Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 359 · 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.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) faster (c) slower (d) the same
2. 2.⚖️ 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 measure it (c) we keep it the same
3. 3.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
4. 4.🔍 How can you get the salt back from salty water? (a) let the water evaporate (b) add more water (c) keep it in a fridge (d) stir it more
5. 5.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar in icy water (c) sugar stirred well (d) powdered sugar
6. 6.🥄 Which of these does not dissolve in water? (a) food colour (b) baking soda (c) sugar (d) sand
7. 7.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
8. 8.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is kept the same. (a) False (b) True
9. 9.🔍 Which is the odd one out? (a) glucose powder (b) food colour (c) small pebbles (d) table salt
10. 10.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar stirred well (c) a big sugar cube (d) sugar left unstirred
11. 11.True or false: cooking oil does not dissolve in water. (a) False (b) True
12. 12.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a rainbow (c) a magnet (d) a solution
13. 13.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
14. 14.🔍 Which is the odd one out? (a) chalk powder (b) cooking oil (c) table salt (d) sawdust
15. 15.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) a magnet (c) warm water (d) a comb
16. 16.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) cold water (c) honey (d) two clear glasses
17. 17.⚖️ 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 change it (c) we keep it the same
18. 18.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) chalk powder (b) baking soda (c) small pebbles (d) sand
20. 20.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) the sugar cube (c) both the same (d) powdered sugar
21. 21.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
22. 22.⚖️ 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
23. 23.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
24. 24.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a clock or timer (c) sugar (d) a balloon
25. 25.⚖️ 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) True (b) False
26. 26.🔍 Which is the odd one out? (a) sawdust (b) food colour (c) cooking oil (d) sand
27. 27.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
28. 28.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
29. 29.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a teaspoon (c) honey (d) a mirror
30. 30.True or false: baking soda does not dissolve in water. (a) True (b) False
31. 31.⚖️ 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
32. 32.True or false: cotton wool is not needed for the dissolving test. (a) True (b) False
33. 33.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it vanished for ever (c) it sank as sand (d) it spread in the water
34. 34.⚖️ 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 measure it (c) we change it
35. 35.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the water temperature (b) the amount of sugar (c) the amount of water (d) time to dissolve
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) the water turns solid (c) all of it dissolves (d) some stays undissolved
37. 37.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
38. 38.🥄 Which of these dissolves in water? (a) cooking oil (b) small pebbles (c) sand (d) sugar
39. 39.⚖️ 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
40. 40.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed

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