Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 353 · 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.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a mirror (c) cold water (d) a magnet
2. 2.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the stirring (b) the amount of water (c) time to dissolve (d) the kind of sugar
4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we measure it (b) we change it (c) we keep it the same
5. 5.True or false: sugar stirred well dissolves faster. (a) False (b) True
6. 6.True or false: a teaspoon is not needed for the dissolving test. (a) True (b) False
7. 7.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) not at all (d) faster
8. 8.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) sugar (c) a magnet (d) a clock or timer
9. 9.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) taste it (c) look for leftover grains (d) smell it closely
10. 10.🥄 Which of these dissolves in water? (a) food colour (b) cooking oil (c) small pebbles (d) chalk powder
11. 11.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in warm water (c) powdered sugar (d) sugar in icy water
12. 12.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) honey (c) a clock or timer (d) warm water
13. 13.True or false: powdered sugar dissolves faster. (a) False (b) True
14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we measure it (b) we change it (c) we keep it the same
15. 15.🔍 Which is the odd one out? (a) chalk powder (b) food colour (c) cooking oil (d) sawdust
16. 16.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a friend who is running (c) a grown-up (d) nobody needs to
17. 17.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it sank as sand (c) it vanished for ever (d) it spread in the water
18. 18.True or false: cooking oil dissolves in water. (a) False (b) True
19. 19.⚖️ 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) time to dissolve (c) the amount of water
20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we keep it the same (c) we measure it
21. 21.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
22. 22.🔍 Sand is stirred into water. What do you see after a while? (a) it settles at the bottom (b) it floats up (c) it turns blue (d) it dissolves
23. 23.🔍 Which is the odd one out? (a) chalk powder (b) sand (c) small pebbles (d) baking soda
24. 24.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
25. 25.⚖️ 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 change it (c) we keep it the same
26. 26.True or false: chalk powder does not dissolve in water. (a) False (b) True
27. 27.🔍 Which is the odd one out? (a) sugar (b) food colour (c) cooking oil (d) glucose powder
28. 28.True or false: two clear glasses is needed for the dissolving test. (a) False (b) True
29. 29.True or false: a balloon is needed for the dissolving test. (a) False (b) True
30. 30.🥄 Which of these does not dissolve in water? (a) food colour (b) baking soda (c) sawdust (d) glucose powder
31. 31.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) cold water (c) a mirror (d) sugar
32. 32.True or false: sugar in icy water dissolves slower. (a) False (b) True
33. 33.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
34. 34.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the stirring (b) the water temperature (c) time to dissolve
35. 35.⚖️ 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 sugar (b) the kind of sugar (c) the water temperature (d) the stirring
36. 36.True or false: sugar in warm water dissolves slower. (a) False (b) True
37. 37.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) powdered sugar (c) the sugar cube (d) neither of them
38. 38.🥄 Which of these dissolves in water? (a) sawdust (b) table salt (c) small pebbles (d) sand
39. 39.🔍 Which is the odd one out? (a) cooking oil (b) sugar (c) sand (d) chalk powder
40. 40.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) cold water (c) a clock or timer (d) a magnet

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