Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 301 · 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) all of it dissolves (b) the sugar turns to salt (c) the water turns solid (d) some stays undissolved
2. 2.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
3. 3.🔍 Which is the odd one out? (a) food colour (b) table salt (c) cooking oil (d) baking soda
4. 4.⚖️ 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) time to dissolve (c) the water temperature (d) the amount of water
5. 5.🥄 Which of these does not dissolve in water? (a) baking soda (b) food colour (c) chalk powder (d) glucose powder
6. 6.⚖️ 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
7. 7.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
8. 8.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) a big sugar cube (d) sugar stirred well
9. 9.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is what we measure. (a) True (b) False
11. 11.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a magnet (c) a solution (d) a rainbow
12. 12.🔍 Which is the odd one out? (a) food colour (b) small pebbles (c) cooking oil (d) sawdust
13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the amount of sugar (b) the kind of sugar (c) time to dissolve (d) the water temperature
14. 14.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) two clear glasses (c) a magnet (d) warm water
15. 15.⚖️ 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
16. 16.🔍 How can you get the salt back from salty water? (a) stir it more (b) let the water evaporate (c) add more water (d) keep it in a fridge
17. 17.🔍 Which is the odd one out? (a) sand (b) table salt (c) sugar (d) glucose powder
18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is the one thing we change. (a) False (b) True
19. 19.True or false: sugar stirred well dissolves slower. (a) False (b) True
20. 20.🛟 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
21. 21.⚖️ 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) False (b) True
22. 22.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
23. 23.True or false: cooking oil dissolves in water. (a) False (b) True
24. 24.🥄 Which of these does not dissolve in water? (a) sugar (b) glucose powder (c) baking soda (d) sawdust
25. 25.🥄 Which of these dissolves in water? (a) chalk powder (b) table salt (c) sawdust (d) small pebbles
26. 26.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
27. 27.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
28. 28.🥄 Which of these dissolves slower? (a) sugar stirred well (b) powdered sugar (c) sugar in warm water (d) sugar left unstirred
29. 29.🧺 Which of these is not needed for the dissolving test? (a) a mirror (b) a teaspoon (c) cold water (d) warm water
30. 30.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) powdered sugar (c) the sugar cube (d) neither of them
31. 31.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) cold water (c) cotton wool (d) a teaspoon
32. 32.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it settles at the bottom (c) it turns blue (d) it floats up
33. 33.True or false: sugar left unstirred dissolves faster. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) chalk powder (b) sawdust (c) sand (d) baking soda
35. 35.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
36. 36.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
37. 37.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in icy water (c) sugar in warm water (d) sugar stirred well
38. 38.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) sugar (c) a clock or timer (d) two clear glasses
39. 39.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar in warm water (c) a big sugar cube (d) sugar left unstirred
40. 40.True or false: a big sugar cube dissolves faster. (a) True (b) False

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