Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 567 · 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 glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
2. 2.⚖️ 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
3. 3.🔍 How can you get the salt back from salty water? (a) add more water (b) stir it more (c) keep it in a fridge (d) let the water evaporate
4. 4.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
5. 5.True or false: a comb is needed for the dissolving test. (a) False (b) True
6. 6.🧺 Which of these is needed for the dissolving test? (a) warm water (b) a comb (c) a balloon (d) honey
7. 7.True or false: honey is not needed for the dissolving test. (a) False (b) True
8. 8.True or false: food colour dissolves in water. (a) False (b) True
9. 9.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) faster (c) slower (d) the same
10. 10.⚖️ 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 change it (c) we keep it the same
11. 11.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) cold water is wet (c) warm water is thicker (d) particles move faster
12. 12.True or false: sugar is needed for the dissolving test. (a) False (b) True
13. 13.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a mirror (c) a clock or timer (d) two clear glasses
14. 14.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it became air (c) it vanished for ever (d) it spread in the water
15. 15.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) poke it with a finger (c) taste it (d) smell it closely
16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) True (b) False
17. 17.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) cold water (c) honey (d) a teaspoon
18. 18.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it floats up (c) it turns blue (d) it settles at the bottom
19. 19.⚖️ 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) time to dissolve (c) the stirring
20. 20.⚖️ 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
21. 21.⚖️ 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
22. 22.True or false: table salt dissolves in water. (a) True (b) False
23. 23.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) powdered sugar (d) sugar left unstirred
24. 24.True or false: two clear glasses is needed for the dissolving test. (a) False (b) True
25. 25.True or false: sand does not dissolve in water. (a) True (b) False
26. 26.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) nobody needs to (c) a grown-up (d) the youngest child
27. 27.⚖️ 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) True (b) False
28. 28.🥄 Which of these dissolves in water? (a) small pebbles (b) cooking oil (c) table salt (d) sand
29. 29.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
30. 30.True or false: sugar in icy water dissolves slower. (a) False (b) True
31. 31.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
32. 32.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
33. 33.True or false: a big sugar cube dissolves slower. (a) False (b) True
34. 34.🥄 Which of these dissolves in water? (a) small pebbles (b) glucose powder (c) sawdust (d) chalk powder
35. 35.🥄 Which of these does not dissolve in water? (a) chalk powder (b) sugar (c) food colour (d) table salt
36. 36.True or false: cooking oil dissolves in water. (a) True (b) False
37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of sugar (b) time to dissolve (c) the kind of sugar (d) the amount of water
38. 38.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
39. 39.⚖️ 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 keep it the same (c) we measure it
40. 40.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True

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