Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 554 · 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.🛟 How should you check if the sugar has dissolved? (a) taste it (b) smell it closely (c) poke it with a finger (d) look for leftover grains
2. 2.True or false: cotton wool is not needed for the dissolving test. (a) False (b) True
3. 3.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
4. 4.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) the sugar cube (c) neither of them (d) powdered sugar
5. 5.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) a friend who is running (c) nobody needs to (d) the youngest child
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 measure it (c) we keep it the same
7. 7.True or false: a clock or timer is needed for the dissolving test. (a) True (b) False
8. 8.True or false: sugar in warm water dissolves slower. (a) False (b) True
9. 9.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the water temperature (b) the amount of water (c) time to dissolve
10. 10.True or false: honey is needed for the dissolving test. (a) True (b) False
11. 11.🥄 Which of these does not dissolve in water? (a) food colour (b) table salt (c) sawdust (d) sugar
12. 12.⚖️ 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) the amount of sugar (c) the kind of sugar (d) time to dissolve
13. 13.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) the same (c) faster (d) slower
14. 14.True or false: food colour dissolves in water. (a) True (b) False
15. 15.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar stirred well (d) sugar left unstirred
16. 16.True or false: sugar stirred well dissolves faster. (a) False (b) True
17. 17.True or false: sugar stirred well dissolves slower. (a) False (b) True
18. 18.⚖️ 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
19. 19.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) True (b) False
20. 20.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a clock or timer (c) warm water (d) a mirror
21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we measure it (b) we keep it the same (c) we change it
22. 22.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a balloon (c) two clear glasses (d) warm water
23. 23.⚖️ 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
24. 24.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) cold water is wet (c) warm water is thicker (d) particles move faster
25. 25.True or false: sugar left unstirred dissolves faster. (a) False (b) True
26. 26.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) warm water (c) cold water (d) a magnet
27. 27.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
28. 28.True or false: baking soda does not dissolve in water. (a) True (b) False
29. 29.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
30. 30.True or false: two clear glasses is needed for the dissolving test. (a) True (b) False
31. 31.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the kind of sugar (b) the amount of sugar (c) the amount of water (d) the water temperature
32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the stirring (b) time to dissolve (c) the water temperature
33. 33.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a teaspoon (c) warm water (d) a magnet
34. 34.🔍 Which is the odd one out? (a) small pebbles (b) glucose powder (c) baking soda (d) food colour
35. 35.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar in icy water (c) sugar stirred well (d) powdered sugar
36. 36.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
37. 37.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cotton wool (b) warm water (c) a clock or timer (d) cold water
38. 38.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) all of it dissolves (c) the sugar turns to salt (d) the water turns solid
39. 39.True or false: sugar in warm water dissolves faster. (a) True (b) False
40. 40.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower

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