Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 422 · 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 is the odd one out? (a) small pebbles (b) sawdust (c) sugar (d) cooking oil
2. 2.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it became air (c) it spread in the water (d) it sank as sand
3. 3.True or false: cold water is not needed for the dissolving test. (a) False (b) True
4. 4.True or false: warm water is not needed for the dissolving test. (a) True (b) False
5. 5.⚖️ 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 keep it the same (c) we measure it
6. 6.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) slower (c) faster (d) not at all
7. 7.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) poke it with a finger (c) smell it closely (d) taste it
8. 8.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a grown-up (c) a friend who is running (d) the youngest child
9. 9.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a balloon (b) a clock or timer (c) sugar (d) warm water
10. 10.⚖️ 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
11. 11.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
12. 12.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
13. 13.⚖️ 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
14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the stirring (b) the kind of sugar (c) the water temperature (d) time to dissolve
15. 15.True or false: a magnet is not needed for the dissolving test. (a) False (b) True
16. 16.🔍 Which is the odd one out? (a) cooking oil (b) table salt (c) small pebbles (d) sawdust
17. 17.🥄 Which of these dissolves faster? (a) a big sugar cube (b) powdered sugar (c) sugar left unstirred (d) sugar in icy water
18. 18.⚖️ 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) True (b) False
19. 19.True or false: sugar is not needed for the dissolving test. (a) False (b) True
20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we measure it (b) we keep it the same (c) we change it
21. 21.True or false: honey is needed for the dissolving test. (a) True (b) False
22. 22.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) honey (c) warm water (d) a balloon
23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) True (b) False
24. 24.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
25. 25.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) both the same (c) the sugar cube (d) powdered sugar
26. 26.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) warm water (c) a mirror (d) two clear glasses
27. 27.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
28. 28.🥄 Which of these dissolves in water? (a) sawdust (b) baking soda (c) cooking oil (d) small pebbles
29. 29.True or false: a mirror is needed for the dissolving test. (a) True (b) False
30. 30.⚖️ 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
31. 31.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar left unstirred (d) sugar stirred well
32. 32.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) a balloon (c) a magnet (d) cold water
33. 33.True or false: cooking oil dissolves in water. (a) False (b) True
34. 34.🧺 Which of these is needed for the dissolving test? (a) honey (b) a magnet (c) two clear glasses (d) cotton wool
35. 35.🧺 Which of these is not needed for the dissolving test? (a) cotton wool (b) sugar (c) a teaspoon (d) cold water
36. 36.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it floats up (c) it settles at the bottom (d) it turns blue
37. 37.🥄 Which of these dissolves in water? (a) sand (b) glucose powder (c) chalk powder (d) small pebbles
38. 38.True or false: chalk powder does not dissolve in water. (a) True (b) False
39. 39.🥄 Which of these dissolves slower? (a) sugar in warm water (b) a big sugar cube (c) sugar stirred well (d) powdered sugar
40. 40.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water

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