Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 827 · 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.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a teaspoon (c) honey (d) two clear glasses
2. 2.🛟 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
3. 3.⚖️ 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
4. 4.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
5. 5.⚖️ 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 kind of sugar
6. 6.⚖️ 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
7. 7.🔍 Which is the odd one out? (a) cooking oil (b) baking soda (c) sugar (d) table salt
8. 8.True or false: sugar in warm water dissolves faster. (a) False (b) True
9. 9.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
10. 10.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it turns blue (c) it dissolves (d) it settles at the bottom
11. 11.True or false: sand dissolves in water. (a) True (b) False
12. 12.🥄 Which of these dissolves in water? (a) chalk powder (b) cooking oil (c) sawdust (d) food colour
13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) False (b) True
14. 14.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
15. 15.🔍 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 sank as sand (d) it became air
16. 16.🔍 Which is the odd one out? (a) food colour (b) sugar (c) baking soda (d) sawdust
17. 17.🔍 Which is the odd one out? (a) small pebbles (b) chalk powder (c) food colour (d) cooking oil
18. 18.True or false: sawdust does not dissolve in water. (a) False (b) True
19. 19.⚖️ 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 sugar (b) the water temperature (c) the amount of water (d) the stirring
20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of sugar (b) time to dissolve (c) the water temperature (d) the stirring
21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is what we measure. (a) True (b) False
22. 22.🧺 Which of these is needed for the dissolving test? (a) honey (b) a comb (c) cold water (d) a magnet
23. 23.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) the same (c) not at all (d) slower
24. 24.⚖️ 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 measure it (c) we change it
25. 25.🔮 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
26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is what we measure. (a) True (b) False
27. 27.True or false: a comb is not needed for the dissolving test. (a) False (b) True
28. 28.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
29. 29.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) the youngest child (c) nobody needs to (d) a friend who is running
30. 30.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) the sugar turns to salt (c) some stays undissolved (d) the water turns solid
31. 31.🥄 Which of these does not dissolve in water? (a) table salt (b) glucose powder (c) sugar (d) chalk powder
32. 32.🥄 Which of these does not dissolve in water? (a) food colour (b) glucose powder (c) table salt (d) small pebbles
33. 33.🔍 Which is the odd one out? (a) baking soda (b) table salt (c) food colour (d) small pebbles
34. 34.True or false: powdered sugar dissolves faster. (a) False (b) True
35. 35.🥄 Which of these dissolves in water? (a) sawdust (b) sand (c) sugar (d) small pebbles
36. 36.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
37. 37.🥄 Which of these dissolves slower? (a) sugar left unstirred (b) powdered sugar (c) sugar in warm water (d) sugar stirred well
38. 38.📘 What do we call water with sugar dissolved in it? (a) a solution (b) a crystal (c) a rainbow (d) a magnet
39. 39.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
40. 40.⚖️ 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) False (b) True

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