Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 882 · 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: baking soda dissolves in water. (a) True (b) False
2. 2.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) the sugar cube (c) neither of them (d) powdered sugar
3. 3.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
4. 4.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
5. 5.True or false: powdered sugar dissolves faster. (a) False (b) True
6. 6.🔍 How can you get the salt back from salty water? (a) let the water evaporate (b) keep it in a fridge (c) stir it more (d) add more water
7. 7.True or false: warm water is needed for the dissolving test. (a) False (b) True
8. 8.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) two clear glasses (c) a mirror (d) a comb
9. 9.🧺 Which of these is needed for the dissolving test? (a) cold water (b) cotton wool (c) a mirror (d) a comb
10. 10.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) cold water (c) a balloon (d) two clear glasses
11. 11.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a comb (c) warm water (d) honey
12. 12.⚖️ 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 kind of sugar (c) the water temperature
13. 13.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) cold water (c) a comb (d) two clear glasses
14. 14.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it dissolves (c) it settles at the bottom (d) it turns blue
15. 15.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
16. 16.🥄 Which of these does not dissolve in water? (a) sugar (b) small pebbles (c) baking soda (d) glucose powder
17. 17.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a clock or timer (c) honey (d) warm water
18. 18.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) a big sugar cube (d) powdered sugar
19. 19.🧺 Which of these is needed for the dissolving test? (a) sugar (b) a magnet (c) cotton wool (d) honey
20. 20.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) cotton wool (c) a clock or timer (d) a teaspoon
21. 21.🔍 Which is the odd one out? (a) chalk powder (b) sand (c) baking soda (d) sawdust
22. 22.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
23. 23.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
24. 24.True or false: a big sugar cube dissolves slower. (a) True (b) False
25. 25.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) not at all (c) the same (d) faster
26. 26.True or false: a comb is not needed for the dissolving test. (a) False (b) True
27. 27.True or false: sugar stirred well dissolves faster. (a) False (b) True
28. 28.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) cold water (c) sugar (d) a mirror
29. 29.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
30. 30.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
31. 31.🔍 Which is the odd one out? (a) table salt (b) sugar (c) glucose powder (d) small pebbles
32. 32.🔍 Which is the odd one out? (a) sand (b) chalk powder (c) sawdust (d) table salt
33. 33.🥄 Which of these dissolves in water? (a) chalk powder (b) sand (c) sawdust (d) glucose powder
34. 34.🛟 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
35. 35.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we measure it (b) we change it (c) we keep it the same
36. 36.🔮 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) all of it dissolves (d) the water turns solid
37. 37.True or false: glucose powder dissolves in water. (a) True (b) False
38. 38.True or false: food colour does not dissolve in water. (a) False (b) True
39. 39.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the kind of sugar (b) the amount of sugar (c) the stirring (d) time to dissolve
40. 40.⚖️ 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 change it (c) we measure it

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