Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 520 · 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 is not needed for the dissolving test? (a) warm water (b) a teaspoon (c) a clock or timer (d) a mirror
2. 2.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
3. 3.⚖️ 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
4. 4.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
5. 5.True or false: food colour dissolves in water. (a) True (b) False
6. 6.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a teaspoon (c) a magnet (d) cold water
7. 7.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
8. 8.True or false: chalk powder does not dissolve in water. (a) True (b) False
9. 9.⚖️ 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) True (b) False
10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is what we measure. (a) True (b) False
11. 11.🧺 Which of these is not needed for the dissolving test? (a) a balloon (b) a teaspoon (c) cold water (d) a clock or timer
12. 12.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) two clear glasses (c) a clock or timer (d) cotton wool
13. 13.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it vanished for ever (c) it became air (d) it spread in the water
14. 14.🔍 Which is the odd one out? (a) cooking oil (b) small pebbles (c) table salt (d) sawdust
15. 15.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
16. 16.True or false: a mirror is not needed for the dissolving test. (a) False (b) True
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) time to dissolve (b) the amount of sugar (c) the water temperature (d) the amount of water
18. 18.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
19. 19.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
20. 20.⚖️ 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) False (b) True
21. 21.🥄 Which of these dissolves slower? (a) sugar in icy water (b) sugar stirred well (c) sugar in warm water (d) powdered sugar
22. 22.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) a friend who is running (c) the youngest child (d) nobody needs to
23. 23.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
24. 24.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it settles at the bottom (c) it floats up (d) it dissolves
25. 25.🥄 Which of these does not dissolve in water? (a) glucose powder (b) food colour (c) sugar (d) sand
26. 26.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) neither of them (c) powdered sugar (d) the sugar cube
27. 27.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) not at all (d) faster
28. 28.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
29. 29.True or false: honey is needed for the dissolving test. (a) True (b) False
30. 30.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
31. 31.True or false: powdered sugar dissolves slower. (a) True (b) False
32. 32.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a teaspoon (c) two clear glasses (d) a mirror
33. 33.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) taste it (c) smell it closely (d) look for leftover grains
34. 34.⚖️ 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
35. 35.🥄 Which of these does not dissolve in water? (a) food colour (b) baking soda (c) table salt (d) sawdust
36. 36.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we measure it (b) we change it (c) we keep it the same
37. 37.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar stirred well (c) sugar left unstirred (d) sugar in icy water
38. 38.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) sugar (c) a magnet (d) a balloon
39. 39.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
40. 40.True or false: honey is not needed for the dissolving test. (a) True (b) False

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