Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 513 · 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: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) powdered sugar (c) both the same (d) the sugar cube
2. 2.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) a grown-up (c) nobody needs to (d) the youngest child
3. 3.🧺 Which of these is not needed for the dissolving test? (a) a comb (b) warm water (c) cold water (d) sugar
4. 4.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a clock or timer (c) two clear glasses (d) honey
5. 5.🔍 Which is the odd one out? (a) chalk powder (b) sand (c) table salt (d) sawdust
6. 6.True or false: warm water is not needed for the dissolving test. (a) True (b) False
7. 7.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it became air (c) it spread in the water (d) it vanished for ever
8. 8.🥄 Which of these does not dissolve in water? (a) sand (b) table salt (c) sugar (d) glucose powder
9. 9.True or false: a magnet is not needed for the dissolving test. (a) False (b) True
10. 10.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) look for leftover grains (c) poke it with a finger (d) taste it
11. 11.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
12. 12.True or false: a big sugar cube dissolves faster. (a) False (b) True
13. 13.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
14. 14.🔮 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) the water turns solid (d) all of it dissolves
15. 15.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
16. 16.⚖️ 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
17. 17.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
18. 18.True or false: sugar is needed for the dissolving test. (a) True (b) False
19. 19.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is what we measure. (a) True (b) False
20. 20.🥄 Which of these dissolves slower? (a) a big sugar cube (b) sugar in warm water (c) sugar stirred well (d) powdered sugar
21. 21.True or false: honey is needed for the dissolving test. (a) True (b) False
22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we change it (b) we measure it (c) we keep it the same
23. 23.⚖️ 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 keep it the same (c) we measure it
24. 24.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cotton wool (b) cold water (c) warm water (d) two clear glasses
25. 25.🔍 How can you get the salt back from salty water? (a) add more water (b) stir it more (c) let the water evaporate (d) keep it in a fridge
26. 26.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
27. 27.⚖️ 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
28. 28.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
29. 29.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) powdered sugar (d) sugar in icy water
30. 30.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) a big sugar cube (d) sugar in warm water
31. 31.🔍 Sand is stirred into water. What do you see after a while? (a) it settles at the bottom (b) it floats up (c) it turns blue (d) it dissolves
32. 32.True or false: chalk powder dissolves in water. (a) True (b) False
33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is the one thing we change. (a) False (b) True
34. 34.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we measure it (b) we keep it the same (c) we change it
35. 35.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
36. 36.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
37. 37.🥄 Which of these does not dissolve in water? (a) sugar (b) chalk powder (c) glucose powder (d) food colour
38. 38.🥄 Which of these dissolves in water? (a) small pebbles (b) chalk powder (c) cooking oil (d) sugar
39. 39.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar in icy water (d) sugar stirred well
40. 40.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a mirror (b) a teaspoon (c) warm water (d) sugar

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