Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 597 · 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 “time to dissolve”? (a) we change it (b) we measure it (c) we keep it the same
2. 2.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
3. 3.🧺 Which of these is not needed for the dissolving test? (a) a balloon (b) a teaspoon (c) a clock or timer (d) two clear glasses
4. 4.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it spread in the water (c) it sank as sand (d) it vanished for ever
5. 5.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
6. 6.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) the youngest child (c) a friend who is running (d) nobody needs to
7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we change it (b) we measure it (c) we keep it the same
8. 8.🔍 Which is the odd one out? (a) glucose powder (b) sugar (c) table salt (d) sawdust
9. 9.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) a magnet (c) sugar (d) a teaspoon
10. 10.True or false: powdered sugar dissolves slower. (a) False (b) True
11. 11.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
12. 12.True or false: sugar left unstirred dissolves faster. (a) False (b) True
13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) time to dissolve (b) the amount of sugar (c) the stirring (d) the kind of sugar
14. 14.True or false: warm water is not needed for the dissolving test. (a) False (b) True
15. 15.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) the sugar turns to salt (c) some stays undissolved (d) all of it dissolves
16. 16.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) a big sugar cube (d) powdered sugar
17. 17.🔍 How can you get the salt back from salty water? (a) add more water (b) keep it in a fridge (c) let the water evaporate (d) stir it more
18. 18.True or false: food colour does not dissolve in water. (a) True (b) False
19. 19.True or false: a mirror is not needed for the dissolving test. (a) False (b) True
20. 20.True or false: baking soda dissolves in water. (a) False (b) True
21. 21.🥄 Which of these dissolves in water? (a) glucose powder (b) sawdust (c) chalk powder (d) small pebbles
22. 22.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) sugar left unstirred (d) sugar in warm water
23. 23.⚖️ 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
24. 24.⚖️ 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
25. 25.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the kind of sugar (b) the amount of sugar (c) the amount of water (d) the water temperature
26. 26.True or false: a magnet is not needed for the dissolving test. (a) False (b) True
27. 27.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) honey (c) a magnet (d) sugar
28. 28.True or false: sawdust dissolves in water. (a) True (b) False
29. 29.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it dissolves (c) it settles at the bottom (d) it floats up
30. 30.⚖️ 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 keep it the same (c) we measure it
31. 31.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we change it (b) we measure it (c) we keep it the same
33. 33.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
34. 34.🥄 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
35. 35.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) slower (c) faster (d) not at all
36. 36.True or false: glucose powder dissolves in water. (a) True (b) False
37. 37.⚖️ 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
38. 38.🛟 How should you check if the sugar has dissolved? (a) taste it (b) look for leftover grains (c) poke it with a finger (d) smell it closely
39. 39.🧺 Which of these is needed for the dissolving test? (a) honey (b) a balloon (c) a mirror (d) warm water
40. 40.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water

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