Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 114 · 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) a big sugar cube (b) powdered sugar (c) sugar left unstirred (d) sugar in icy water
2. 2.🥄 Which of these dissolves in water? (a) small pebbles (b) baking soda (c) sand (d) sawdust
3. 3.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
4. 4.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) a comb (c) two clear glasses (d) cold water
5. 5.True or false: a big sugar cube dissolves slower. (a) True (b) False
6. 6.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we change it (b) we keep it the same (c) we measure it
8. 8.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
9. 9.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is kept the same. (a) True (b) False
11. 11.🔍 How can you get the salt back from salty water? (a) stir it more (b) add more water (c) let the water evaporate (d) keep it in a fridge
12. 12.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it spread in the water (c) it became air (d) it vanished for ever
13. 13.🔍 Which is the odd one out? (a) food colour (b) sugar (c) table salt (d) sand
14. 14.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) sugar left unstirred (d) sugar in warm water
15. 15.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) the sugar cube (c) neither of them (d) both the same
16. 16.True or false: a comb is not needed for the dissolving test. (a) False (b) True
17. 17.🔍 Which is the odd one out? (a) food colour (b) sugar (c) glucose powder (d) cooking oil
18. 18.True or false: a teaspoon is not needed for the dissolving test. (a) True (b) False
19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) warm water (c) a mirror (d) two clear glasses
20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is the one thing we change. (a) False (b) True
21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) True (b) False
22. 22.🧺 Which of these is needed for the dissolving test? (a) cold water (b) a magnet (c) a comb (d) a mirror
23. 23.True or false: sugar in icy water dissolves faster. (a) False (b) True
24. 24.True or false: cooking oil does not dissolve in water. (a) False (b) True
25. 25.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) smell it closely (c) look for leftover grains (d) taste it
26. 26.⚖️ 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) time to dissolve (c) the water temperature (d) the stirring
27. 27.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
28. 28.True or false: powdered sugar dissolves faster. (a) True (b) False
29. 29.⚖️ 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
30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we keep it the same (b) we change it (c) we measure it
31. 31.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a clock or timer (c) warm water (d) a comb
32. 32.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
33. 33.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
34. 34.🛟 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
35. 35.🥄 Which of these does not dissolve in water? (a) sugar (b) table salt (c) baking soda (d) chalk powder
36. 36.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a mirror (c) cotton wool (d) sugar
37. 37.🥄 Which of these does not dissolve in water? (a) table salt (b) sawdust (c) food colour (d) baking soda
38. 38.True or false: honey is needed for the dissolving test. (a) True (b) False
39. 39.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) a clock or timer (c) cold water (d) warm water
40. 40.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed

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