Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 58 · 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 is the odd one out? (a) small pebbles (b) cooking oil (c) chalk powder (d) food colour
2. 2.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
3. 3.🔍 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 vanished for ever (d) it became air
4. 4.True or false: sugar is needed for the dissolving test. (a) True (b) False
5. 5.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
6. 6.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
7. 7.⚖️ 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
8. 8.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) nobody needs to (c) a friend who is running (d) a grown-up
9. 9.🥄 Which of these dissolves slower? (a) sugar stirred well (b) powdered sugar (c) sugar in warm water (d) sugar in icy water
10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is the one thing we change. (a) True (b) False
11. 11.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
12. 12.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) both the same (c) neither of them (d) powdered sugar
13. 13.🥄 Which of these dissolves in water? (a) sand (b) sugar (c) sawdust (d) cooking oil
14. 14.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
15. 15.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) sugar (c) a mirror (d) two clear glasses
16. 16.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a balloon (c) warm water (d) cold water
17. 17.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) look for leftover grains (c) taste it (d) poke it with a finger
18. 18.⚖️ 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
19. 19.True or false: a big sugar cube dissolves faster. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) chalk powder (b) sugar (c) glucose powder (d) food colour
21. 21.True or false: small pebbles does not dissolve in water. (a) False (b) True
22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is what we measure. (a) False (b) True
23. 23.True or false: glucose powder dissolves in water. (a) False (b) True
24. 24.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) time to dissolve (b) the amount of sugar (c) the kind of sugar (d) the water temperature
25. 25.🔍 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
26. 26.True or false: cotton wool is not needed for the dissolving test. (a) True (b) False
27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is the one thing we change. (a) True (b) False
28. 28.🥄 Which of these dissolves in water? (a) baking soda (b) sawdust (c) small pebbles (d) sand
29. 29.⚖️ 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
30. 30.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
31. 31.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
32. 32.🔍 Which is the odd one out? (a) sugar (b) baking soda (c) sand (d) food colour
33. 33.⚖️ 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
34. 34.True or false: warm water is needed for the dissolving test. (a) False (b) True
35. 35.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) sugar stirred well (d) a big sugar cube
36. 36.⚖️ 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 measure it (c) we keep it the same
37. 37.🧺 Which of these is needed for the dissolving test? (a) honey (b) a teaspoon (c) a magnet (d) cotton wool
38. 38.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
39. 39.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
40. 40.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve

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