Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 625 · 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.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) neither of them (c) the sugar cube (d) both the same
2. 2.🥄 Which of these dissolves in water? (a) small pebbles (b) sawdust (c) chalk powder (d) table salt
3. 3.⚖️ 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) False (b) True
4. 4.True or false: sugar stirred well dissolves slower. (a) False (b) True
5. 5.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
6. 6.🛟 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
7. 7.True or false: glucose powder dissolves in water. (a) True (b) False
8. 8.⚖️ 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
9. 9.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) honey (c) sugar (d) warm water
10. 10.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar in icy water (d) sugar in warm water
11. 11.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) taste it (c) smell it closely (d) poke it with a finger
12. 12.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) not at all (c) slower (d) the same
13. 13.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
14. 14.🔍 Which is the odd one out? (a) sawdust (b) sugar (c) glucose powder (d) table salt
15. 15.🥄 Which of these dissolves slower? (a) sugar in icy water (b) powdered sugar (c) sugar stirred well (d) sugar in warm water
16. 16.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
17. 17.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
18. 18.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the sugar turns to salt (b) some stays undissolved (c) the water turns solid (d) all of it dissolves
19. 19.True or false: sugar in warm water dissolves faster. (a) False (b) True
20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we change it (b) we keep it the same (c) we measure it
21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we measure it (b) we change it (c) we keep it the same
22. 22.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
23. 23.⚖️ 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
24. 24.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the stirring (b) the kind of sugar (c) the water temperature (d) the amount of sugar
25. 25.True or false: honey is not needed for the dissolving test. (a) True (b) False
26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we measure it (b) we keep it the same (c) we change it
27. 27.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
28. 28.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) powdered sugar (d) a big sugar cube
29. 29.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a teaspoon (c) a clock or timer (d) honey
30. 30.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
31. 31.🧺 Which of these is not needed for the dissolving test? (a) cotton wool (b) sugar (c) a clock or timer (d) two clear glasses
32. 32.🔍 Which is the odd one out? (a) small pebbles (b) sand (c) cooking oil (d) baking soda
33. 33.True or false: sugar in icy water dissolves slower. (a) True (b) False
34. 34.True or false: a mirror is not needed for the dissolving test. (a) True (b) False
35. 35.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a mirror (b) a teaspoon (c) a clock or timer (d) sugar
36. 36.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
37. 37.True or false: cold water is not needed for the dissolving test. (a) False (b) True
38. 38.True or false: two clear glasses is needed for the dissolving test. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) cooking oil (b) sawdust (c) chalk powder (d) sugar
40. 40.🥄 Which of these does not dissolve in water? (a) food colour (b) glucose powder (c) sugar (d) sand

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