Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 901 · 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 dissolves in water? (a) sand (b) baking soda (c) cooking oil (d) small pebbles
2. 2.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar stirred well (d) sugar in icy water
3. 3.🥄 Which of these does not dissolve in water? (a) food colour (b) table salt (c) glucose powder (d) sawdust
4. 4.🥄 Which of these dissolves in water? (a) sugar (b) cooking oil (c) chalk powder (d) sand
5. 5.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) a balloon (c) two clear glasses (d) a clock or timer
6. 6.⚖️ 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) the amount of sugar (c) time to dissolve
7. 7.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
8. 8.⚖️ 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
9. 9.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is kept the same. (a) True (b) False
10. 10.🥄 Which of these dissolves faster? (a) sugar stirred well (b) sugar left unstirred (c) a big sugar cube (d) sugar in icy water
11. 11.True or false: sugar in icy water dissolves slower. (a) True (b) False
12. 12.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) sugar likes the dark (c) particles move faster (d) cold water is wet
13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the amount of sugar (b) the amount of water (c) time to dissolve (d) the water temperature
14. 14.🔍 Which is the odd one out? (a) small pebbles (b) food colour (c) sugar (d) table salt
15. 15.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) the sugar turns to salt (c) all of it dissolves (d) some stays undissolved
16. 16.🥄 Which of these does not dissolve in water? (a) glucose powder (b) table salt (c) baking soda (d) small pebbles
17. 17.🔍 Which is the odd one out? (a) baking soda (b) sand (c) chalk powder (d) cooking oil
18. 18.True or false: cooking oil dissolves in water. (a) False (b) True
19. 19.True or false: sugar left unstirred dissolves slower. (a) False (b) True
20. 20.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) cold water (c) a balloon (d) cotton wool
21. 21.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a teaspoon (c) a clock or timer (d) a magnet
22. 22.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) sugar in warm water (d) sugar left unstirred
23. 23.⚖️ 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
24. 24.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) two clear glasses (c) sugar (d) cotton wool
25. 25.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) add more water (c) let the water evaporate (d) stir it more
26. 26.⚖️ 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
27. 27.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
28. 28.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a solution (c) a rainbow (d) a crystal
29. 29.True or false: a magnet is needed for the dissolving test. (a) False (b) True
30. 30.True or false: small pebbles dissolves in water. (a) False (b) True
31. 31.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is the one thing we change. (a) True (b) False
32. 32.True or false: glucose powder does not dissolve in water. (a) True (b) False
33. 33.True or false: small pebbles does not dissolve in water. (a) True (b) False
34. 34.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
35. 35.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) cold water (c) a mirror (d) sugar
36. 36.True or false: sugar in warm water dissolves slower. (a) True (b) False
37. 37.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) look for leftover grains (c) smell it closely (d) taste it
38. 38.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a magnet (c) warm water (d) cold water
39. 39.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it sank as sand (c) it spread in the water (d) it became air
40. 40.🥄 Which of these dissolves in water? (a) sand (b) table salt (c) small pebbles (d) chalk powder

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