Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 902 · 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 in water? (a) sand (b) small pebbles (c) baking soda (d) sawdust
2. 2.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) sugar in warm water (d) sugar left unstirred
3. 3.True or false: baking soda dissolves in water. (a) True (b) False
4. 4.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a crystal (c) a rainbow (d) a solution
5. 5.🔍 Which is the odd one out? (a) food colour (b) sugar (c) table salt (d) small pebbles
6. 6.True or false: glucose powder does not dissolve in water. (a) True (b) False
7. 7.⚖️ 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 stirring (c) the amount of sugar (d) time to dissolve
8. 8.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) powdered sugar (d) sugar in icy water
9. 9.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we keep it the same (b) we measure it (c) we change it
10. 10.⚖️ 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) True (b) False
11. 11.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) let the water evaporate (c) add more water (d) stir it more
12. 12.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we change it (b) we measure it (c) we keep it the same
13. 13.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
14. 14.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
15. 15.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a grown-up (c) a friend who is running (d) nobody needs to
16. 16.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a teaspoon (c) a mirror (d) two clear glasses
17. 17.True or false: a magnet is not needed for the dissolving test. (a) False (b) True
18. 18.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) a big sugar cube (d) powdered sugar
19. 19.True or false: powdered sugar dissolves faster. (a) True (b) False
20. 20.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) slower (c) faster (d) the same
21. 21.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a balloon (c) sugar (d) warm water
22. 22.🥄 Which of these dissolves in water? (a) table salt (b) sand (c) small pebbles (d) chalk powder
23. 23.True or false: a clock or timer is not needed for the dissolving test. (a) True (b) False
24. 24.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a comb (c) a teaspoon (d) warm water
25. 25.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) all of it dissolves (c) the water turns solid (d) the sugar turns to salt
26. 26.🧺 Which of these is not needed for the dissolving test? (a) a mirror (b) cold water (c) two clear glasses (d) sugar
27. 27.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) False (b) True
29. 29.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a clock or timer (c) a teaspoon (d) honey
30. 30.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
31. 31.True or false: sand does not dissolve in water. (a) True (b) False
32. 32.⚖️ 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
33. 33.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it sank as sand (c) it vanished for ever (d) it became air
34. 34.True or false: a comb is not needed for the dissolving test. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) sand (b) cooking oil (c) glucose powder (d) chalk powder
36. 36.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
37. 37.🔍 Which is the odd one out? (a) food colour (b) sawdust (c) glucose powder (d) table salt
38. 38.🔍 Which is the odd one out? (a) sugar (b) small pebbles (c) sawdust (d) cooking oil
39. 39.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
40. 40.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) neither of them (c) powdered sugar (d) both the same

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