Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 145 · 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.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) cold water is wet (c) particles move faster (d) sugar likes the dark
2. 2.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a clock or timer (c) a teaspoon (d) a comb
3. 3.True or false: a balloon is not needed for the dissolving test. (a) True (b) False
4. 4.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) two clear glasses (c) a mirror (d) cold water
5. 5.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we measure it (b) we keep it the same (c) we change it
6. 6.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
7. 7.True or false: a teaspoon is needed for the dissolving test. (a) True (b) False
8. 8.🛟 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
9. 9.True or false: sugar in icy water dissolves faster. (a) True (b) False
10. 10.⚖️ 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 measure it (c) we keep it the same
11. 11.⚖️ 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 water temperature (c) the amount of water
12. 12.True or false: sugar in warm water dissolves faster. (a) False (b) True
13. 13.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
14. 14.⚖️ 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 amount of water (c) the stirring (d) the amount of sugar
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we measure it (b) we keep it the same (c) we change it
16. 16.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
17. 17.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
18. 18.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) two clear glasses (c) warm water (d) sugar
20. 20.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) cold water (c) two clear glasses (d) a comb
21. 21.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) the water turns solid (c) the sugar turns to salt (d) some stays undissolved
22. 22.🔍 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
23. 23.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a teaspoon (c) a magnet (d) honey
24. 24.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a teaspoon (c) warm water (d) a magnet
25. 25.🥄 Which of these dissolves in water? (a) small pebbles (b) chalk powder (c) table salt (d) cooking oil
26. 26.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
27. 27.True or false: table salt does not dissolve in water. (a) False (b) True
28. 28.True or false: cotton wool is needed for the dissolving test. (a) False (b) True
29. 29.🛟 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
30. 30.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) warm water (c) a balloon (d) two clear glasses
31. 31.🥄 Which of these dissolves slower? (a) sugar left unstirred (b) powdered sugar (c) sugar stirred well (d) sugar in warm water
32. 32.🥄 Which of these dissolves slower? (a) sugar stirred well (b) powdered sugar (c) a big sugar cube (d) sugar in warm water
33. 33.🥄 Which of these dissolves in water? (a) small pebbles (b) cooking oil (c) sand (d) sugar
34. 34.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a teaspoon (c) warm water (d) cotton wool
35. 35.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of sugar (b) the amount of water (c) the kind of sugar (d) time to dissolve
36. 36.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) not at all (c) the same (d) faster
37. 37.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we keep it the same (b) we measure it (c) we change it
39. 39.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
40. 40.True or false: sugar stirred well dissolves slower. (a) True (b) False

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