Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 874 · 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.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
2. 2.🥄 Which of these does not dissolve in water? (a) sugar (b) food colour (c) baking soda (d) cooking oil
3. 3.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it sank as sand (c) it vanished for ever (d) it became air
4. 4.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
5. 5.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we measure it (b) we keep it the same (c) we change it
6. 6.True or false: warm water is not needed for the dissolving test. (a) False (b) True
7. 7.True or false: two clear glasses is not needed for the dissolving test. (a) False (b) True
8. 8.🔍 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
9. 9.⚖️ 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
10. 10.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a friend who is running (c) nobody needs to (d) a grown-up
11. 11.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
12. 12.True or false: sugar stirred well dissolves faster. (a) False (b) True
13. 13.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a clock or timer (c) sugar (d) a magnet
14. 14.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) powdered sugar (d) sugar in icy water
15. 15.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar stirred well (c) sugar in icy water (d) a big sugar cube
16. 16.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar in warm water (c) a big sugar cube (d) sugar left unstirred
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) time to dissolve (b) the water temperature (c) the amount of sugar
18. 18.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
19. 19.⚖️ 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
20. 20.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
21. 21.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) sugar (c) two clear glasses (d) a balloon
22. 22.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a comb (c) warm water (d) cold water
23. 23.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it dissolves (c) it settles at the bottom (d) it turns blue
24. 24.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) the sugar turns to salt (c) the water turns solid (d) some stays undissolved
25. 25.True or false: sugar is not needed for the dissolving test. (a) True (b) False
26. 26.🔍 Which is the odd one out? (a) sugar (b) food colour (c) small pebbles (d) table salt
27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is what we measure. (a) False (b) True
28. 28.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
29. 29.True or false: a clock or timer is not needed for the dissolving test. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) baking soda (b) sawdust (c) food colour (d) table salt
31. 31.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is what we measure. (a) False (b) True
33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) True (b) False
34. 34.True or false: a mirror is needed for the dissolving test. (a) True (b) False
35. 35.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
36. 36.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) look for leftover grains (c) smell it closely (d) taste it
37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the kind of sugar (b) the water temperature (c) the stirring (d) time to dissolve
38. 38.⚖️ 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) time to dissolve (d) the stirring
39. 39.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
40. 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we change it (b) we keep it the same (c) we measure it

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