Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 685 · 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 amount of sugar”? (a) we keep it the same (b) we measure it (c) we change it
2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we keep it the same (b) we change it (c) we measure it
3. 3.⚖️ 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) True (b) False
4. 4.⚖️ 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) time to dissolve (c) the stirring (d) the water temperature
5. 5.⚖️ 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
6. 6.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a solution (c) a rainbow (d) a crystal
7. 7.True or false: sand does not dissolve in water. (a) False (b) True
8. 8.🔍 Which is the odd one out? (a) small pebbles (b) glucose powder (c) cooking oil (d) chalk powder
9. 9.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar stirred well (c) a big sugar cube (d) sugar in icy water
10. 10.True or false: table salt does not dissolve in water. (a) True (b) False
11. 11.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a friend who is running (c) a grown-up (d) the youngest child
12. 12.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar in warm water (c) sugar left unstirred (d) a big sugar cube
13. 13.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
14. 14.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) look for leftover grains (c) poke it with a finger (d) taste it
15. 15.🔍 Which is the odd one out? (a) sugar (b) baking soda (c) small pebbles (d) table salt
16. 16.True or false: baking soda does not dissolve in water. (a) True (b) False
17. 17.🔮 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 water turns solid (c) some stays undissolved (d) the sugar turns to salt
18. 18.⚖️ 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 measure it (c) we change it
19. 19.🔍 Which is the odd one out? (a) small pebbles (b) table salt (c) sand (d) chalk powder
20. 20.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) faster (c) the same (d) not at all
21. 21.🔍 Which is the odd one out? (a) sawdust (b) food colour (c) chalk powder (d) small pebbles
22. 22.⚖️ 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 change it (c) we measure it
23. 23.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
24. 24.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
25. 25.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
26. 26.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
27. 27.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) both the same (c) powdered sugar (d) neither of them
28. 28.🥄 Which of these does not dissolve in water? (a) baking soda (b) sand (c) table salt (d) food colour
29. 29.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
30. 30.True or false: sugar is needed for the dissolving test. (a) False (b) True
31. 31.🔍 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 became air (d) it vanished for ever
32. 32.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a teaspoon (c) a magnet (d) two clear glasses
33. 33.True or false: powdered sugar dissolves slower. (a) True (b) False
34. 34.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
35. 35.⚖️ 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
36. 36.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar stirred well (d) a big sugar cube
37. 37.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) time to dissolve (b) the water temperature (c) the kind of sugar
39. 39.🥄 Which of these does not dissolve in water? (a) table salt (b) glucose powder (c) food colour (d) chalk powder
40. 40.True or false: cotton wool is needed for the dissolving test. (a) True (b) False

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