Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 41 · 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 dissolves faster? (a) a big sugar cube (b) sugar in warm water (c) sugar left unstirred (d) sugar in icy water
2. 2.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
3. 3.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it settles at the bottom (c) it dissolves (d) it turns blue
4. 4.True or false: two clear glasses is needed for the dissolving test. (a) True (b) False
5. 5.⚖️ 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 change it (c) we keep it the same
6. 6.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) sugar likes the dark (c) warm water is thicker (d) particles move faster
7. 7.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar stirred well (d) a big sugar cube
8. 8.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a clock or timer (c) a teaspoon (d) a mirror
9. 9.🥄 Which of these does not dissolve in water? (a) baking soda (b) table salt (c) small pebbles (d) food colour
10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) False (b) True
11. 11.🥄 Which of these dissolves in water? (a) sugar (b) sand (c) chalk powder (d) cooking oil
12. 12.⚖️ 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
13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is what we measure. (a) False (b) True
14. 14.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
15. 15.True or false: cooking oil does not dissolve in water. (a) True (b) False
16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we change it (b) we keep it the same (c) we measure it
17. 17.⚖️ 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) time to dissolve (c) the stirring
18. 18.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a comb (c) cotton wool (d) cold water
19. 19.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
20. 20.True or false: sugar does not dissolve in water. (a) True (b) False
21. 21.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) nobody needs to (c) a friend who is running (d) the youngest child
22. 22.⚖️ 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) time to dissolve (c) the amount of sugar
23. 23.🧺 Which of these is needed for the dissolving test? (a) a comb (b) cotton wool (c) two clear glasses (d) a balloon
24. 24.True or false: sawdust dissolves in water. (a) True (b) False
25. 25.True or false: a big sugar cube dissolves slower. (a) True (b) False
26. 26.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
27. 27.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar in icy water (d) powdered sugar
28. 28.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
29. 29.🔍 Which is the odd one out? (a) cooking oil (b) table salt (c) chalk powder (d) small pebbles
30. 30.True or false: sugar dissolves in water. (a) True (b) False
31. 31.True or false: sawdust does not dissolve in water. (a) False (b) True
32. 32.🥄 Which of these dissolves slower? (a) sugar left unstirred (b) sugar stirred well (c) sugar in warm water (d) powdered sugar
33. 33.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) neither of them (c) powdered sugar (d) both the same
34. 34.🥄 Which of these does not dissolve in water? (a) cooking oil (b) table salt (c) sugar (d) baking soda
35. 35.⚖️ 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 sugar (c) the kind of sugar (d) the stirring
36. 36.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
37. 37.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
38. 38.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
39. 39.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is kept the same. (a) True (b) False
40. 40.⚖️ 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

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