Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 860 · 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 slower? (a) sugar in warm water (b) powdered sugar (c) sugar stirred well (d) a big sugar cube
2. 2.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
3. 3.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
4. 4.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a magnet (c) a clock or timer (d) warm 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 change it (b) we keep it the same (c) we measure it
6. 6.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
7. 7.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
8. 8.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) not at all (c) slower (d) faster
9. 9.⚖️ 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 kind of sugar (c) the water temperature (d) the amount of sugar
10. 10.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
11. 11.🥄 Which of these does not dissolve in water? (a) glucose powder (b) table salt (c) sand (d) food colour
12. 12.True or false: a balloon is needed for the dissolving test. (a) False (b) True
13. 13.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a friend who is running (c) the youngest child (d) a grown-up
14. 14.🔍 Which is the odd one out? (a) table salt (b) chalk powder (c) food colour (d) baking soda
15. 15.🔍 How can you get the salt back from salty water? (a) stir it more (b) add more water (c) keep it in a fridge (d) let the water evaporate
16. 16.🛟 How should you check if the sugar has dissolved? (a) taste it (b) smell it closely (c) look for leftover grains (d) poke it with a finger
17. 17.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
18. 18.True or false: two clear glasses is needed for the dissolving test. (a) True (b) False
19. 19.True or false: food colour does not dissolve in water. (a) True (b) False
20. 20.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) cold water (c) a comb (d) a clock or timer
21. 21.🥄 Which of these dissolves slower? (a) sugar in icy water (b) sugar in warm water (c) powdered sugar (d) sugar stirred well
22. 22.🥄 Which of these does not dissolve in water? (a) glucose powder (b) cooking oil (c) baking soda (d) sugar
23. 23.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a mirror (c) cold water (d) two clear glasses
24. 24.🔍 Which is the odd one out? (a) food colour (b) glucose powder (c) table salt (d) sand
25. 25.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) a teaspoon (c) two clear glasses (d) warm water
26. 26.True or false: honey is needed for the dissolving test. (a) False (b) True
27. 27.True or false: sugar dissolves in water. (a) True (b) False
28. 28.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) a big sugar cube (d) sugar in warm water
29. 29.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it vanished for ever (c) it sank as sand (d) it spread in the water
30. 30.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
31. 31.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
32. 32.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a balloon (b) two clear glasses (c) cold water (d) a teaspoon
33. 33.True or false: food colour dissolves in water. (a) False (b) True
34. 34.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
35. 35.🔍 Which is the odd one out? (a) sugar (b) food colour (c) baking soda (d) cooking oil
36. 36.🥄 Which of these does not dissolve in water? (a) sugar (b) table salt (c) sawdust (d) glucose powder
37. 37.🔮 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
38. 38.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) cotton wool (c) a comb (d) two clear glasses
39. 39.⚖️ 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) False (b) True
40. 40.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it floats up (c) it settles at the bottom (d) it turns blue

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