Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 931 · 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 dissolves faster? (a) sugar stirred well (b) sugar in icy water (c) sugar left unstirred (d) a big sugar cube
2. 2.🧺 Which of these is not needed for the dissolving test? (a) cotton wool (b) warm water (c) a teaspoon (d) a clock or timer
3. 3.⚖️ 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) True (b) False
4. 4.True or false: a clock or timer is needed for the dissolving test. (a) True (b) False
5. 5.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it became air (c) it spread in the water (d) it sank as sand
6. 6.🔍 Which is the odd one out? (a) cooking oil (b) sugar (c) small pebbles (d) sawdust
7. 7.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) a balloon (c) a magnet (d) cold water
8. 8.True or false: sugar in icy water dissolves slower. (a) False (b) True
9. 9.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the amount of sugar (b) the amount of water (c) the water temperature (d) time to dissolve
11. 11.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
12. 12.⚖️ 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) True (b) False
13. 13.🔍 Which is the odd one out? (a) baking soda (b) small pebbles (c) chalk powder (d) sand
14. 14.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) the sugar turns to salt (c) some stays undissolved (d) the water turns solid
15. 15.True or false: a balloon is not needed for the dissolving test. (a) False (b) True
16. 16.True or false: cooking oil dissolves in water. (a) False (b) True
17. 17.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
18. 18.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) two clear glasses (c) warm water (d) a comb
19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a clock or timer (c) a mirror (d) sugar
20. 20.True or false: cotton wool is not needed for the dissolving test. (a) False (b) True
21. 21.🥄 Which of these does not dissolve in water? (a) small pebbles (b) baking soda (c) glucose powder (d) table salt
22. 22.🥄 Which of these dissolves in water? (a) baking soda (b) sawdust (c) small pebbles (d) sand
23. 23.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
24. 24.🥄 Which of these dissolves in water? (a) cooking oil (b) glucose powder (c) sand (d) sawdust
25. 25.🔍 Which is the odd one out? (a) glucose powder (b) table salt (c) sugar (d) cooking oil
26. 26.🛟 How should you check if the sugar has dissolved? (a) taste it (b) smell it closely (c) look for leftover grains (d) poke it with a finger
27. 27.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve 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 measure it (b) we keep it the same (c) we change it
30. 30.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
31. 31.⚖️ 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
32. 32.True or false: powdered sugar dissolves faster. (a) False (b) True
33. 33.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
34. 34.True or false: sugar in warm water dissolves faster. (a) False (b) True
35. 35.🥄 Which of these dissolves in water? (a) sand (b) food colour (c) small pebbles (d) chalk powder
36. 36.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) particles move faster (c) cold water is wet (d) warm water is thicker
37. 37.True or false: a magnet is not needed for the dissolving test. (a) False (b) True
38. 38.⚖️ 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 measure it (c) we change it
39. 39.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a solution (c) a magnet (d) a rainbow
40. 40.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a clock or timer (c) two clear glasses (d) a magnet

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