Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 51 · 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.True or false: sugar stirred well dissolves slower. (a) False (b) True
2. 2.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
3. 3.🔍 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
4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we change it (b) we measure it (c) we keep it the same
5. 5.True or false: sand dissolves in water. (a) False (b) True
6. 6.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
7. 7.🥄 Which of these dissolves in water? (a) small pebbles (b) sawdust (c) sand (d) glucose powder
8. 8.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) honey (c) a clock or timer (d) warm water
9. 9.🥄 Which of these dissolves slower? (a) sugar stirred well (b) powdered sugar (c) sugar in warm water (d) sugar in icy water
10. 10.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
11. 11.🔍 Which is the odd one out? (a) sawdust (b) cooking oil (c) glucose powder (d) small pebbles
12. 12.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
13. 13.🔍 Which is the odd one out? (a) small pebbles (b) sawdust (c) chalk powder (d) baking soda
14. 14.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar left unstirred (d) powdered sugar
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) True (b) False
16. 16.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
17. 17.True or false: food colour does not dissolve in water. (a) False (b) True
18. 18.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
19. 19.⚖️ 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 kind of sugar
20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of water (b) the water temperature (c) time to dissolve
21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is kept the same. (a) True (b) False
22. 22.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) not at all (c) the same (d) faster
23. 23.True or false: a magnet is not needed for the dissolving test. (a) True (b) False
24. 24.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
25. 25.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) all of it dissolves (c) the water turns solid (d) the sugar turns to salt
26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we measure it (b) we keep it the same (c) we change it
27. 27.🧺 Which of these is needed for the dissolving test? (a) cold water (b) cotton wool (c) a magnet (d) a mirror
28. 28.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) two clear glasses (c) a clock or timer (d) cold water
29. 29.🔮 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
30. 30.⚖️ 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
31. 31.🔍 Which is the odd one out? (a) cooking oil (b) sawdust (c) table salt (d) small pebbles
32. 32.🥄 Which of these dissolves in water? (a) chalk powder (b) baking soda (c) sand (d) sawdust
33. 33.True or false: sugar in warm water dissolves slower. (a) True (b) False
34. 34.True or false: sawdust does not dissolve in water. (a) True (b) False
35. 35.⚖️ 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 measure it (c) we change it
36. 36.True or false: sugar is needed for the dissolving test. (a) False (b) True
37. 37.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) powdered sugar (d) a big sugar cube
38. 38.⚖️ 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
39. 39.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
40. 40.True or false: a teaspoon is needed for the dissolving test. (a) False (b) True

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