Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 239 · 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.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) sugar in warm water (d) sugar left unstirred
2. 2.🔍 Which is the odd one out? (a) food colour (b) table salt (c) chalk powder (d) glucose powder
3. 3.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a comb (b) sugar (c) cold water (d) warm water
4. 4.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a mirror (c) honey (d) a teaspoon
5. 5.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar left unstirred (d) sugar stirred well
6. 6.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
7. 7.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) the youngest child (c) a grown-up (d) a friend who is running
8. 8.🥄 Which of these dissolves faster? (a) powdered sugar (b) a big sugar cube (c) sugar in icy water (d) sugar left unstirred
9. 9.⚖️ 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
10. 10.⚖️ 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) time to dissolve (c) the amount of sugar (d) the water temperature
11. 11.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) slower (c) faster (d) not at all
12. 12.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it turns blue (c) it dissolves (d) it settles at the bottom
13. 13.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar left unstirred (c) powdered sugar (d) sugar stirred well
14. 14.🥄 Which of these does not dissolve in water? (a) table salt (b) small pebbles (c) glucose powder (d) food colour
15. 15.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
16. 16.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a comb (c) a clock or timer (d) a mirror
17. 17.🧺 Which of these is not needed for the dissolving test? (a) a comb (b) cold water (c) sugar (d) a clock or timer
18. 18.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
19. 19.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) warm water is thicker (c) cold water is wet (d) particles move faster
20. 20.True or false: sugar does not dissolve in water. (a) True (b) False
21. 21.True or false: a mirror is not needed for the dissolving test. (a) False (b) True
22. 22.🧺 Which of these is needed for the dissolving test? (a) honey (b) a mirror (c) a comb (d) cold water
23. 23.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) cotton wool (c) two clear glasses (d) cold water
24. 24.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
25. 25.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we measure it (b) we change it (c) we keep it the same
26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) False (b) True
27. 27.🥄 Which of these does not dissolve in water? (a) food colour (b) sugar (c) glucose powder (d) sand
28. 28.🔍 Which is the odd one out? (a) cooking oil (b) small pebbles (c) sawdust (d) sugar
29. 29.True or false: sugar dissolves in water. (a) False (b) True
30. 30.🔍 Which is the odd one out? (a) glucose powder (b) food colour (c) sawdust (d) baking soda
31. 31.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) the sugar turns to salt (c) the water turns solid (d) some stays undissolved
32. 32.True or false: sugar in warm water dissolves slower. (a) True (b) False
33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) False (b) True
34. 34.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a clock or timer (c) sugar (d) a magnet
35. 35.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
36. 36.True or false: sugar stirred well dissolves slower. (a) True (b) False
37. 37.⚖️ 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 keep it the same (c) we change it
38. 38.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
39. 39.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a clock or timer (c) cold water (d) honey
40. 40.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed

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