Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 355 · 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.🔮 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) all of it dissolves (c) the water turns solid (d) some stays undissolved
2. 2.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
3. 3.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
4. 4.🥄 Which of these dissolves faster? (a) powdered sugar (b) a big sugar cube (c) sugar left unstirred (d) sugar in icy water
5. 5.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it floats up (c) it settles at the bottom (d) it dissolves
6. 6.🔍 How can you get the salt back from salty water? (a) stir it more (b) add more water (c) keep it in a fridge (d) let the water evaporate
7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the stirring (b) time to dissolve (c) the amount of sugar (d) the water temperature
8. 8.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) two clear glasses (c) warm water (d) a balloon
9. 9.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) the sugar cube (c) both the same (d) powdered sugar
10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) True (b) False
11. 11.True or false: cotton wool is not needed for the dissolving test. (a) True (b) False
12. 12.🥄 Which of these does not dissolve in water? (a) table salt (b) cooking oil (c) sugar (d) food colour
13. 13.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
14. 14.True or false: sugar in warm water dissolves slower. (a) False (b) True
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we keep it the same (b) we change it (c) we measure it
16. 16.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a mirror (c) cold water (d) a teaspoon
17. 17.🔍 Which is the odd one out? (a) glucose powder (b) table salt (c) sugar (d) sand
18. 18.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
19. 19.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of water (b) the water temperature (c) time to dissolve
20. 20.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar left unstirred (c) powdered sugar (d) sugar in warm water
21. 21.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a friend who is running (c) a grown-up (d) nobody needs to
22. 22.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) particles move faster (c) sugar likes the dark (d) warm water is thicker
23. 23.🥄 Which of these dissolves in water? (a) small pebbles (b) sand (c) table salt (d) sawdust
24. 24.True or false: sawdust does not dissolve in water. (a) False (b) True
25. 25.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar stirred well (d) a big sugar cube
26. 26.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
27. 27.⚖️ 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 kind of sugar (c) time to dissolve
28. 28.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
29. 29.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we keep it the same (b) we measure it (c) we change it
30. 30.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a teaspoon (c) cotton wool (d) a magnet
31. 31.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
32. 32.🔍 Which is the odd one out? (a) baking soda (b) food colour (c) table salt (d) small pebbles
33. 33.⚖️ 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
34. 34.True or false: a clock or timer is needed for the dissolving test. (a) False (b) True
35. 35.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is what we measure. (a) False (b) True
36. 36.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) two clear glasses (c) cotton wool (d) a clock or timer
37. 37.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a clock or timer (c) cotton wool (d) cold water
38. 38.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) honey (c) a clock or timer (d) cotton wool
39. 39.True or false: a big sugar cube dissolves faster. (a) True (b) False
40. 40.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water

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