Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 96 · 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: food colour does not dissolve in water. (a) False (b) True
2. 2.True or false: powdered sugar dissolves faster. (a) True (b) False
3. 3.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) two clear glasses (c) a balloon (d) cotton wool
4. 4.True or false: cotton wool is not needed for the dissolving test. (a) False (b) True
5. 5.⚖️ 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 kind of sugar (c) the water temperature
6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we change it (b) we keep it the same (c) we measure it
7. 7.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) sugar (c) a balloon (d) cold water
8. 8.True or false: sugar in warm water dissolves faster. (a) False (b) True
9. 9.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
10. 10.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
11. 11.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
12. 12.🥄 Which of these dissolves in water? (a) chalk powder (b) sand (c) table salt (d) small pebbles
13. 13.⚖️ 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) time to dissolve (c) the amount of sugar (d) the water temperature
14. 14.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) the water turns solid (c) all of it dissolves (d) the sugar turns to salt
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is the one thing we change. (a) False (b) True
16. 16.⚖️ 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 kind of sugar (c) the amount of water (d) the water temperature
17. 17.True or false: baking soda dissolves in water. (a) True (b) False
18. 18.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
19. 19.True or false: powdered sugar dissolves slower. (a) False (b) True
20. 20.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) powdered sugar (c) sugar in icy water (d) a big sugar cube
21. 21.🔍 Which is the odd one out? (a) sand (b) food colour (c) chalk powder (d) small pebbles
22. 22.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) both the same (c) neither of them (d) powdered sugar
23. 23.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a magnet (c) a solution (d) a rainbow
24. 24.⚖️ 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) False (b) True
25. 25.True or false: cooking oil does not dissolve in water. (a) False (b) True
26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we measure it (b) we keep it the same (c) we change it
27. 27.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
28. 28.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
29. 29.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) a balloon (c) a teaspoon (d) a comb
30. 30.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
31. 31.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a clock or timer (c) honey (d) cold water
32. 32.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) slower (c) the same (d) faster
33. 33.🔍 How can you get the salt back from salty water? (a) stir it more (b) add more water (c) let the water evaporate (d) keep it in a fridge
34. 34.⚖️ 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
35. 35.True or false: cold water is needed for the dissolving test. (a) False (b) True
36. 36.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
37. 37.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
38. 38.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) the youngest child (c) a friend who is running (d) nobody needs to
39. 39.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it turns blue (c) it dissolves (d) it settles at the bottom
40. 40.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a magnet (c) cold water (d) two clear glasses

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