Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 549 · 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? Which of these is what we measure? (a) the amount of sugar (b) the water temperature (c) time to dissolve (d) the stirring
2. 2.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
3. 3.🛟 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
4. 4.⚖️ 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 keep it the same (c) we change it
5. 5.⚖️ 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 water (c) the water temperature (d) time to dissolve
6. 6.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
7. 7.🔍 Which is the odd one out? (a) chalk powder (b) sand (c) glucose powder (d) cooking oil
8. 8.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
9. 9.⚖️ 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 measure it (c) we change it
10. 10.🔍 How can you get the salt back from salty water? (a) stir it more (b) keep it in a fridge (c) add more water (d) let the water evaporate
11. 11.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
12. 12.⚖️ 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 amount of water
13. 13.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar in icy water (d) sugar in warm water
14. 14.True or false: honey is needed for the dissolving test. (a) False (b) True
15. 15.True or false: food colour does not dissolve in water. (a) False (b) True
16. 16.True or false: table salt does not dissolve in water. (a) False (b) True
17. 17.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) faster (c) slower (d) not at all
18. 18.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
19. 19.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
20. 20.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) two clear glasses (c) a balloon (d) a teaspoon
21. 21.🔮 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) the water turns solid (c) all of it dissolves (d) some stays undissolved
22. 22.True or false: sugar dissolves in water. (a) True (b) False
23. 23.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) a big sugar cube (d) sugar stirred well
24. 24.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) the sugar cube (c) neither of them (d) powdered sugar
25. 25.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it settles at the bottom (c) it floats up (d) it turns blue
26. 26.True or false: sand does not dissolve in water. (a) False (b) True
27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we change it (b) we keep it the same (c) we measure it
28. 28.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
29. 29.⚖️ 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
30. 30.🛟 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
31. 31.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a mirror (c) cotton wool (d) two clear glasses
32. 32.True or false: baking soda does not dissolve in water. (a) False (b) True
33. 33.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) two clear glasses (c) a mirror (d) warm water
34. 34.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) warm water (c) cold water (d) a comb
35. 35.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a balloon (c) a teaspoon (d) cold water
36. 36.True or false: warm water is needed for the dissolving test. (a) False (b) True
37. 37.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
38. 38.True or false: baking soda dissolves in water. (a) True (b) False
39. 39.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
40. 40.⚖️ 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

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