Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 455 · 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? What do we do with “the water temperature”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a clock or timer (c) cotton wool (d) a magnet
3. 3.🔮 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 sugar turns to salt (d) the water turns solid
4. 4.🥄 Which of these does not dissolve in water? (a) glucose powder (b) sand (c) sugar (d) table salt
5. 5.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a balloon (c) cotton wool (d) sugar
6. 6.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of water (b) the kind of sugar (c) time to dissolve (d) the water temperature
8. 8.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
9. 9.⚖️ 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
10. 10.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) let the water evaporate (c) add more water (d) stir it more
11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is what we measure. (a) False (b) True
12. 12.True or false: cotton wool is not needed for the dissolving test. (a) False (b) True
13. 13.⚖️ 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
14. 14.True or false: a balloon is needed for the dissolving test. (a) True (b) False
15. 15.True or false: sugar stirred well dissolves slower. (a) False (b) True
16. 16.🥄 Which of these dissolves in water? (a) sand (b) cooking oil (c) table salt (d) small pebbles
17. 17.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) warm water (c) sugar (d) a balloon
18. 18.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
19. 19.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
20. 20.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
21. 21.🔍 Which is the odd one out? (a) table salt (b) baking soda (c) food colour (d) chalk powder
22. 22.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a mirror (b) two clear glasses (c) a teaspoon (d) cold water
23. 23.🥄 Which of these dissolves in water? (a) cooking oil (b) chalk powder (c) sand (d) sugar
24. 24.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
25. 25.🛟 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
26. 26.🥄 Which of these does not dissolve in water? (a) small pebbles (b) sugar (c) glucose powder (d) baking soda
27. 27.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) powdered sugar (c) neither of them (d) both the same
28. 28.⚖️ 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
29. 29.🥄 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
30. 30.True or false: warm water is not needed for the dissolving test. (a) True (b) False
31. 31.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) two clear glasses (c) a teaspoon (d) a clock or timer
32. 32.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) cold water (c) two clear glasses (d) a balloon
33. 33.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) sugar (c) a comb (d) warm water
34. 34.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) sugar (c) a magnet (d) a teaspoon
35. 35.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) not at all (c) the same (d) faster
36. 36.True or false: cooking oil dissolves in water. (a) False (b) True
37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we keep it the same (b) we change it (c) we measure it
38. 38.True or false: powdered sugar dissolves faster. (a) False (b) True
39. 39.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
40. 40.True or false: sugar in icy water dissolves slower. (a) True (b) False

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