Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 793 · 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.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) two clear glasses (c) warm water (d) a magnet
2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is what we measure. (a) False (b) True
3. 3.🥄 Which of these dissolves faster? (a) powdered sugar (b) a big sugar cube (c) sugar left unstirred (d) sugar in icy water
4. 4.🥄 Which of these does not dissolve in water? (a) sand (b) table salt (c) sugar (d) baking soda
5. 5.⚖️ 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) False (b) True
6. 6.⚖️ 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 measure it (c) we keep it the same
7. 7.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) sugar likes the dark (c) particles move faster (d) cold water is wet
8. 8.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in warm water (c) sugar left unstirred (d) sugar in icy water
9. 9.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
10. 10.🥄 Which of these dissolves in water? (a) glucose powder (b) chalk powder (c) cooking oil (d) sawdust
11. 11.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar left unstirred (d) sugar stirred well
12. 12.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
13. 13.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) smell it closely (c) taste it (d) look for leftover grains
14. 14.True or false: food colour does not dissolve in water. (a) True (b) False
15. 15.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) cold water (c) sugar (d) a mirror
16. 16.🔍 Which is the odd one out? (a) glucose powder (b) sugar (c) small pebbles (d) food colour
17. 17.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar stirred well (d) sugar in icy water
18. 18.🥄 Which of these dissolves in water? (a) sawdust (b) small pebbles (c) sand (d) sugar
19. 19.🔍 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
20. 20.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
21. 21.⚖️ 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 change it (c) we measure it
22. 22.🔍 How can you get the salt back from salty water? (a) let the water evaporate (b) keep it in a fridge (c) stir it more (d) add more water
23. 23.⚖️ 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
24. 24.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
25. 25.True or false: sawdust dissolves in water. (a) False (b) True
26. 26.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) not at all (c) slower (d) faster
27. 27.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
28. 28.⚖️ 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) True (b) False
29. 29.⚖️ 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 change it (c) we measure it
30. 30.True or false: honey is not needed for the dissolving test. (a) False (b) True
31. 31.True or false: a mirror is needed for the dissolving test. (a) False (b) True
32. 32.🔍 Which is the odd one out? (a) sawdust (b) small pebbles (c) chalk powder (d) food colour
33. 33.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
34. 34.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it settles at the bottom (c) it dissolves (d) it turns blue
35. 35.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
36. 36.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) warm water (c) two clear glasses (d) cotton wool
37. 37.True or false: two clear glasses is needed for the dissolving test. (a) True (b) False
38. 38.⚖️ 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
39. 39.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) the sugar cube (c) powdered sugar (d) both the same
40. 40.True or false: honey is needed for the dissolving test. (a) True (b) False

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