Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 54 · 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.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
2. 2.⚖️ 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
3. 3.True or false: a teaspoon is needed for the dissolving test. (a) True (b) False
4. 4.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
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 amount of sugar”? (a) we change it (b) we measure it (c) we keep it the same
7. 7.True or false: glucose powder does not dissolve in water. (a) True (b) False
8. 8.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
9. 9.⚖️ 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 measure it (c) we change it
10. 10.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in warm water (c) a big sugar cube (d) sugar in icy water
11. 11.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
12. 12.🥄 Which of these dissolves in water? (a) chalk powder (b) small pebbles (c) sand (d) table salt
13. 13.🥄 Which of these dissolves slower? (a) sugar in icy water (b) powdered sugar (c) sugar stirred well (d) sugar in warm water
14. 14.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) two clear glasses (c) a teaspoon (d) a magnet
15. 15.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar stirred well (d) sugar in icy water
16. 16.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
17. 17.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) powdered sugar (d) a big sugar cube
18. 18.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it spread in the water (c) it vanished for ever (d) it became air
19. 19.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a balloon (c) a magnet (d) cold water
20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of water (b) the water temperature (c) time to dissolve
21. 21.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) nobody needs to (c) a friend who is running (d) a grown-up
22. 22.⚖️ 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 stirring (c) the amount of water (d) the water temperature
23. 23.True or false: cooking oil dissolves in water. (a) True (b) False
24. 24.True or false: a magnet 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 water temperature is the one thing we change. (a) False (b) True
26. 26.⚖️ 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
27. 27.🔍 How can you get the salt back from salty water? (a) let the water evaporate (b) stir it more (c) keep it in a fridge (d) add more water
28. 28.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it dissolves (c) it turns blue (d) it settles at the bottom
29. 29.True or false: a balloon is not needed for the dissolving test. (a) True (b) False
30. 30.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
31. 31.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
32. 32.True or false: sugar is needed for the dissolving test. (a) True (b) False
33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we keep it the same (b) we change it (c) we measure it
34. 34.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
35. 35.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
36. 36.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
37. 37.🔍 Which is the odd one out? (a) sand (b) food colour (c) table salt (d) baking soda
38. 38.⚖️ 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) True (b) False
39. 39.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
40. 40.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar left unstirred (d) sugar stirred well

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