Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 859 · 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) food colour (b) sugar (c) sand (d) glucose powder
2. 2.True or false: a mirror is needed for the dissolving test. (a) False (b) True
3. 3.🔍 How can you get the salt back from salty water? (a) let the water evaporate (b) keep it in a fridge (c) add more water (d) stir it more
4. 4.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
5. 5.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the kind of sugar (b) time to dissolve (c) the water temperature
6. 6.True or false: a comb is not needed for the dissolving test. (a) True (b) False
7. 7.⚖️ 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
8. 8.⚖️ 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) time to dissolve (c) the water temperature (d) the amount of sugar
9. 9.🔍 Which is the odd one out? (a) small pebbles (b) sawdust (c) sand (d) glucose powder
10. 10.🧺 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) a teaspoon
11. 11.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) some stays undissolved (c) the water turns solid (d) the sugar turns to salt
12. 12.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a balloon (c) a clock or timer (d) two clear glasses
13. 13.🥄 Which of these does not dissolve in water? (a) table salt (b) baking soda (c) chalk powder (d) glucose powder
14. 14.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
15. 15.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) warm water is thicker (c) sugar likes the dark (d) particles move faster
16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is the one thing we change. (a) True (b) False
17. 17.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
18. 18.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a magnet (c) honey (d) a clock or timer
19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a teaspoon (c) a balloon (d) sugar
20. 20.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) cold water (c) two clear glasses (d) a magnet
21. 21.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in warm water (c) sugar left unstirred (d) sugar in icy water
22. 22.True or false: cotton wool is not needed for the dissolving test. (a) True (b) False
23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is what we measure. (a) False (b) True
24. 24.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a comb (c) cold water (d) a clock or timer
25. 25.🧺 Which of these is needed for the dissolving test? (a) a teaspoon (b) cotton wool (c) a balloon (d) honey
26. 26.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
27. 27.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
28. 28.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
29. 29.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we measure it (b) we change it (c) we keep it the same
30. 30.⚖️ 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
31. 31.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a mirror (c) two clear glasses (d) a balloon
32. 32.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
33. 33.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) taste it (c) look for leftover grains (d) poke it with a finger
34. 34.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
35. 35.🔍 Which is the odd one out? (a) sawdust (b) glucose powder (c) sugar (d) baking soda
36. 36.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar left unstirred (d) sugar stirred well
37. 37.🔍 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 became air (d) it spread in the water
38. 38.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a rainbow (c) a crystal (d) a solution
39. 39.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
40. 40.True or false: cotton wool is needed for the dissolving test. (a) True (b) False

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