Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 964 · 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.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) some stays undissolved (c) the water turns solid (d) the sugar turns to salt
2. 2.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
3. 3.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) faster (c) the same (d) slower
4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we measure it (c) we keep it the same
5. 5.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) sugar (c) warm water (d) a magnet
6. 6.🔍 How can you get the salt back from salty water? (a) add more water (b) let the water evaporate (c) keep it in a fridge (d) stir it more
7. 7.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
8. 8.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) poke it with a finger (c) taste it (d) smell it closely
9. 9.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) honey (c) a clock or timer (d) sugar
10. 10.🥄 Which of these does not dissolve in water? (a) glucose powder (b) table salt (c) sugar (d) chalk powder
11. 11.True or false: sugar stirred well dissolves faster. (a) True (b) False
12. 12.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we measure it (b) we keep it the same (c) we change it
13. 13.True or false: baking soda dissolves in water. (a) True (b) False
14. 14.True or false: glucose powder dissolves in water. (a) True (b) False
15. 15.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
16. 16.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
17. 17.🔍 Which is the odd one out? (a) table salt (b) sawdust (c) small pebbles (d) cooking oil
18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we change it (b) we keep it the same (c) we measure it
19. 19.🧺 Which of these is needed for the dissolving test? (a) honey (b) cold water (c) a comb (d) a magnet
20. 20.⚖️ 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 kind of sugar (c) the amount of sugar (d) the water temperature
21. 21.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a friend who is running (c) nobody needs to (d) a grown-up
22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the stirring (b) the amount of water (c) the water temperature (d) the amount of sugar
23. 23.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
24. 24.🔍 Which is the odd one out? (a) food colour (b) table salt (c) baking soda (d) chalk powder
25. 25.True or false: cooking oil does not dissolve in water. (a) True (b) False
26. 26.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) True (b) False
28. 28.True or false: sand dissolves in water. (a) True (b) False
29. 29.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a clock or timer (c) a balloon (d) a magnet
30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is what we measure. (a) True (b) False
31. 31.🔍 Which is the odd one out? (a) cooking oil (b) sawdust (c) sand (d) sugar
32. 32.True or false: sugar is not needed for the dissolving test. (a) False (b) True
33. 33.⚖️ 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
34. 34.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
35. 35.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
36. 36.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
37. 37.⚖️ 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
38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is what we measure. (a) True (b) False
39. 39.True or false: sugar left unstirred dissolves slower. (a) False (b) True
40. 40.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed

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