Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 350 · 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 faster? (a) sugar in icy water (b) a big sugar cube (c) powdered sugar (d) sugar left unstirred
2. 2.⚖️ 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 amount of water (c) the water temperature (d) the stirring
3. 3.🔍 How can you get the salt back from salty water? (a) let the water evaporate (b) keep it in a fridge (c) add more water (d) stir it more
4. 4.🥄 Which of these dissolves faster? (a) sugar in warm water (b) a big sugar cube (c) sugar left unstirred (d) sugar in icy water
5. 5.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) the same (c) faster (d) slower
6. 6.🔮 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
7. 7.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) warm water (c) two clear glasses (d) a magnet
8. 8.True or false: a mirror is needed for the dissolving test. (a) True (b) False
9. 9.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) poke it with a finger (c) taste it (d) look for leftover grains
10. 10.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a mirror (c) sugar (d) a teaspoon
11. 11.🔮 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
12. 12.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a clock or timer (c) a magnet (d) warm water
13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we keep it the same (b) we measure it (c) we change it
14. 14.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a clock or timer (c) cold water (d) a balloon
15. 15.True or false: a clock or timer is needed for the dissolving test. (a) True (b) False
16. 16.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) honey (c) a mirror (d) a teaspoon
17. 17.True or false: sugar in warm water dissolves slower. (a) False (b) True
18. 18.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
19. 19.🔍 Which is the odd one out? (a) sugar (b) table salt (c) baking soda (d) sawdust
20. 20.🔍 Which is the odd one out? (a) chalk powder (b) cooking oil (c) sand (d) table salt
21. 21.🔍 Sand is stirred into water. What do you see after a while? (a) it settles at the bottom (b) it dissolves (c) it turns blue (d) it floats up
22. 22.True or false: sugar stirred well dissolves slower. (a) False (b) True
23. 23.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
24. 24.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) nobody needs to (c) a friend who is running (d) the youngest child
25. 25.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a clock or timer (c) honey (d) warm water
26. 26.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it became air (c) it spread in the water (d) it vanished for ever
27. 27.🧺 Which of these is needed for the dissolving test? (a) cold water (b) a balloon (c) a magnet (d) cotton wool
28. 28.🥄 Which of these dissolves in water? (a) chalk powder (b) sugar (c) sand (d) cooking oil
29. 29.True or false: a comb is not needed for the dissolving test. (a) True (b) False
30. 30.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
31. 31.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
32. 32.⚖️ 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
33. 33.True or false: small pebbles dissolves in water. (a) True (b) False
34. 34.True or false: two clear glasses is not needed for the dissolving test. (a) False (b) True
35. 35.🥄 Which of these does not dissolve in water? (a) cooking oil (b) glucose powder (c) baking soda (d) sugar
36. 36.True or false: sugar left unstirred dissolves slower. (a) False (b) True
37. 37.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar stirred well (d) sugar left unstirred
38. 38.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
39. 39.🔍 Which is the odd one out? (a) sand (b) sugar (c) food colour (d) table salt
40. 40.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a mirror (c) warm water (d) a teaspoon

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