Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 146 · 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.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a friend who is running (c) nobody needs to (d) a grown-up
2. 2.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
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 kind of sugar (d) the stirring
4. 4.True or false: sugar left unstirred dissolves faster. (a) True (b) False
5. 5.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
6. 6.🛟 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
7. 7.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
8. 8.⚖️ 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
9. 9.True or false: a clock or timer is 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 sugar”? (a) we keep it the same (b) we change it (c) we measure it
11. 11.True or false: a mirror is not needed for the dissolving test. (a) False (b) True
12. 12.🔍 Which is the odd one out? (a) baking soda (b) glucose powder (c) sugar (d) cooking oil
13. 13.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) two clear glasses (c) a mirror (d) sugar
14. 14.True or false: chalk powder does not dissolve in water. (a) False (b) True
15. 15.True or false: a big sugar cube dissolves faster. (a) False (b) True
16. 16.🥄 Which of these dissolves in water? (a) chalk powder (b) sugar (c) sand (d) cooking oil
17. 17.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
18. 18.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a crystal (c) a solution (d) a magnet
19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) two clear glasses (c) a balloon (d) warm water
20. 20.🥄 Which of these does not dissolve in water? (a) sawdust (b) glucose powder (c) table salt (d) baking soda
21. 21.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
22. 22.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar stirred well (d) sugar left unstirred
23. 23.⚖️ 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
24. 24.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a mirror (b) two clear glasses (c) cold water (d) a teaspoon
25. 25.⚖️ 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 stirring (c) the amount of water (d) the kind of sugar
26. 26.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) powdered sugar (d) a big sugar cube
27. 27.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
28. 28.True or false: sugar does not dissolve in water. (a) True (b) False
29. 29.⚖️ 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
30. 30.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
31. 31.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we measure it (b) we keep it the same (c) we change it
32. 32.True or false: a magnet is not needed for the dissolving test. (a) True (b) False
33. 33.🥄 Which of these dissolves in water? (a) sawdust (b) small pebbles (c) cooking oil (d) table salt
34. 34.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
35. 35.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) False (b) True
36. 36.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
37. 37.🔍 Which is the odd one out? (a) sugar (b) food colour (c) chalk powder (d) baking soda
38. 38.True or false: sugar in warm water dissolves slower. (a) True (b) False
39. 39.🥄 Which of these dissolves in water? (a) food colour (b) small pebbles (c) chalk powder (d) sand
40. 40.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) the water turns solid (c) the sugar turns to salt (d) all of it dissolves

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