Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 626 · 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.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
2. 2.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) sugar (c) honey (d) a mirror
3. 3.🔍 Which is the odd one out? (a) sawdust (b) sugar (c) sand (d) chalk powder
4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we measure it (b) we keep it the same (c) we change it
5. 5.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we keep it the same (b) we measure it (c) we change it
6. 6.🥄 Which of these dissolves slower? (a) sugar stirred well (b) powdered sugar (c) sugar in warm water (d) sugar in icy water
7. 7.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) sugar (c) a clock or timer (d) honey
8. 8.True or false: two clear glasses is needed for the dissolving test. (a) False (b) True
9. 9.🔮 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
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 change it (b) we keep it the same (c) we measure it
11. 11.⚖️ 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 stirring (c) the amount of sugar (d) the kind of sugar
12. 12.🛟 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
13. 13.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) two clear glasses (c) a clock or timer (d) a mirror
14. 14.🔍 How can you get the salt back from salty water? (a) add more water (b) stir it more (c) keep it in a fridge (d) let the water evaporate
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is the one thing we change. (a) True (b) False
16. 16.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) warm water (c) a balloon (d) sugar
17. 17.⚖️ 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
18. 18.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
19. 19.⚖️ 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
20. 20.🧺 Which of these is not needed for the dissolving test? (a) a comb (b) warm water (c) a clock or timer (d) sugar
21. 21.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) particles move faster (c) warm water is thicker (d) cold water is wet
22. 22.True or false: small pebbles does not dissolve in water. (a) True (b) False
23. 23.🥄 Which of these does not dissolve in water? (a) glucose powder (b) table salt (c) chalk powder (d) sugar
24. 24.True or false: sugar in warm water dissolves slower. (a) True (b) False
25. 25.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) taste it (c) smell it closely (d) look for leftover grains
26. 26.⚖️ 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
27. 27.True or false: cooking oil dissolves in water. (a) False (b) True
28. 28.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
29. 29.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in warm water (c) sugar in icy water (d) a big sugar cube
30. 30.True or false: sugar is not needed for the dissolving test. (a) True (b) False
31. 31.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
32. 32.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it dissolves (c) it floats up (d) it settles at the bottom
33. 33.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) warm water (c) two clear glasses (d) a comb
34. 34.⚖️ 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
35. 35.True or false: a magnet is not needed for the dissolving test. (a) False (b) True
36. 36.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) time to dissolve (b) the amount of water (c) the water temperature
37. 37.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a magnet (c) cotton wool (d) two clear glasses
38. 38.True or false: a big sugar cube dissolves faster. (a) True (b) False
39. 39.True or false: cotton wool is needed for the dissolving test. (a) False (b) True
40. 40.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) the sugar turns to salt (c) some stays undissolved (d) all of it dissolves

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