Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 416 · 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.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we change it (b) we measure it (c) we keep it the same
2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the kind of sugar (b) time to dissolve (c) the amount of water (d) the water temperature
3. 3.🥄 Which of these dissolves faster? (a) sugar in warm water (b) sugar left unstirred (c) sugar in icy water (d) a big sugar cube
4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) True (b) False
5. 5.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of sugar (b) the kind of sugar (c) the amount of water (d) time to dissolve
6. 6.True or false: a comb is needed for the dissolving test. (a) False (b) True
7. 7.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
8. 8.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) a clock or timer (c) a teaspoon (d) a balloon
9. 9.True or false: cold water is not needed for the dissolving test. (a) False (b) True
10. 10.🔮 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
11. 11.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) the youngest child (c) nobody needs to (d) a friend who is running
12. 12.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it turns blue (c) it floats up (d) it settles at the bottom
13. 13.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) two clear glasses (c) cotton wool (d) a teaspoon
14. 14.🛟 How should you check if the sugar has dissolved? (a) taste it (b) smell it closely (c) poke it with a finger (d) look for leftover grains
15. 15.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) not at all (c) faster (d) the same
16. 16.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a mirror (c) cold water (d) warm water
17. 17.🔍 Which is the odd one out? (a) small pebbles (b) table salt (c) sand (d) sawdust
18. 18.🥄 Which of these dissolves in water? (a) sand (b) cooking oil (c) food colour (d) small pebbles
19. 19.True or false: sugar left unstirred dissolves slower. (a) True (b) False
20. 20.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
21. 21.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
22. 22.🔍 Which is the odd one out? (a) small pebbles (b) baking soda (c) glucose powder (d) sugar
23. 23.🧺 Which of these is needed for the dissolving test? (a) honey (b) a magnet (c) warm water (d) cotton wool
24. 24.🔍 Which is the odd one out? (a) food colour (b) cooking oil (c) baking soda (d) table salt
25. 25.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) warm water is thicker (c) sugar likes the dark (d) particles move faster
26. 26.🔍 Which is the odd one out? (a) food colour (b) sugar (c) chalk powder (d) baking soda
27. 27.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
28. 28.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) two clear glasses (c) cotton wool (d) sugar
29. 29.True or false: small pebbles dissolves in water. (a) False (b) True
30. 30.True or false: warm water is not needed for the dissolving test. (a) True (b) False
31. 31.⚖️ 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
32. 32.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a solution (c) a rainbow (d) a magnet
33. 33.True or false: sugar stirred well dissolves faster. (a) False (b) True
34. 34.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) warm water (c) honey (d) cold water
35. 35.True or false: powdered sugar dissolves faster. (a) False (b) True
36. 36.True or false: sugar in icy water dissolves faster. (a) True (b) False
37. 37.True or false: sawdust does not dissolve in water. (a) False (b) True
38. 38.True or false: two clear glasses is needed for the dissolving test. (a) False (b) True
39. 39.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) sugar (c) a balloon (d) a clock or timer
40. 40.True or false: two clear glasses is not needed for the dissolving test. (a) False (b) True

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