Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 876 · 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.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) sugar left unstirred (d) sugar stirred well
2. 2.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a magnet (c) a clock or timer (d) warm water
3. 3.🥄 Which of these dissolves in water? (a) cooking oil (b) sugar (c) chalk powder (d) small pebbles
4. 4.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
5. 5.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
6. 6.⚖️ 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 water temperature (c) the amount of water (d) the kind of sugar
7. 7.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
8. 8.True or false: cold water is not needed for the dissolving test. (a) True (b) False
9. 9.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
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.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) the youngest child (c) nobody needs to (d) a grown-up
12. 12.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a mirror (c) two clear glasses (d) cotton wool
13. 13.True or false: a teaspoon is needed for the dissolving test. (a) False (b) True
14. 14.🛟 How should you check if the sugar has dissolved? (a) taste it (b) poke it with a finger (c) look for leftover grains (d) smell it closely
15. 15.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) sugar (c) two clear glasses (d) cotton wool
16. 16.🔍 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
17. 17.🥄 Which of these does not dissolve in water? (a) sugar (b) table salt (c) chalk powder (d) food colour
18. 18.True or false: a magnet is needed for the dissolving test. (a) False (b) True
19. 19.🔍 Which is the odd one out? (a) glucose powder (b) sawdust (c) cooking oil (d) small pebbles
20. 20.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
21. 21.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
22. 22.True or false: sugar in icy water dissolves faster. (a) True (b) False
23. 23.⚖️ 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 water temperature (c) the amount of sugar
24. 24.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a balloon (c) a teaspoon (d) cotton wool
25. 25.🥄 Which of these does not dissolve in water? (a) table salt (b) baking soda (c) glucose powder (d) cooking oil
26. 26.⚖️ 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) True (b) False
27. 27.True or false: honey is needed for the dissolving test. (a) False (b) True
28. 28.True or false: warm water is needed for the dissolving test. (a) False (b) True
29. 29.True or false: warm water is not needed for the dissolving test. (a) True (b) False
30. 30.True or false: a big sugar cube dissolves faster. (a) False (b) True
31. 31.⚖️ 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
32. 32.⚖️ 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
33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of water (b) the water temperature (c) the amount of sugar (d) time to dissolve
34. 34.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it settles at the bottom (c) it dissolves (d) it floats up
35. 35.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
36. 36.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
37. 37.🔍 Which is the odd one out? (a) glucose powder (b) table salt (c) food colour (d) sand
38. 38.⚖️ 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 stirring (c) the water temperature
39. 39.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) not at all (c) slower (d) faster
40. 40.⚖️ 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

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