Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 78 · 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 is not needed for the dissolving test? (a) a teaspoon (b) cotton wool (c) warm water (d) two clear glasses
2. 2.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a magnet (c) a solution (d) a rainbow
3. 3.⚖️ 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 stirring (d) the water temperature
4. 4.True or false: a mirror is not needed for the dissolving test. (a) True (b) False
5. 5.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) powdered sugar (c) the sugar cube (d) both the same
6. 6.True or false: cooking oil does not dissolve in water. (a) False (b) True
7. 7.⚖️ 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
8. 8.⚖️ 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) True (b) False
9. 9.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
10. 10.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) cold water is wet (c) particles move faster (d) sugar likes the dark
11. 11.⚖️ 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 stirring
12. 12.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
13. 13.⚖️ 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
14. 14.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar left unstirred (d) sugar stirred well
15. 15.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) warm water (c) sugar (d) a comb
16. 16.🛟 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
17. 17.True or false: a comb is needed for the dissolving test. (a) False (b) True
18. 18.True or false: small pebbles dissolves in water. (a) True (b) False
19. 19.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
20. 20.True or false: powdered sugar dissolves faster. (a) True (b) False
21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we keep it the same (b) we change it (c) we measure it
22. 22.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cotton wool (b) a teaspoon (c) a clock or timer (d) sugar
23. 23.🥄 Which of these dissolves in water? (a) small pebbles (b) food colour (c) cooking oil (d) sawdust
24. 24.🔮 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) all of it dissolves (d) the water turns solid
25. 25.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) not at all (c) faster (d) slower
26. 26.True or false: a magnet is needed for the dissolving test. (a) True (b) False
27. 27.🔍 Which is the odd one out? (a) sugar (b) table salt (c) baking soda (d) chalk powder
28. 28.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
29. 29.True or false: chalk powder dissolves in water. (a) True (b) False
30. 30.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
31. 31.True or false: a balloon is needed for the dissolving test. (a) False (b) True
32. 32.🔍 Which is the odd one out? (a) small pebbles (b) glucose powder (c) table salt (d) sugar
33. 33.⚖️ 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
34. 34.True or false: cotton wool is not needed for the dissolving test. (a) False (b) True
35. 35.⚖️ 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
36. 36.True or false: sugar left unstirred dissolves slower. (a) True (b) False
37. 37.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a balloon (c) two clear glasses (d) a teaspoon
38. 38.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) cold water (c) honey (d) sugar
39. 39.🔍 Which is the odd one out? (a) sand (b) sawdust (c) table salt (d) chalk powder
40. 40.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) a big sugar cube (d) sugar in warm water

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