Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 390 · 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 in water? (a) sawdust (b) table salt (c) small pebbles (d) sand
2. 2.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a magnet (c) a rainbow (d) a solution
3. 3.True or false: cooking oil dissolves in water. (a) True (b) False
4. 4.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
5. 5.True or false: sugar in icy water dissolves slower. (a) True (b) False
6. 6.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) cotton wool (c) warm water (d) a clock or timer
7. 7.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) taste it (c) smell it closely (d) look for leftover grains
8. 8.⚖️ 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 water temperature (c) the amount of sugar (d) time to dissolve
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 change it (c) we measure it
10. 10.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
11. 11.⚖️ 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 kind of sugar (c) time to dissolve (d) the amount of sugar
12. 12.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is what we measure. (a) False (b) True
14. 14.⚖️ 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) False (b) True
15. 15.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
16. 16.True or false: chalk powder does not dissolve in water. (a) False (b) True
17. 17.🥄 Which of these does not dissolve in water? (a) table salt (b) glucose powder (c) sugar (d) small pebbles
18. 18.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) warm water is thicker (c) particles move faster (d) cold water is wet
19. 19.True or false: cold water is needed for the dissolving test. (a) False (b) True
20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we change it (b) we measure it (c) we keep it the same
21. 21.True or false: a teaspoon is not needed for the dissolving test. (a) True (b) False
22. 22.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the kind of sugar (b) time to dissolve (c) the water temperature
24. 24.🥄 Which of these does not dissolve in water? (a) glucose powder (b) baking soda (c) table salt (d) cooking oil
25. 25.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) the sugar turns to salt (c) all of it dissolves (d) some stays undissolved
26. 26.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a mirror (b) two clear glasses (c) warm water (d) sugar
27. 27.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) sugar (c) a teaspoon (d) two clear glasses
28. 28.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
29. 29.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
30. 30.🥄 Which of these dissolves in water? (a) sand (b) cooking oil (c) glucose powder (d) sawdust
31. 31.🥄 Which of these does not dissolve in water? (a) sugar (b) food colour (c) table salt (d) chalk powder
32. 32.🔍 Which is the odd one out? (a) food colour (b) cooking oil (c) table salt (d) glucose powder
33. 33.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
34. 34.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) sugar in warm water (d) a big sugar cube
35. 35.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a clock or timer (c) a balloon (d) sugar
36. 36.⚖️ 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
37. 37.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
38. 38.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) slower (c) faster (d) the same
39. 39.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a grown-up (c) the youngest child (d) a friend who is running
40. 40.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) neither of them (c) the sugar cube (d) both the same

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