Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 839 · 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) sugar (c) a comb (d) a teaspoon
2. 2.🥄 Which of these does not dissolve in water? (a) cooking oil (b) sugar (c) glucose powder (d) baking soda
3. 3.🥄 Which of these does not dissolve in water? (a) glucose powder (b) sugar (c) baking soda (d) sand
4. 4.True or false: cotton wool is not needed for the dissolving test. (a) False (b) True
5. 5.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) smell it closely (c) taste it (d) look for leftover grains
6. 6.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
7. 7.⚖️ 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
8. 8.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) warm water is thicker (c) sugar likes the dark (d) particles move faster
9. 9.🔍 Sand is stirred into water. What do you see after a while? (a) it settles at the bottom (b) it turns blue (c) it floats up (d) it dissolves
10. 10.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
11. 11.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a grown-up (c) nobody needs to (d) a friend who is running
12. 12.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) honey (c) warm water (d) a clock or timer
13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is the one thing we change. (a) True (b) False
14. 14.🧺 Which of these is needed for the dissolving test? (a) a comb (b) honey (c) two clear glasses (d) a magnet
15. 15.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
16. 16.🔍 Which is the odd one out? (a) glucose powder (b) cooking oil (c) sugar (d) baking soda
17. 17.True or false: sugar left unstirred dissolves slower. (a) True (b) False
18. 18.🥄 Which of these dissolves in water? (a) small pebbles (b) food colour (c) sawdust (d) cooking oil
19. 19.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a rainbow (c) a solution (d) a magnet
20. 20.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
21. 21.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
22. 22.True or false: sugar stirred well dissolves slower. (a) True (b) False
23. 23.True or false: sugar left unstirred dissolves faster. (a) True (b) False
24. 24.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
25. 25.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of sugar (b) the water temperature (c) time to dissolve (d) the amount of water
26. 26.True or false: sand dissolves in water. (a) True (b) False
27. 27.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) False (b) True
29. 29.True or false: a comb is not needed for the dissolving test. (a) True (b) False
30. 30.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
31. 31.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) both the same (c) the sugar cube (d) neither of them
32. 32.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a magnet (c) a clock or timer (d) warm water
33. 33.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
34. 34.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
35. 35.🔍 Which is the odd one out? (a) table salt (b) baking soda (c) glucose powder (d) small pebbles
36. 36.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
37. 37.⚖️ 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
38. 38.⚖️ 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 keep it the same (c) we measure it
39. 39.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) not at all (c) faster (d) the same
40. 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is the one thing we change. (a) True (b) False

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