Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 412 · 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.🔍 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
2. 2.🥄 Which of these dissolves in water? (a) sawdust (b) sand (c) glucose powder (d) cooking oil
3. 3.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar in icy water (d) sugar stirred well
4. 4.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
5. 5.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
6. 6.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) True (b) False
8. 8.⚖️ 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 stirring (c) the amount of water (d) the water temperature
9. 9.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
10. 10.⚖️ 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) False (b) True
11. 11.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) cold water (c) a balloon (d) sugar
12. 12.⚖️ 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
13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we measure it (b) we change it (c) we keep it the same
14. 14.True or false: a big sugar cube dissolves slower. (a) False (b) True
15. 15.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) powdered sugar (d) sugar left unstirred
16. 16.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a clock or timer (c) a mirror (d) warm water
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is the one thing we change. (a) False (b) True
18. 18.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
19. 19.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a clock or timer (c) a balloon (d) a mirror
20. 20.True or false: a big sugar cube dissolves faster. (a) True (b) False
21. 21.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a magnet (c) sugar (d) two clear glasses
22. 22.🔍 Which is the odd one out? (a) sawdust (b) food colour (c) table salt (d) sugar
23. 23.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a comb (b) sugar (c) two clear glasses (d) a teaspoon
24. 24.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
25. 25.⚖️ 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
26. 26.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) two clear glasses (c) a comb (d) honey
27. 27.🔍 How can you get the salt back from salty water? (a) stir it more (b) let the water evaporate (c) add more water (d) keep it in a fridge
28. 28.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) powdered sugar (d) sugar in icy water
29. 29.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
30. 30.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the sugar turns to salt (b) the water turns solid (c) some stays undissolved (d) all of it dissolves
31. 31.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the water temperature (b) the stirring (c) time to dissolve
32. 32.True or false: food colour does not dissolve in water. (a) True (b) False
33. 33.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) taste it (c) smell it closely (d) poke it with a finger
34. 34.🔍 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
35. 35.⚖️ 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
36. 36.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) faster (c) slower (d) not at all
37. 37.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
38. 38.True or false: a magnet is needed for the dissolving test. (a) True (b) False
39. 39.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) a balloon (c) a teaspoon (d) cotton wool
40. 40.True or false: sand does not dissolve in water. (a) True (b) False

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