warm water dissolves slower. (a) False (b) True
5. 5.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) honey (c) a teaspoon (d) two clear glasses
6. 6.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) honey (c) cold water (d) a balloon
7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we keep it the same (b) we change it (c) we measure it
8. 8.True or false: a big sugar cube dissolves faster. (a) True (b) False
9. 9.True or false: chalk powder dissolves in water. (a) False (b) True
10. 10.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
11. 11.🔮 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
12. 12.🔍 Sand is stirred into water. What do you see after a while? (a) it settles at the bottom (b) it dissolves (c) it turns blue (d) it floats up
13. 13.🛟 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
14. 14.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) stir it more (c) add more water (d) let the water evaporate
15. 15.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar stirred well (d) sugar left unstirred
16. 16.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
17. 17.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) not at all (c) the same (d) slower
18. 18.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
19. 19.⚖️ 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
20. 20.True or false: sugar in icy water dissolves slower. (a) False (b) True
21. 21.⚖️ 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) time to dissolve (c) the kind of sugar (d) the amount of water
22. 22.🥄 Which of these dissolves faster? (a) sugar in warm water (b) sugar left unstirred (c) a big sugar cube (d) sugar in icy water
23. 23.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
24. 24.🥄 Which of these dissolves in water? (a) sawdust (b) chalk powder (c) table salt (d) cooking oil
25. 25.⚖️ 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
26. 26.🧺 Which of these is not needed for the dissolving test? (a) a comb (b) a clock or timer (c) a teaspoon (d) warm water
27. 27.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) two clear glasses (c) a magnet (d) a teaspoon
28. 28.🔍 Which is the odd one out? (a) sugar (b) food colour (c) sand (d) table salt
29. 29.🥄 Which of these dissolves in water? (a) chalk powder (b) small pebbles (c) food colour (d) sawdust
30. 30.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) sugar (c) honey (d) a teaspoon
31. 31.⚖️ 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) time to dissolve (c) the water temperature
32. 32.⚖️ 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 water (c) the water temperature
33. 33.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar in icy water (d) sugar stirred well
34. 34.True or false: chalk powder does not dissolve in water. (a) True (b) False
35. 35.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) the youngest child (c) a friend who is running (d) nobody needs to
36. 36.True or false: food colour dissolves in water. (a) False (b) True
37. 37.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
38. 38.🥄 Which of these does not dissolve in water? (a) food colour (b) sugar (c) table salt (d) small pebbles
39. 39.True or false: sand dissolves in water. (a) True (b) False
40. 40.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a rainbow (c) a solution (d) a crystal

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