Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 764 · 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.True or false: sand does not dissolve in water. (a) False (b) True
2. 2.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it dissolves (c) it settles at the bottom (d) it turns blue
3. 3.True or false: baking soda does not dissolve in water. (a) True (b) False
4. 4.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) a big sugar cube (d) sugar in warm water
5. 5.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
6. 6.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
7. 7.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) faster (d) not at all
8. 8.⚖️ 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
9. 9.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
10. 10.🧺 Which of these is needed for the dissolving test? (a) honey (b) a balloon (c) a clock or timer (d) a mirror
11. 11.🔍 Which is the odd one out? (a) sand (b) small pebbles (c) food colour (d) cooking oil
12. 12.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is what we measure. (a) True (b) False
13. 13.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
14. 14.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) nobody needs to (c) the youngest child (d) a grown-up
15. 15.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a clock or timer (c) two clear glasses (d) a balloon
16. 16.🔮 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) all of it dissolves (c) some stays undissolved (d) the water turns solid
17. 17.🔍 Which is the odd one out? (a) glucose powder (b) baking soda (c) food colour (d) sawdust
18. 18.True or false: a big sugar cube dissolves faster. (a) False (b) True
19. 19.True or false: cooking oil dissolves in water. (a) False (b) True
20. 20.⚖️ 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
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 measure it (c) we change it
22. 22.True or false: sugar in icy water dissolves slower. (a) True (b) False
23. 23.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a mirror (c) a balloon (d) warm water
24. 24.⚖️ 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 stirring (d) the amount of water
25. 25.True or false: table salt does not dissolve in water. (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 water is the one thing we change. (a) True (b) False
27. 27.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) a clock or timer (c) sugar (d) a teaspoon
28. 28.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) sugar (c) a magnet (d) cotton wool
29. 29.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
30. 30.🔍 Which is the odd one out? (a) table salt (b) sawdust (c) sand (d) cooking oil
31. 31.🥄 Which of these does not dissolve in water? (a) sugar (b) glucose powder (c) table salt (d) cooking oil
32. 32.🛟 How should you check if the sugar has dissolved? (a) taste it (b) look for leftover grains (c) smell it closely (d) poke it with a finger
33. 33.🥄 Which of these dissolves in water? (a) chalk powder (b) baking soda (c) cooking oil (d) small pebbles
34. 34.True or false: two clear glasses is needed for the dissolving test. (a) True (b) False
35. 35.True or false: sand dissolves in water. (a) True (b) False
36. 36.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
37. 37.True or false: a mirror is needed for the dissolving test. (a) False (b) True
38. 38.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
39. 39.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) warm water is thicker (c) sugar likes the dark (d) particles move faster
40. 40.⚖️ 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 kind of sugar

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