Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 49 · 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.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) taste it (c) smell it closely (d) poke it with a finger
2. 2.🔍 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 became air (d) it sank as sand
3. 3.🥄 Which of these dissolves in water? (a) small pebbles (b) cooking oil (c) sugar (d) sand
4. 4.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) powdered sugar (d) sugar left unstirred
5. 5.⚖️ 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
6. 6.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
7. 7.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
8. 8.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a balloon (c) a mirror (d) sugar
9. 9.🔍 Which is the odd one out? (a) food colour (b) cooking oil (c) sugar (d) table salt
10. 10.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) the water turns solid (c) the sugar turns to salt (d) all of it dissolves
11. 11.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
12. 12.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
13. 13.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a balloon (c) sugar (d) a teaspoon
14. 14.🧺 Which of these is needed for the dissolving test? (a) two clear glasses (b) a comb (c) a mirror (d) cotton wool
15. 15.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) a clock or timer (c) cotton wool (d) cold water
16. 16.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
17. 17.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) not at all (d) faster
18. 18.🧺 Which of these is needed for the dissolving test? (a) warm water (b) a balloon (c) a comb (d) a mirror
19. 19.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) False (b) True
20. 20.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) neither of them (c) the sugar cube (d) powdered sugar
21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we change it (b) we keep it the same (c) we measure it
22. 22.⚖️ 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 amount of water (c) time to dissolve
23. 23.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in icy water (c) powdered sugar (d) sugar in warm water
24. 24.True or false: sugar left unstirred dissolves slower. (a) False (b) True
25. 25.True or false: small pebbles does not dissolve in water. (a) False (b) True
26. 26.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a magnet (c) a teaspoon (d) a mirror
27. 27.True or false: table salt does not dissolve in water. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) cooking oil (b) sawdust (c) glucose powder (d) small pebbles
29. 29.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) sugar (c) a mirror (d) cold water
30. 30.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a magnet (c) cold water (d) a clock or timer
31. 31.True or false: sugar is not needed for the dissolving test. (a) True (b) False
32. 32.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cotton wool (b) cold water (c) warm water (d) two clear glasses
33. 33.True or false: a mirror is not needed for the dissolving test. (a) False (b) True
34. 34.⚖️ 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
35. 35.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
36. 36.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) two clear glasses (c) a mirror (d) a teaspoon
37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we measure it (b) we keep it the same (c) we change it
38. 38.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar stirred well (d) sugar left unstirred
39. 39.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is kept the same. (a) False (b) True
40. 40.⚖️ 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 stirring

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