Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 375 · 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) cooking oil (b) sawdust (c) table salt (d) chalk powder
2. 2.True or false: food colour dissolves in water. (a) True (b) False
3. 3.🥄 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
4. 4.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a teaspoon (c) honey (d) cold water
5. 5.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we change it (b) we measure it (c) we keep it the same
6. 6.True or false: cold water is needed for the dissolving test. (a) True (b) False
7. 7.True or false: sugar left unstirred dissolves faster. (a) True (b) False
8. 8.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) time to dissolve (b) the amount of sugar (c) the water temperature (d) the kind of sugar
9. 9.True or false: cotton wool is not needed for the dissolving test. (a) False (b) True
10. 10.⚖️ 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
11. 11.🔮 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) some stays undissolved (c) the water turns solid (d) all of it dissolves
12. 12.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) sugar in warm water (d) sugar left unstirred
13. 13.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
14. 14.⚖️ 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 keep it the same (c) we change it
15. 15.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) the youngest child (c) a friend who is running (d) nobody needs to
16. 16.True or false: sugar in warm water dissolves faster. (a) True (b) False
17. 17.True or false: chalk powder does not dissolve in water. (a) False (b) True
18. 18.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
19. 19.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) two clear glasses (c) a magnet (d) honey
20. 20.⚖️ 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
21. 21.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
22. 22.True or false: sand does not dissolve in water. (a) False (b) True
23. 23.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a magnet (c) sugar (d) cold water
24. 24.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
25. 25.🥄 Which of these does not dissolve in water? (a) chalk powder (b) glucose powder (c) table salt (d) baking soda
26. 26.🔍 Which is the odd one out? (a) baking soda (b) glucose powder (c) sawdust (d) sugar
27. 27.True or false: sugar stirred well dissolves faster. (a) False (b) True
28. 28.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) a big sugar cube (d) powdered sugar
29. 29.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar in icy water (c) powdered sugar (d) sugar stirred well
30. 30.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) cold water (c) cotton wool (d) warm water
31. 31.True or false: a big sugar cube dissolves slower. (a) True (b) False
32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the water temperature (b) the amount of sugar (c) the kind of sugar (d) the amount of water
33. 33.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a solution (c) a magnet (d) a rainbow
34. 34.⚖️ 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) True (b) False
35. 35.⚖️ 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
36. 36.🥄 Which of these dissolves in water? (a) cooking oil (b) small pebbles (c) glucose powder (d) chalk powder
37. 37.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
38. 38.True or false: a teaspoon is not needed for the dissolving test. (a) True (b) False
39. 39.True or false: warm water is needed for the dissolving test. (a) True (b) False
40. 40.True or false: sugar dissolves in water. (a) True (b) False

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