Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 893 · 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: cooking oil dissolves in water. (a) False (b) True
2. 2.⚖️ 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
3. 3.🛟 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
4. 4.True or false: chalk powder dissolves in water. (a) True (b) False
5. 5.🔍 Which is the odd one out? (a) baking soda (b) chalk powder (c) food colour (d) table salt
6. 6.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a teaspoon (c) honey (d) a clock or timer
7. 7.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) smell it closely (c) look for leftover grains (d) taste it
8. 8.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a teaspoon (c) a comb (d) cotton wool
9. 9.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) cold water is wet (c) sugar likes the dark (d) warm water is thicker
10. 10.🔍 Which is the odd one out? (a) chalk powder (b) small pebbles (c) sand (d) food colour
11. 11.⚖️ 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
12. 12.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
13. 13.🥄 Which of these dissolves in water? (a) small pebbles (b) chalk powder (c) food colour (d) sand
14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is kept the same. (a) True (b) False
15. 15.⚖️ 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 kind of sugar (c) time to dissolve
16. 16.True or false: sugar left unstirred dissolves faster. (a) False (b) True
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we keep it the same (b) we change it (c) we measure it
18. 18.🔮 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
19. 19.🔍 Which is the odd one out? (a) glucose powder (b) food colour (c) table salt (d) small pebbles
20. 20.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
21. 21.🔍 Which is the odd one out? (a) sand (b) glucose powder (c) cooking oil (d) chalk powder
22. 22.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
23. 23.True or false: sugar stirred well dissolves faster. (a) False (b) True
24. 24.True or false: sugar does not dissolve in water. (a) True (b) False
25. 25.🥄 Which of these does not dissolve in water? (a) food colour (b) table salt (c) glucose powder (d) cooking oil
26. 26.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
27. 27.True or false: a balloon is needed for the dissolving test. (a) True (b) False
28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) True (b) False
29. 29.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
30. 30.True or false: table salt dissolves in water. (a) True (b) False
31. 31.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
32. 32.True or false: a big sugar cube dissolves slower. (a) False (b) True
33. 33.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
34. 34.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
35. 35.⚖️ 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 amount of sugar (c) time to dissolve
36. 36.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the water temperature (b) the amount of water (c) time to dissolve (d) the stirring
37. 37.⚖️ 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
38. 38.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) sugar (c) a magnet (d) warm water
39. 39.🔍 Which is the odd one out? (a) sugar (b) baking soda (c) sawdust (d) food colour
40. 40.⚖️ 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 keep it the same (c) we change it

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