Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 141 · 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.⚖️ 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) the amount of sugar (c) time to dissolve (d) the stirring
2. 2.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
3. 3.🥄 Which of these dissolves in water? (a) table salt (b) sand (c) small pebbles (d) sawdust
4. 4.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a comb (c) a magnet (d) warm water
5. 5.True or false: cooking oil does not dissolve in water. (a) False (b) True
6. 6.🥄 Which of these dissolves in water? (a) chalk powder (b) baking soda (c) small pebbles (d) sand
7. 7.True or false: powdered sugar dissolves slower. (a) True (b) False
8. 8.🔍 Which is the odd one out? (a) sugar (b) small pebbles (c) cooking oil (d) sawdust
9. 9.🔍 Which is the odd one out? (a) sugar (b) cooking oil (c) baking soda (d) table salt
10. 10.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) let the water evaporate (c) stir it more (d) add more water
11. 11.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a clock or timer (c) a comb (d) a teaspoon
12. 12.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
13. 13.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a mirror (c) a clock or timer (d) cold water
14. 14.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
15. 15.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
16. 16.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it sank as sand (c) it vanished for ever (d) it became air
17. 17.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) all of it dissolves (c) the water turns solid (d) the sugar turns to salt
18. 18.⚖️ 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) True (b) False
19. 19.⚖️ 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
20. 20.True or false: cotton wool is not needed for the dissolving test. (a) True (b) False
21. 21.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) sugar (c) a clock or timer (d) warm water
22. 22.⚖️ 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
23. 23.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar stirred well (d) sugar in icy water
24. 24.True or false: cold water is needed for the dissolving test. (a) True (b) False
25. 25.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is the one thing we change. (a) True (b) False
26. 26.🛟 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
27. 27.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
28. 28.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) two clear glasses (c) a magnet (d) cold water
29. 29.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
30. 30.True or false: cotton wool is needed for the dissolving test. (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 in warm water
32. 32.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a comb (c) a clock or timer (d) a teaspoon
33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) False (b) True
34. 34.True or false: glucose powder dissolves in water. (a) False (b) True
35. 35.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) sugar likes the dark (c) particles move faster (d) warm water is thicker
36. 36.🥄 Which of these dissolves in water? (a) sawdust (b) sand (c) small pebbles (d) sugar
37. 37.⚖️ 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
38. 38.🔍 Which is the odd one out? (a) sand (b) table salt (c) food colour (d) sugar
39. 39.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) honey (c) a magnet (d) sugar
40. 40.True or false: a clock or timer is not needed for the dissolving test. (a) True (b) False

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