Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 670 · 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.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a clock or timer (c) two clear glasses (d) a balloon
2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is what we measure. (a) False (b) True
3. 3.🥄 Which of these dissolves in water? (a) small pebbles (b) baking soda (c) cooking oil (d) chalk powder
4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we keep it the same (b) we measure it (c) we change it
5. 5.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
6. 6.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) not at all (c) faster (d) the same
7. 7.🥄 Which of these does not dissolve in water? (a) cooking oil (b) baking soda (c) table salt (d) sugar
8. 8.🔍 Which is the odd one out? (a) glucose powder (b) sand (c) baking soda (d) table salt
9. 9.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) powdered sugar (c) neither of them (d) the sugar cube
10. 10.🥄 Which of these dissolves in water? (a) chalk powder (b) sand (c) glucose powder (d) sawdust
11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is the one thing we change. (a) True (b) False
12. 12.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we keep it the same (b) we measure it (c) we change it
13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is what we measure. (a) True (b) False
14. 14.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a balloon (c) cotton wool (d) two clear glasses
15. 15.🔍 Which is the odd one out? (a) food colour (b) cooking oil (c) glucose powder (d) sugar
16. 16.⚖️ 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
17. 17.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) stir it more (c) let the water evaporate (d) add more water
18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we keep it the same (b) we measure it (c) we change it
19. 19.True or false: sugar in warm water dissolves slower. (a) True (b) False
20. 20.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a friend who is running (c) a grown-up (d) the youngest child
21. 21.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is the one thing we change. (a) True (b) False
23. 23.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) cold water is wet (c) particles move faster (d) warm water is thicker
24. 24.⚖️ 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
25. 25.⚖️ 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) True (b) False
26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we measure it (b) we keep it the same (c) we change it
27. 27.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) two clear glasses (c) sugar (d) a balloon
28. 28.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
29. 29.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it settles at the bottom (c) it turns blue (d) it floats up
30. 30.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a teaspoon (c) two clear glasses (d) a magnet
31. 31.True or false: sugar stirred well dissolves slower. (a) False (b) True
32. 32.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
33. 33.True or false: sugar in icy water dissolves slower. (a) False (b) True
34. 34.True or false: a clock or timer is not needed for the dissolving test. (a) True (b) False
35. 35.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a clock or timer (c) a comb (d) a balloon
36. 36.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
37. 37.True or false: food colour does not dissolve in water. (a) True (b) False
38. 38.True or false: sand dissolves in water. (a) False (b) True
39. 39.True or false: two clear glasses is needed for the dissolving test. (a) False (b) True
40. 40.⚖️ 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 water (b) the amount of sugar (c) the water temperature (d) the kind of sugar

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