Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 303 · 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.🔮 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
2. 2.🥄 Which of these dissolves slower? (a) sugar in warm water (b) a big sugar cube (c) powdered sugar (d) sugar stirred well
3. 3.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
4. 4.⚖️ 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 water (b) the amount of sugar (c) the water temperature (d) time to dissolve
5. 5.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is the one thing we change. (a) True (b) False
6. 6.⚖️ 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
7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we measure it (c) we keep it the same
8. 8.True or false: a mirror is needed for the dissolving test. (a) False (b) True
9. 9.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we keep it the same (b) we measure it (c) we change it
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.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a magnet (c) a clock or timer (d) two clear glasses
12. 12.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) warm water is thicker (c) sugar likes the dark (d) cold water is wet
13. 13.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
14. 14.🔍 Which is the odd one out? (a) baking soda (b) sugar (c) table salt (d) sand
15. 15.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) sugar in warm water (d) sugar left unstirred
16. 16.True or false: sugar dissolves in water. (a) True (b) False
17. 17.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
18. 18.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a teaspoon (c) warm water (d) honey
19. 19.True or false: baking soda dissolves in water. (a) True (b) False
20. 20.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of water (b) the amount of sugar (c) the kind of sugar (d) time to dissolve
22. 22.🧺 Which of these is needed for the dissolving test? (a) a comb (b) cotton wool (c) a magnet (d) two clear glasses
23. 23.🥄 Which of these does not dissolve in water? (a) food colour (b) baking soda (c) glucose powder (d) small pebbles
24. 24.🛟 How should you check if the sugar has dissolved? (a) taste it (b) poke it with a finger (c) smell it closely (d) look for leftover grains
25. 25.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
26. 26.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it settles at the bottom (c) it floats up (d) it turns blue
27. 27.🥄 Which of these dissolves in water? (a) sand (b) chalk powder (c) cooking oil (d) food colour
28. 28.True or false: sugar stirred well dissolves faster. (a) True (b) False
29. 29.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) time to dissolve (b) the water temperature (c) the amount of sugar
30. 30.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) the youngest child (c) a friend who is running (d) a grown-up
31. 31.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a teaspoon (c) a mirror (d) a comb
32. 32.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
33. 33.🥄 Which of these does not dissolve in water? (a) baking soda (b) food colour (c) glucose powder (d) cooking oil
34. 34.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a mirror (c) a clock or timer (d) a teaspoon
35. 35.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we measure it (b) we change it (c) we keep it the same
36. 36.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a clock or timer (c) cold water (d) a comb
37. 37.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) faster (c) not at all (d) slower
38. 38.True or false: a comb is not needed for the dissolving test. (a) True (b) False
39. 39.True or false: two clear glasses is needed for the dissolving test. (a) True (b) False
40. 40.🔍 Which is the odd one out? (a) chalk powder (b) small pebbles (c) sand (d) sugar

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