Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 742 · 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.⚖️ 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 amount of water (c) the water temperature (d) the amount of sugar
2. 2.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) warm water (c) cold water (d) honey
3. 3.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) sugar (c) a magnet (d) two clear glasses
4. 4.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it vanished for ever (c) it sank as sand (d) it became air
5. 5.True or false: sugar does not dissolve in water. (a) True (b) False
6. 6.🔍 Which is the odd one out? (a) chalk powder (b) baking soda (c) table salt (d) sugar
7. 7.🥄 Which of these dissolves faster? (a) sugar in icy water (b) powdered sugar (c) a big sugar cube (d) sugar left unstirred
8. 8.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
9. 9.⚖️ 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 change it (c) we keep it the same
10. 10.True or false: a clock or timer is not needed for the dissolving test. (a) True (b) False
11. 11.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) some stays undissolved (c) all of it dissolves (d) the sugar turns to salt
12. 12.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) stir it more (c) add more water (d) let the water evaporate
13. 13.True or false: powdered sugar dissolves slower. (a) True (b) False
14. 14.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it turns blue (c) it dissolves (d) it settles at the bottom
15. 15.🔍 Which is the odd one out? (a) cooking oil (b) sawdust (c) small pebbles (d) table salt
16. 16.True or false: cold water is not needed for the dissolving test. (a) True (b) False
17. 17.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
18. 18.True or false: baking soda does not dissolve in water. (a) True (b) False
19. 19.True or false: food colour dissolves in water. (a) False (b) True
20. 20.🧺 Which of these is needed for the dissolving test? (a) cold water (b) cotton wool (c) a magnet (d) a comb
21. 21.True or false: sugar is not needed for the dissolving test. (a) False (b) True
22. 22.🥄 Which of these dissolves in water? (a) food colour (b) sawdust (c) sand (d) cooking oil
23. 23.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
24. 24.🔍 Which is the odd one out? (a) sawdust (b) sugar (c) cooking oil (d) chalk powder
25. 25.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) sugar (c) a teaspoon (d) a magnet
26. 26.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) warm water is thicker (c) particles move faster (d) cold water is wet
27. 27.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
28. 28.⚖️ 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 stirring (c) the amount of sugar (d) the kind of sugar
29. 29.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we keep it the same (b) we change it (c) we measure it
30. 30.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) both the same (c) powdered sugar (d) the sugar cube
31. 31.⚖️ 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
32. 32.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
33. 33.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) the youngest child (c) a grown-up (d) nobody needs to
34. 34.True or false: a comb is needed for the dissolving test. (a) True (b) False
35. 35.🥄 Which of these dissolves in water? (a) sand (b) cooking oil (c) chalk powder (d) sugar
36. 36.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
37. 37.🧺 Which of these is not needed for the dissolving test? (a) a balloon (b) warm water (c) sugar (d) cold water
38. 38.True or false: sugar in warm water dissolves faster. (a) False (b) True
39. 39.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) honey (c) cold water (d) a teaspoon
40. 40.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed

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