Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 790 · 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.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a magnet (c) a solution (d) a rainbow
2. 2.True or false: sugar in icy water dissolves faster. (a) False (b) True
3. 3.🥄 Which of these dissolves in water? (a) sawdust (b) glucose powder (c) chalk powder (d) sand
4. 4.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
5. 5.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we change it (b) we measure it (c) we keep it the same
6. 6.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a balloon (b) two clear glasses (c) a teaspoon (d) warm water
7. 7.🔍 Which is the odd one out? (a) glucose powder (b) table salt (c) food colour (d) small pebbles
8. 8.⚖️ 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
9. 9.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) warm water (c) a magnet (d) a clock or timer
10. 10.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
11. 11.🔮 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
12. 12.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a mirror (c) a clock or timer (d) cotton wool
13. 13.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) powdered sugar (c) neither of them (d) both the same
14. 14.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
15. 15.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
16. 16.⚖️ 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) True (b) False
17. 17.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar left unstirred (c) sugar stirred well (d) powdered sugar
18. 18.True or false: sugar in icy water dissolves slower. (a) False (b) True
19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a mirror (c) a clock or timer (d) a teaspoon
20. 20.⚖️ 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 water temperature (c) the stirring (d) the amount of water
21. 21.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
22. 22.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar left unstirred (d) sugar stirred well
23. 23.True or false: two clear glasses is needed for the dissolving test. (a) False (b) True
24. 24.🥄 Which of these dissolves in water? (a) small pebbles (b) sawdust (c) chalk powder (d) sugar
25. 25.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a teaspoon (c) warm water (d) a comb
26. 26.🔍 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
27. 27.True or false: sand dissolves in water. (a) False (b) True
28. 28.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it vanished for ever (c) it became air (d) it sank as sand
29. 29.True or false: powdered sugar dissolves faster. (a) True (b) False
30. 30.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
31. 31.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) cold water is wet (c) warm water is thicker (d) sugar likes the dark
32. 32.🔍 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
33. 33.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
34. 34.True or false: powdered sugar dissolves slower. (a) False (b) True
35. 35.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) the same (c) slower (d) not at all
36. 36.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we measure it (b) we keep it the same (c) we change it
37. 37.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
38. 38.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar in icy water (c) powdered sugar (d) sugar stirred well
39. 39.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of sugar (b) the water temperature (c) time to dissolve
40. 40.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve

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