Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 283 · 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.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
2. 2.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
3. 3.🔍 Which is the odd one out? (a) sugar (b) glucose powder (c) small pebbles (d) baking soda
4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the water temperature (b) time to dissolve (c) the amount of water
5. 5.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in warm water (c) powdered sugar (d) a big sugar cube
6. 6.⚖️ 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 measure it (c) we keep it the same
7. 7.🛟 How should you check if the sugar has dissolved? (a) taste it (b) smell it closely (c) poke it with a finger (d) look for leftover grains
8. 8.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a teaspoon (c) cotton wool (d) warm water
9. 9.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) the youngest child (c) nobody needs to (d) a grown-up
10. 10.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
11. 11.🧺 Which of these is needed for the dissolving test? (a) honey (b) cotton wool (c) warm water (d) a magnet
12. 12.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the kind of sugar (b) time to dissolve (c) the amount of water (d) the water temperature
13. 13.🥄 Which of these dissolves in water? (a) cooking oil (b) sugar (c) sawdust (d) sand
14. 14.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) sugar likes the dark (c) particles move faster (d) warm water is thicker
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we keep it the same (b) we measure it (c) we change it
16. 16.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the water temperature (b) the kind of sugar (c) the amount of sugar (d) time to dissolve
18. 18.🥄 Which of these dissolves faster? (a) powdered sugar (b) a big sugar cube (c) sugar left unstirred (d) sugar in icy water
19. 19.🧺 Which of these is needed for the dissolving test? (a) honey (b) a comb (c) a balloon (d) cold water
20. 20.True or false: a teaspoon is not needed for the dissolving test. (a) True (b) False
21. 21.True or false: sawdust does not dissolve in water. (a) True (b) False
22. 22.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
23. 23.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) the water turns solid (c) all of it dissolves (d) the sugar turns to salt
24. 24.True or false: a big sugar cube dissolves slower. (a) False (b) True
25. 25.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it spread in the water (c) it became air (d) it sank as sand
26. 26.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we change it (b) we measure it (c) we keep it the same
28. 28.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
29. 29.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a magnet (c) a crystal (d) a solution
30. 30.🥄 Which of these dissolves in water? (a) small pebbles (b) cooking oil (c) table salt (d) chalk powder
31. 31.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
32. 32.⚖️ 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) True (b) False
33. 33.🔍 Which is the odd one out? (a) sawdust (b) small pebbles (c) table salt (d) sand
34. 34.True or false: cotton wool is not needed for the dissolving test. (a) False (b) True
35. 35.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) sugar in icy water (d) sugar in warm water
36. 36.🥄 Which of these dissolves in water? (a) chalk powder (b) cooking oil (c) sawdust (d) food colour
37. 37.True or false: table salt does not dissolve in water. (a) False (b) True
38. 38.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) cold water (c) a comb (d) warm water
39. 39.🥄 Which of these does not dissolve in water? (a) baking soda (b) glucose powder (c) food colour (d) chalk powder
40. 40.True or false: a balloon is needed for the dissolving test. (a) False (b) True

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