Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 418 · 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 dissolves in water? (a) cooking oil (b) glucose powder (c) sawdust (d) sand
2. 2.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) both the same (c) the sugar cube (d) powdered sugar
3. 3.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a mirror (c) a comb (d) a teaspoon
4. 4.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) a big sugar cube (d) powdered sugar
5. 5.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) stir it more (c) add more water (d) let the water evaporate
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.True or false: powdered sugar dissolves slower. (a) False (b) True
8. 8.🛟 How should you check if the sugar has dissolved? (a) taste it (b) look for leftover grains (c) smell it closely (d) poke it with a finger
9. 9.🔍 Which is the odd one out? (a) glucose powder (b) sugar (c) food colour (d) sand
10. 10.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
11. 11.🔮 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) all of it dissolves (c) the water turns solid (d) some stays undissolved
12. 12.🥄 Which of these dissolves in water? (a) small pebbles (b) baking soda (c) sawdust (d) cooking oil
13. 13.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
14. 14.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) False (b) True
16. 16.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a comb (b) warm water (c) a teaspoon (d) cold water
17. 17.🥄 Which of these dissolves slower? (a) sugar stirred well (b) powdered sugar (c) sugar left unstirred (d) sugar in warm water
18. 18.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a balloon (c) a clock or timer (d) warm water
19. 19.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) time to dissolve (b) the kind of sugar (c) the amount of sugar (d) the amount of water
20. 20.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
21. 21.🥄 Which of these does not dissolve in water? (a) glucose powder (b) sugar (c) food colour (d) cooking oil
22. 22.🥄 Which of these does not dissolve in water? (a) glucose powder (b) sand (c) baking soda (d) sugar
23. 23.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it sank as sand (c) it spread in the water (d) it vanished for ever
24. 24.⚖️ 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
25. 25.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) cold water (c) a magnet (d) two clear glasses
26. 26.🧺 Which of these is not needed for the dissolving test? (a) cotton wool (b) a teaspoon (c) sugar (d) warm water
27. 27.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
28. 28.🔍 Which is the odd one out? (a) glucose powder (b) sand (c) chalk powder (d) small pebbles
29. 29.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it turns blue (c) it dissolves (d) it settles at the bottom
30. 30.⚖️ 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 keep it the same (c) we change it
31. 31.True or false: chalk powder dissolves in water. (a) False (b) True
32. 32.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) sugar stirred well (d) a big sugar cube
33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we change it (b) we measure it (c) we keep it the same
34. 34.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar in icy water (d) sugar in warm water
35. 35.True or false: cold water is not needed for the dissolving test. (a) True (b) False
36. 36.True or false: sugar left unstirred dissolves slower. (a) False (b) True
37. 37.🛟 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
38. 38.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) two clear glasses (c) cold water (d) a mirror
39. 39.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a clock or timer (c) a mirror (d) sugar
40. 40.🥄 Which of these dissolves slower? (a) sugar stirred well (b) powdered sugar (c) sugar in warm water (d) sugar in icy water

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