Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 242 · 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.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
2. 2.True or false: glucose powder does not dissolve in water. (a) True (b) False
3. 3.🔍 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
4. 4.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a comb (c) a clock or timer (d) cotton wool
5. 5.True or false: warm water is not needed for the dissolving test. (a) False (b) True
6. 6.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in warm water (c) sugar in icy water (d) sugar left unstirred
7. 7.True or false: cotton wool is not needed for the dissolving test. (a) False (b) True
8. 8.⚖️ 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
9. 9.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
10. 10.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
11. 11.🥄 Which of these dissolves slower? (a) sugar stirred well (b) powdered sugar (c) a big sugar cube (d) sugar in warm water
12. 12.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (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 kind of sugar (c) the amount of sugar (d) the stirring
14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the stirring (b) time to dissolve (c) the water temperature
15. 15.True or false: cotton wool is needed for the dissolving test. (a) True (b) False
16. 16.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is the one thing we change. (a) True (b) False
18. 18.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar stirred well (d) sugar left unstirred
19. 19.True or false: a teaspoon is needed for the dissolving test. (a) False (b) True
20. 20.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
21. 21.🔍 Sand is stirred into water. What do you see after a while? (a) it settles at the bottom (b) it turns blue (c) it dissolves (d) it floats up
22. 22.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a balloon (c) a teaspoon (d) sugar
23. 23.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
24. 24.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) slower (c) faster (d) the same
25. 25.True or false: a comb is needed for the dissolving test. (a) True (b) False
26. 26.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
27. 27.🔍 Which is the odd one out? (a) chalk powder (b) food colour (c) glucose powder (d) table salt
28. 28.⚖️ 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 change it (c) we measure it
29. 29.True or false: powdered sugar dissolves slower. (a) True (b) False
30. 30.⚖️ 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) True (b) False
31. 31.⚖️ 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
32. 32.🥄 Which of these dissolves faster? (a) sugar stirred well (b) sugar left unstirred (c) sugar in icy water (d) a big sugar cube
33. 33.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) cold water (c) a mirror (d) two clear glasses
34. 34.True or false: a clock or timer is needed for the dissolving test. (a) True (b) False
35. 35.🥄 Which of these does not dissolve in water? (a) food colour (b) sawdust (c) sugar (d) baking soda
36. 36.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) cold water is wet (c) particles move faster (d) sugar likes the dark
37. 37.🥄 Which of these does not dissolve in water? (a) glucose powder (b) sugar (c) table salt (d) cooking oil
38. 38.⚖️ 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
39. 39.True or false: cooking oil does not dissolve in water. (a) False (b) True
40. 40.🔍 How can you get the salt back from salty water? (a) stir it more (b) add more water (c) keep it in a fridge (d) let the water evaporate

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids