Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 143 · 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.True or false: a balloon is not needed for the dissolving test. (a) True (b) False
2. 2.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) honey (c) a balloon (d) a teaspoon
3. 3.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
4. 4.⚖️ 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 amount of sugar (c) the water temperature
5. 5.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) slower (c) not at all (d) the same
6. 6.🥄 Which of these dissolves in water? (a) small pebbles (b) cooking oil (c) table salt (d) chalk powder
7. 7.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a balloon (b) cold water (c) a teaspoon (d) warm water
8. 8.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
9. 9.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a magnet (c) a clock or timer (d) cold water
10. 10.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it floats up (c) it settles at the bottom (d) it dissolves
11. 11.True or false: sugar in icy water dissolves slower. (a) True (b) False
12. 12.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a friend who is running (c) the youngest child (d) a grown-up
13. 13.🔮 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
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 amount of sugar (b) the water temperature (c) the amount of water (d) time to dissolve
15. 15.⚖️ 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
16. 16.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
17. 17.True or false: table salt does not dissolve in water. (a) True (b) False
18. 18.⚖️ 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
19. 19.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar left unstirred (d) sugar stirred well
20. 20.⚖️ 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
21. 21.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) neither of them (c) the sugar cube (d) powdered sugar
22. 22.🔍 Which is the odd one out? (a) cooking oil (b) table salt (c) sawdust (d) small pebbles
23. 23.⚖️ 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
24. 24.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
25. 25.⚖️ 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
26. 26.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a comb (c) cold water (d) honey
27. 27.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) warm water (c) cotton wool (d) a teaspoon
28. 28.⚖️ 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
29. 29.🔍 How can you get the salt back from salty water? (a) add more water (b) let the water evaporate (c) stir it more (d) keep it in a fridge
30. 30.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
31. 31.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
32. 32.True or false: small pebbles dissolves in water. (a) False (b) True
33. 33.True or false: sugar in icy water dissolves faster. (a) True (b) False
34. 34.True or false: warm water is not needed for the dissolving test. (a) False (b) True
35. 35.True or false: a big sugar cube dissolves faster. (a) False (b) True
36. 36.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) a clock or timer (c) warm water (d) a comb
37. 37.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
38. 38.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
39. 39.True or false: a magnet is needed for the dissolving test. (a) False (b) True
40. 40.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed

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