Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 819 · 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.⚖️ 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
2. 2.True or false: sugar left unstirred dissolves faster. (a) False (b) True
3. 3.🛟 How should you check if the sugar has dissolved? (a) taste it (b) poke it with a finger (c) look for leftover grains (d) smell it closely
4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we measure it (b) we keep it the same (c) we change it
5. 5.True or false: sugar in warm water dissolves faster. (a) False (b) True
6. 6.🔍 Which is the odd one out? (a) cooking oil (b) small pebbles (c) sand (d) glucose powder
7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is kept the same. (a) False (b) True
8. 8.🔍 Which is the odd one out? (a) sawdust (b) baking soda (c) chalk powder (d) cooking oil
9. 9.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we measure it (b) we keep it the same (c) we change it
10. 10.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
11. 11.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
12. 12.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
13. 13.🥄 Which of these dissolves in water? (a) sawdust (b) cooking oil (c) sand (d) food colour
14. 14.True or false: cooking oil does not dissolve in water. (a) False (b) True
15. 15.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) neither of them (c) the sugar cube (d) both the same
16. 16.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a teaspoon (c) a magnet (d) cold water
17. 17.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
18. 18.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) cold water (c) sugar (d) a magnet
19. 19.🔍 How can you get the salt back from salty water? (a) add more water (b) keep it in a fridge (c) stir it more (d) let the water evaporate
20. 20.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) a comb (c) a clock or timer (d) a magnet
21. 21.🥄 Which of these dissolves faster? (a) powdered sugar (b) sugar in icy water (c) sugar left unstirred (d) a big sugar cube
22. 22.True or false: glucose powder does not dissolve in water. (a) True (b) False
23. 23.🥄 Which of these does not dissolve in water? (a) glucose powder (b) table salt (c) small pebbles (d) food colour
24. 24.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we keep it the same (b) we change it (c) we measure it
25. 25.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) a grown-up (c) nobody needs to (d) the youngest child
26. 26.🧺 Which of these is needed for the dissolving test? (a) warm water (b) a balloon (c) a magnet (d) a mirror
27. 27.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
28. 28.🥄 Which of these dissolves in water? (a) chalk powder (b) sand (c) small pebbles (d) table salt
29. 29.⚖️ 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
30. 30.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) all of it dissolves (c) some stays undissolved (d) the sugar turns to salt
31. 31.⚖️ 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 change it (c) we measure it
32. 32.True or false: a big sugar cube dissolves slower. (a) False (b) True
33. 33.🔍 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
34. 34.🔍 Which is the odd one out? (a) cooking oil (b) small pebbles (c) sawdust (d) food colour
35. 35.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a clock or timer (c) a mirror (d) sugar
36. 36.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) True (b) False
37. 37.True or false: a magnet is needed for the dissolving test. (a) True (b) False
38. 38.🥄 Which of these dissolves in water? (a) sawdust (b) chalk powder (c) sugar (d) sand
39. 39.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) a big sugar cube (d) sugar in warm water
40. 40.True or false: sawdust does not dissolve in water. (a) True (b) False

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