Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 842 · 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.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a mirror (c) sugar (d) a balloon
2. 2.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it became air (c) it spread in the water (d) it vanished for ever
3. 3.True or false: honey is not needed for the dissolving test. (a) False (b) True
4. 4.True or false: food colour dissolves in water. (a) False (b) True
5. 5.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a rainbow (c) a magnet (d) a solution
6. 6.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
7. 7.🥄 Which of these dissolves faster? (a) sugar stirred well (b) sugar in icy water (c) sugar left unstirred (d) a big sugar cube
8. 8.⚖️ 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) True (b) False
9. 9.True or false: powdered sugar dissolves faster. (a) False (b) True
10. 10.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
11. 11.⚖️ 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
12. 12.True or false: sugar stirred well dissolves faster. (a) False (b) True
13. 13.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) cold water is wet (c) sugar likes the dark (d) warm water is thicker
14. 14.True or false: sugar stirred well dissolves slower. (a) True (b) False
15. 15.⚖️ 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) time to dissolve (d) the water temperature
16. 16.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) powdered sugar (d) a big sugar cube
17. 17.🧺 Which of these is not needed for the dissolving test? (a) a magnet (b) a clock or timer (c) two clear glasses (d) sugar
18. 18.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
19. 19.True or false: sugar left unstirred dissolves slower. (a) False (b) True
20. 20.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
21. 21.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a mirror (c) a teaspoon (d) sugar
22. 22.True or false: a mirror is needed for the dissolving test. (a) False (b) True
23. 23.🥄 Which of these dissolves slower? (a) sugar stirred well (b) powdered sugar (c) a big sugar cube (d) sugar in warm water
24. 24.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) time to dissolve (b) the amount of water (c) the kind of sugar (d) the water temperature
25. 25.⚖️ 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
26. 26.⚖️ 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
27. 27.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
28. 28.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) poke it with a finger (c) smell it closely (d) taste it
29. 29.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) warm water (c) a teaspoon (d) honey
30. 30.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) neither of them (c) powdered sugar (d) the sugar cube
31. 31.🥄 Which of these does not dissolve in water? (a) food colour (b) table salt (c) chalk powder (d) sugar
32. 32.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) cold water (c) two clear glasses (d) a balloon
33. 33.True or false: sugar in icy water dissolves faster. (a) False (b) True
34. 34.🥄 Which of these does not dissolve in water? (a) sugar (b) glucose powder (c) table salt (d) small pebbles
35. 35.True or false: a big sugar cube dissolves slower. (a) True (b) False
36. 36.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
37. 37.🧺 Which of these is needed for the dissolving test? (a) two clear glasses (b) cotton wool (c) a comb (d) honey
38. 38.True or false: sugar in warm water dissolves slower. (a) True (b) False
39. 39.🥄 Which of these does not dissolve in water? (a) sugar (b) food colour (c) glucose powder (d) sawdust
40. 40.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) all of it dissolves (c) some stays undissolved (d) the sugar turns to salt

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