Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 523 · 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.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it vanished for ever (c) it spread in the water (d) it became air
2. 2.True or false: sawdust does not dissolve in water. (a) False (b) True
3. 3.🔍 Which is the odd one out? (a) sugar (b) glucose powder (c) baking soda (d) chalk powder
4. 4.True or false: powdered sugar dissolves slower. (a) True (b) False
5. 5.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a comb (c) a magnet (d) a clock or timer
6. 6.🧺 Which of these is not needed for the dissolving test? (a) a mirror (b) warm water (c) cold water (d) two clear glasses
7. 7.⚖️ 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
8. 8.⚖️ 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) False (b) True
9. 9.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) sugar left unstirred (d) powdered sugar
10. 10.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the stirring (b) time to dissolve (c) the kind of sugar (d) the water temperature
12. 12.🔍 Which is the odd one out? (a) food colour (b) sugar (c) sawdust (d) glucose powder
13. 13.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) cotton wool (c) cold water (d) a clock or timer
14. 14.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
15. 15.True or false: sugar in warm water dissolves slower. (a) False (b) True
16. 16.True or false: small pebbles dissolves in water. (a) False (b) True
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) time to dissolve (b) the water temperature (c) the stirring
18. 18.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a friend who is running (c) the youngest child (d) a grown-up
19. 19.True or false: sugar left unstirred dissolves slower. (a) False (b) True
20. 20.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
21. 21.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in icy water (c) sugar stirred well (d) sugar in warm water
22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we change it (b) we keep it the same (c) we measure it
23. 23.🔍 Which is the odd one out? (a) cooking oil (b) small pebbles (c) chalk powder (d) baking soda
24. 24.🛟 How should you check if the sugar has dissolved? (a) taste it (b) smell it closely (c) poke it with a finger (d) look for leftover grains
25. 25.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) the water turns solid (c) the sugar turns to salt (d) some stays undissolved
26. 26.True or false: sugar stirred well dissolves slower. (a) False (b) True
27. 27.⚖️ 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 keep it the same (c) we change it
28. 28.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) honey (c) cold water (d) a magnet
29. 29.True or false: a clock or timer is not needed for the dissolving test. (a) False (b) True
30. 30.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) two clear glasses (c) cold water (d) a balloon
31. 31.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) sugar (c) a mirror (d) cold water
32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the water temperature (b) the stirring (c) the amount of sugar (d) the amount of water
33. 33.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
34. 34.True or false: a mirror is needed for the dissolving test. (a) True (b) False
35. 35.🥄 Which of these dissolves in water? (a) chalk powder (b) small pebbles (c) cooking oil (d) food colour
36. 36.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
37. 37.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) cold water is wet (c) warm water is thicker (d) particles move faster
38. 38.True or false: table salt dissolves in water. (a) False (b) True
39. 39.🥄 Which of these dissolves in water? (a) sand (b) cooking oil (c) table salt (d) sawdust
40. 40.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster

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