Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 798 · 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.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it vanished for ever (c) it sank as sand (d) it became air
2. 2.True or false: a magnet is needed for the dissolving test. (a) True (b) False
3. 3.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
4. 4.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
5. 5.⚖️ 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 keep it the same (c) we measure it
6. 6.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a solution (c) a magnet (d) a rainbow
7. 7.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) slower (c) not at all (d) faster
8. 8.🥄 Which of these dissolves slower? (a) sugar in icy water (b) sugar stirred well (c) sugar in warm water (d) powdered sugar
9. 9.🔍 Which is the odd one out? (a) glucose powder (b) food colour (c) small pebbles (d) baking soda
10. 10.True or false: sugar stirred well dissolves faster. (a) False (b) True
11. 11.⚖️ 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) time to dissolve (c) the kind of sugar (d) the amount of sugar
12. 12.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) poke it with a finger (c) taste it (d) smell it closely
13. 13.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
14. 14.True or false: a clock or timer is not needed for the dissolving test. (a) False (b) True
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is the one thing we change. (a) False (b) True
16. 16.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) the sugar cube (c) powdered sugar (d) neither of them
17. 17.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
18. 18.⚖️ 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) the kind of sugar (c) time to dissolve
19. 19.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is the one thing we change. (a) True (b) False
20. 20.🥄 Which of these dissolves in water? (a) baking soda (b) chalk powder (c) small pebbles (d) cooking oil
21. 21.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
22. 22.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) a teaspoon (c) a comb (d) sugar
23. 23.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
24. 24.True or false: sugar is not needed for the dissolving test. (a) False (b) True
25. 25.🔍 Which is the odd one out? (a) table salt (b) food colour (c) baking soda (d) sand
26. 26.True or false: sugar left unstirred dissolves faster. (a) True (b) False
27. 27.True or false: glucose powder dissolves in water. (a) True (b) False
28. 28.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a friend who is running (c) a grown-up (d) nobody needs to
29. 29.⚖️ 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) False (b) True
30. 30.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
31. 31.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we keep it the same (c) we measure it
32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is the one thing we change. (a) False (b) True
33. 33.True or false: sugar in warm water dissolves slower. (a) True (b) False
34. 34.True or false: cotton wool is not needed for the dissolving test. (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) sawdust (b) small pebbles (c) chalk powder (d) table salt
36. 36.🥄 Which of these dissolves in water? (a) sawdust (b) small pebbles (c) sand (d) table salt
37. 37.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) sugar (c) honey (d) a clock or timer
38. 38.🥄 Which of these dissolves faster? (a) powdered sugar (b) a big sugar cube (c) sugar in icy water (d) sugar left unstirred
39. 39.🥄 Which of these does not dissolve in water? (a) table salt (b) sugar (c) sawdust (d) food colour
40. 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is what we measure. (a) False (b) True

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