Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 465 · 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.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) both the same (c) neither of them (d) the sugar cube
2. 2.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) poke it with a finger (c) taste it (d) smell it closely
3. 3.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) two clear glasses (c) warm water (d) a comb
4. 4.🥄 Which of these dissolves slower? (a) sugar in warm water (b) a big sugar cube (c) sugar stirred well (d) powdered sugar
5. 5.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
6. 6.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) sugar (c) a clock or timer (d) a teaspoon
7. 7.🛟 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
8. 8.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) cold water is wet (c) sugar likes the dark (d) particles move faster
9. 9.True or false: table salt dissolves in water. (a) True (b) False
10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the amount of water (b) the stirring (c) the water temperature (d) the kind of sugar
11. 11.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
12. 12.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it spread in the water (c) it sank as sand (d) it became air
13. 13.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
14. 14.⚖️ 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
15. 15.🔍 Which is the odd one out? (a) sugar (b) table salt (c) glucose powder (d) chalk powder
16. 16.True or false: a mirror is not needed for the dissolving test. (a) False (b) True
17. 17.⚖️ 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
18. 18.True or false: a balloon is needed for the dissolving test. (a) False (b) True
19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) cotton wool (c) a clock or timer (d) warm water
20. 20.🧺 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 comb
21. 21.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
22. 22.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) cold water (c) honey (d) warm water
23. 23.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
24. 24.🥄 Which of these dissolves in water? (a) glucose powder (b) sawdust (c) sand (d) chalk powder
25. 25.🔮 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
26. 26.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
27. 27.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar stirred well (c) sugar in icy water (d) sugar left unstirred
28. 28.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
29. 29.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) False (b) True
30. 30.🥄 Which of these dissolves faster? (a) sugar in warm water (b) sugar left unstirred (c) a big sugar cube (d) sugar in icy water
31. 31.True or false: glucose powder dissolves in water. (a) False (b) True
32. 32.🥄 Which of these does not dissolve in water? (a) sawdust (b) sugar (c) baking soda (d) glucose powder
33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) False (b) True
34. 34.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
35. 35.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
36. 36.⚖️ 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
37. 37.🥄 Which of these dissolves in water? (a) food colour (b) sawdust (c) small pebbles (d) chalk powder
38. 38.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
39. 39.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the water temperature (b) the amount of water (c) time to dissolve
40. 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the water temperature (b) the amount of water (c) the stirring (d) time to dissolve

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