Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 95 · 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.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
2. 2.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
3. 3.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
4. 4.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) the sugar cube (c) powdered sugar (d) both the same
5. 5.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we keep it the same (b) we measure it (c) we change it
7. 7.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
8. 8.⚖️ 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
9. 9.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) nobody needs to (c) the youngest child (d) a friend who is running
10. 10.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) smell it closely (c) poke it with a finger (d) taste it
11. 11.True or false: sugar stirred well dissolves slower. (a) False (b) True
12. 12.True or false: sugar left unstirred dissolves slower. (a) True (b) False
13. 13.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a comb (c) cotton wool (d) two clear glasses
14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is the one thing we change. (a) True (b) False
15. 15.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) stir it more (c) add more water (d) let the water evaporate
16. 16.⚖️ 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 water (b) the water temperature (c) time to dissolve (d) the kind of sugar
17. 17.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
18. 18.True or false: chalk powder does not dissolve in water. (a) False (b) True
19. 19.⚖️ 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
20. 20.⚖️ 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 change it (c) we keep it the same
21. 21.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
22. 22.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) a teaspoon (c) sugar (d) two clear glasses
23. 23.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
24. 24.🧺 Which of these is needed for the dissolving test? (a) sugar (b) a mirror (c) a magnet (d) cotton wool
25. 25.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) cold water (c) cotton wool (d) sugar
26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) True (b) False
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 change it (c) we keep it the same
28. 28.True or false: baking soda dissolves in water. (a) False (b) True
29. 29.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
30. 30.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
31. 31.⚖️ 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
32. 32.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) cotton wool (c) two clear glasses (d) cold water
33. 33.True or false: sugar dissolves in water. (a) True (b) False
34. 34.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) sugar in warm water (d) sugar left unstirred
35. 35.🥄 Which of these does not dissolve in water? (a) sugar (b) glucose powder (c) food colour (d) sand
36. 36.True or false: sugar in warm water dissolves faster. (a) False (b) True
37. 37.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) sugar (c) a teaspoon (d) a mirror
38. 38.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
39. 39.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
40. 40.🔍 Which is the odd one out? (a) chalk powder (b) sugar (c) sand (d) sawdust

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