Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 671 · 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 slower? (a) sugar stirred well (b) sugar left unstirred (c) powdered sugar (d) sugar in warm water
2. 2.⚖️ 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 change it (c) we keep it the same
3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the water temperature (b) the kind of sugar (c) the amount of sugar (d) the stirring
4. 4.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) nobody needs to (c) a grown-up (d) a friend who is running
5. 5.🥄 Which of these dissolves in water? (a) sawdust (b) cooking oil (c) chalk powder (d) table salt
6. 6.🥄 Which of these dissolves in water? (a) baking soda (b) sawdust (c) chalk powder (d) cooking oil
7. 7.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
8. 8.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it spread in the water (c) it became air (d) it vanished for ever
9. 9.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) warm water (c) a comb (d) two clear glasses
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) False (b) True
11. 11.⚖️ 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
12. 12.🔍 Which is the odd one out? (a) sand (b) cooking oil (c) baking soda (d) small pebbles
13. 13.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) the same (c) slower (d) not at all
14. 14.⚖️ 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
15. 15.⚖️ 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 keep it the same (c) we measure it
16. 16.🛟 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
17. 17.🔍 Which is the odd one out? (a) sugar (b) cooking oil (c) small pebbles (d) chalk powder
18. 18.🥄 Which of these does not dissolve in water? (a) sugar (b) baking soda (c) glucose powder (d) chalk powder
19. 19.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
20. 20.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
21. 21.🔍 Which is the odd one out? (a) sawdust (b) sand (c) small pebbles (d) table salt
22. 22.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
23. 23.🔍 How can you get the salt back from salty water? (a) stir it more (b) add more water (c) keep it in a fridge (d) let the water evaporate
24. 24.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
25. 25.True or false: powdered sugar dissolves slower. (a) False (b) True
26. 26.True or false: honey is not needed for the dissolving test. (a) False (b) True
27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) True (b) False
28. 28.🔍 Sand is stirred into water. What do you see after a while? (a) it settles at the bottom (b) it floats up (c) it turns blue (d) it dissolves
29. 29.🥄 Which of these dissolves faster? (a) a big sugar cube (b) powdered sugar (c) sugar in icy water (d) sugar left unstirred
30. 30.⚖️ 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) False (b) True
31. 31.True or false: small pebbles dissolves in water. (a) False (b) True
32. 32.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
33. 33.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar stirred well (d) a big sugar cube
34. 34.🥄 Which of these dissolves faster? (a) sugar in warm water (b) sugar left unstirred (c) sugar in icy water (d) a big sugar cube
35. 35.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
36. 36.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a magnet (c) a mirror (d) two clear glasses
37. 37.⚖️ 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 water temperature (c) the stirring (d) time to dissolve
38. 38.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
39. 39.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the stirring (b) time to dissolve (c) the water temperature
40. 40.True or false: glucose powder dissolves in water. (a) True (b) False

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