Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 391 · 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.⚖️ 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
2. 2.🥄 Which of these dissolves slower? (a) a big sugar cube (b) powdered sugar (c) sugar in warm water (d) sugar stirred well
3. 3.True or false: cotton wool is not needed for the dissolving test. (a) False (b) True
4. 4.🔮 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
5. 5.True or false: cotton wool is needed for the dissolving test. (a) False (b) True
6. 6.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a balloon (c) warm water (d) a mirror
7. 7.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a teaspoon (c) a comb (d) sugar
8. 8.True or false: sugar stirred well dissolves slower. (a) True (b) False
9. 9.True or false: a balloon is not needed for the dissolving test. (a) False (b) True
10. 10.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we keep it the same (b) we change it (c) we measure it
12. 12.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
13. 13.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
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) time to dissolve (b) the amount of sugar (c) the stirring (d) the water temperature
15. 15.True or false: honey is not needed for the dissolving test. (a) False (b) True
16. 16.True or false: table salt does not dissolve in water. (a) True (b) False
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is the one thing we change. (a) False (b) True
18. 18.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) two clear glasses (c) honey (d) cotton wool
19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) warm water (c) sugar (d) a clock or timer
20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we keep it the same (b) we change it (c) we measure it
21. 21.True or false: sugar in icy water dissolves slower. (a) False (b) True
22. 22.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
23. 23.🔍 Which is the odd one out? (a) cooking oil (b) table salt (c) sugar (d) glucose powder
24. 24.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
25. 25.🧺 Which of these is needed for the dissolving test? (a) honey (b) a magnet (c) cotton wool (d) sugar
26. 26.🛟 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
27. 27.🥄 Which of these dissolves in water? (a) chalk powder (b) sawdust (c) sugar (d) sand
28. 28.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
29. 29.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) look for leftover grains (c) smell it closely (d) taste it
30. 30.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) cold water (c) a clock or timer (d) a teaspoon
31. 31.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) stir it more (c) add more water (d) let the water evaporate
32. 32.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) warm water (c) two clear glasses (d) a balloon
33. 33.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) sugar likes the dark (c) cold water is wet (d) particles move faster
34. 34.True or false: sugar in icy water dissolves faster. (a) True (b) False
35. 35.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
36. 36.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
37. 37.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) two clear glasses (c) a balloon (d) warm water
38. 38.🧺 Which of these is not needed for the dissolving test? (a) a mirror (b) warm water (c) two clear glasses (d) sugar
39. 39.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
40. 40.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) powdered sugar (c) the sugar cube (d) neither of them

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