Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 910 · 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 does not dissolve in water? (a) glucose powder (b) sand (c) table salt (d) sugar
2. 2.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it became air (c) it spread in the water (d) it vanished for ever
3. 3.True or false: a comb is needed for the dissolving test. (a) True (b) False
4. 4.🔍 Which is the odd one out? (a) sawdust (b) baking soda (c) sand (d) chalk powder
5. 5.🧺 Which of these is not needed for the dissolving test? (a) honey (b) sugar (c) warm water (d) a clock or timer
6. 6.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) cotton wool (c) two clear glasses (d) honey
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 change it (b) we keep it the same (c) we measure it
8. 8.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) the sugar cube (c) powdered sugar (d) both the same
9. 9.🔍 Which is the odd one out? (a) table salt (b) food colour (c) sugar (d) cooking oil
10. 10.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) a big sugar cube (d) powdered sugar
11. 11.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
12. 12.⚖️ 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 measure it (c) we change it
13. 13.🥄 Which of these does not dissolve in water? (a) table salt (b) sugar (c) chalk powder (d) food colour
14. 14.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
15. 15.🛟 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
16. 16.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
17. 17.⚖️ 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 water temperature (c) the amount of sugar (d) the kind of sugar
18. 18.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) honey (c) a comb (d) a teaspoon
19. 19.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar left unstirred (d) sugar stirred well
20. 20.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) particles move faster (c) cold water is wet (d) sugar likes the dark
21. 21.⚖️ 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) False (b) True
22. 22.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
23. 23.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) warm water (c) cold water (d) two clear glasses
24. 24.True or false: sawdust does not dissolve in water. (a) True (b) False
25. 25.⚖️ 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 measure it (c) we keep it the same
26. 26.⚖️ 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
27. 27.⚖️ 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
28. 28.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a balloon (b) a teaspoon (c) two clear glasses (d) a clock or timer
29. 29.🔍 Which is the odd one out? (a) sand (b) table salt (c) chalk powder (d) cooking oil
30. 30.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) cotton wool (c) a clock or timer (d) warm water
31. 31.🔍 Which is the odd one out? (a) small pebbles (b) chalk powder (c) glucose powder (d) sawdust
32. 32.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
33. 33.⚖️ 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
34. 34.🥄 Which of these does not dissolve in water? (a) cooking oil (b) sugar (c) food colour (d) glucose powder
35. 35.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar in warm water (d) sugar in icy water
36. 36.⚖️ 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
37. 37.🔮 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) the water turns solid (c) all of it dissolves (d) some stays undissolved
38. 38.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
39. 39.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
40. 40.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) smell it closely (c) look for leftover grains (d) taste it

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