Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 498 · 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? What do we do with “the water temperature”? (a) we change it (b) we measure it (c) we keep it the same
2. 2.True or false: a big sugar cube dissolves slower. (a) False (b) True
3. 3.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
4. 4.True or false: sugar is not needed for the dissolving test. (a) False (b) True
5. 5.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) the same (c) faster (d) slower
6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the stirring (b) time to dissolve (c) the amount of water (d) the water temperature
7. 7.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) neither of them (c) both the same (d) the sugar cube
8. 8.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a mirror (b) cold water (c) a teaspoon (d) sugar
9. 9.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) a big sugar cube (d) sugar stirred well
10. 10.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) two clear glasses (c) warm water (d) a balloon
11. 11.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) let the water evaporate (c) stir it more (d) add more water
12. 12.🧺 Which of these is needed for the dissolving test? (a) warm water (b) a comb (c) a balloon (d) honey
13. 13.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
14. 14.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
15. 15.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) two clear glasses (c) honey (d) a teaspoon
16. 16.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
17. 17.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
18. 18.True or false: food colour does not dissolve in water. (a) False (b) True
19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a clock or timer (c) a magnet (d) a teaspoon
20. 20.True or false: sugar left unstirred dissolves faster. (a) False (b) True
21. 21.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
22. 22.True or false: glucose powder does not dissolve in water. (a) True (b) False
23. 23.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
24. 24.🥄 Which of these does not dissolve in water? (a) sawdust (b) baking soda (c) food colour (d) table salt
25. 25.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in warm water (c) powdered sugar (d) sugar left unstirred
26. 26.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it dissolves (c) it settles at the bottom (d) it turns blue
27. 27.🔍 Which is the odd one out? (a) chalk powder (b) glucose powder (c) table salt (d) baking soda
28. 28.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
29. 29.True or false: sugar stirred well dissolves slower. (a) False (b) True
30. 30.⚖️ 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
31. 31.⚖️ 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 measure it (c) we keep it the same
32. 32.🔍 Which is the odd one out? (a) table salt (b) baking soda (c) food colour (d) small pebbles
33. 33.🔍 Which is the odd one out? (a) sand (b) sugar (c) small pebbles (d) chalk powder
34. 34.True or false: cooking oil does not dissolve in water. (a) False (b) True
35. 35.True or false: small pebbles does not dissolve in water. (a) True (b) False
36. 36.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the sugar turns to salt (b) some stays undissolved (c) the water turns solid (d) all of it dissolves
37. 37.🔍 Which is the odd one out? (a) table salt (b) sand (c) sugar (d) food colour
38. 38.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a comb (c) cold water (d) two clear glasses
39. 39.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is the one thing we change. (a) True (b) False
40. 40.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) sugar (c) cold water (d) a balloon

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