Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 995 · 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.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) sugar likes the dark (c) warm water is thicker (d) cold water is wet
2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is the one thing we change. (a) False (b) True
3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the kind of sugar (b) the amount of sugar (c) time to dissolve (d) the stirring
4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) False (b) True
5. 5.True or false: glucose powder does not dissolve in water. (a) True (b) False
6. 6.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) neither of them (c) powdered sugar (d) the sugar cube
7. 7.True or false: sugar in icy water dissolves slower. (a) False (b) True
8. 8.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
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.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) cotton wool (c) warm water (d) a teaspoon
11. 11.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
12. 12.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) two clear glasses (c) honey (d) sugar
13. 13.🔍 How can you get the salt back from salty water? (a) add more water (b) let the water evaporate (c) keep it in a fridge (d) stir it more
14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we measure it (b) we keep it the same (c) we change it
15. 15.True or false: sugar stirred well dissolves slower. (a) True (b) False
16. 16.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) two clear glasses (c) a balloon (d) sugar
17. 17.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar stirred well (d) sugar in icy water
18. 18.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) the water turns solid (c) the sugar turns to salt (d) all of it dissolves
19. 19.🥄 Which of these dissolves slower? (a) powdered sugar (b) a big sugar cube (c) sugar in warm water (d) sugar stirred well
20. 20.🥄 Which of these dissolves in water? (a) cooking oil (b) chalk powder (c) glucose powder (d) sand
21. 21.🥄 Which of these dissolves slower? (a) sugar in icy water (b) sugar stirred well (c) sugar in warm water (d) powdered sugar
22. 22.🥄 Which of these does not dissolve in water? (a) baking soda (b) cooking oil (c) sugar (d) table salt
23. 23.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
24. 24.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
25. 25.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
26. 26.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it settles at the bottom (c) it dissolves (d) it turns blue
27. 27.🔍 Which is the odd one out? (a) baking soda (b) chalk powder (c) sand (d) sawdust
28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we change it (b) we keep it the same (c) we measure it
29. 29.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is the one thing we change. (a) True (b) False
30. 30.True or false: two clear glasses is needed for the dissolving test. (a) False (b) True
31. 31.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) cotton wool (c) warm water (d) a teaspoon
32. 32.🥄 Which of these does not dissolve in water? (a) food colour (b) sugar (c) table salt (d) chalk powder
33. 33.True or false: a mirror is not needed for the dissolving test. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) sugar (b) sand (c) table salt (d) baking soda
35. 35.True or false: a teaspoon is needed for the dissolving test. (a) True (b) False
36. 36.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
37. 37.True or false: powdered sugar dissolves faster. (a) True (b) False
38. 38.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
39. 39.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
40. 40.True or false: sugar dissolves in water. (a) True (b) False

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