Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 529 · 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 in warm water (b) sugar stirred well (c) a big sugar cube (d) powdered sugar
2. 2.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
3. 3.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
4. 4.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar left unstirred (c) powdered sugar (d) sugar in warm water
5. 5.⚖️ 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 amount of sugar (c) the stirring (d) time to dissolve
6. 6.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) faster (c) slower (d) the same
7. 7.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
8. 8.⚖️ 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 measure it (c) we change it
9. 9.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) nobody needs to (c) the youngest child (d) a friend who is running
10. 10.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) add more water (c) let the water evaporate (d) stir it more
11. 11.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
12. 12.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) powdered sugar (c) a big sugar cube (d) sugar in icy water
13. 13.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it became air (c) it vanished for ever (d) it spread in the water
14. 14.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) the sugar turns to salt (c) some stays undissolved (d) all of it dissolves
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is the one thing we change. (a) True (b) False
16. 16.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) taste it (c) look for leftover grains (d) smell it closely
17. 17.True or false: a balloon is not needed for the dissolving test. (a) True (b) False
18. 18.🔍 Which is the odd one out? (a) small pebbles (b) glucose powder (c) food colour (d) baking soda
19. 19.🔍 Sand is stirred into water. What do you see after a while? (a) it settles at the bottom (b) it floats up (c) it dissolves (d) it turns blue
20. 20.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a teaspoon (c) two clear glasses (d) a comb
21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is kept the same. (a) True (b) False
22. 22.True or false: a magnet is needed for the dissolving test. (a) False (b) True
23. 23.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
24. 24.🥄 Which of these dissolves in water? (a) small pebbles (b) sand (c) sugar (d) sawdust
25. 25.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
26. 26.🥄 Which of these does not dissolve in water? (a) table salt (b) food colour (c) baking soda (d) sand
27. 27.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar in icy water (d) sugar stirred well
28. 28.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) warm water (c) a teaspoon (d) a magnet
29. 29.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) two clear glasses (c) sugar (d) a balloon
30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) time to dissolve (b) the amount of water (c) the kind of sugar (d) the water temperature
31. 31.⚖️ 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
32. 32.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) two clear glasses (c) warm water (d) a mirror
33. 33.🥄 Which of these dissolves slower? (a) sugar in icy water (b) sugar stirred well (c) powdered sugar (d) sugar in warm water
34. 34.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) sugar likes the dark (c) warm water is thicker (d) cold water is wet
35. 35.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
36. 36.🔍 Which is the odd one out? (a) glucose powder (b) chalk powder (c) sand (d) cooking oil
37. 37.True or false: sugar dissolves in water. (a) True (b) False
38. 38.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a magnet (c) sugar (d) a teaspoon
39. 39.True or false: baking soda dissolves in water. (a) False (b) True
40. 40.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) cotton wool (c) sugar (d) a clock or timer

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