Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 719 · 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.🔍 How can you get the salt back from salty water? (a) add more water (b) stir it more (c) keep it in a fridge (d) let the water evaporate
2. 2.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
3. 3.⚖️ 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
4. 4.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) sugar likes the dark (c) cold water is wet (d) warm water is thicker
5. 5.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we keep it the same (b) we measure it (c) we change it
7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of water (b) the water temperature (c) the stirring (d) time to dissolve
8. 8.🥄 Which of these dissolves in water? (a) small pebbles (b) sand (c) sawdust (d) glucose powder
9. 9.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) a balloon (c) a clock or timer (d) sugar
10. 10.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) powdered sugar (c) the sugar cube (d) both the same
11. 11.🧺 Do we need sugar 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) taste it (c) smell it closely (d) poke it with a finger
13. 13.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) cold water (c) warm water (d) a magnet
14. 14.🥄 Which of these dissolves in water? (a) sawdust (b) sand (c) small pebbles (d) food colour
15. 15.True or false: powdered sugar dissolves faster. (a) False (b) True
16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) time to dissolve (b) the water temperature (c) the kind of sugar (d) the amount of water
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 change it (b) we keep it the same (c) we measure it
18. 18.🔍 Which is the odd one out? (a) chalk powder (b) food colour (c) baking soda (d) glucose powder
19. 19.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) a big sugar cube (d) sugar in warm water
20. 20.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) cold water (c) a comb (d) warm water
21. 21.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
22. 22.True or false: baking soda dissolves in water. (a) True (b) False
23. 23.🔍 Which is the odd one out? (a) food colour (b) sawdust (c) baking soda (d) sugar
24. 24.True or false: sugar in warm water dissolves slower. (a) True (b) False
25. 25.True or false: sugar dissolves in water. (a) False (b) True
26. 26.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
27. 27.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
28. 28.True or false: small pebbles does not dissolve in water. (a) True (b) False
29. 29.True or false: a mirror is not needed for the dissolving test. (a) False (b) True
30. 30.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
31. 31.True or false: two clear glasses is not needed for the dissolving test. (a) False (b) True
32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of water (b) time to dissolve (c) the water temperature
33. 33.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar stirred well (c) a big sugar cube (d) sugar left unstirred
34. 34.⚖️ 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
35. 35.True or false: powdered sugar dissolves slower. (a) False (b) True
36. 36.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
37. 37.🥄 Which of these dissolves slower? (a) sugar in icy water (b) sugar in warm water (c) powdered sugar (d) sugar stirred well
38. 38.True or false: cotton wool is needed for the dissolving test. (a) False (b) True
39. 39.True or false: sugar in icy water dissolves faster. (a) True (b) False
40. 40.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) some stays undissolved (c) the sugar turns to salt (d) the water turns solid

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