Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 602 · 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 slower? (a) powdered sugar (b) sugar left unstirred (c) sugar in warm water (d) sugar stirred well
2. 2.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is what we measure. (a) False (b) True
4. 4.True or false: table salt does not dissolve in water. (a) True (b) False
5. 5.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) honey (c) two clear glasses (d) sugar
6. 6.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
7. 7.🥄 Which of these dissolves in water? (a) chalk powder (b) food colour (c) cooking oil (d) sawdust
8. 8.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it became air (c) it spread in the water (d) it sank as sand
9. 9.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) all of it dissolves (c) the water turns solid (d) the sugar turns to salt
10. 10.🛟 How should you check if the sugar has dissolved? (a) taste it (b) poke it with a finger (c) look for leftover grains (d) smell it closely
11. 11.True or false: a balloon is needed for the dissolving test. (a) False (b) True
12. 12.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of sugar (b) the stirring (c) time to dissolve (d) the amount of water
13. 13.🔍 Which is the odd one out? (a) cooking oil (b) sand (c) sawdust (d) sugar
14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we keep it the same (b) we measure it (c) we change it
15. 15.True or false: sugar is not needed for the dissolving test. (a) True (b) False
16. 16.🔍 How can you get the salt back from salty water? (a) let the water evaporate (b) keep it in a fridge (c) stir it more (d) add more water
17. 17.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it settles at the bottom (c) it turns blue (d) it floats up
18. 18.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
19. 19.🔮 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
20. 20.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) sugar (c) warm water (d) honey
21. 21.⚖️ 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
22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) False (b) True
23. 23.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) warm water is thicker (c) cold water is wet (d) particles move faster
24. 24.True or false: glucose powder does not dissolve in water. (a) True (b) False
25. 25.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
26. 26.🥄 Which of these does not dissolve in water? (a) sand (b) table salt (c) glucose powder (d) baking soda
27. 27.🧺 Which of these is not needed for the dissolving test? (a) a magnet (b) a teaspoon (c) a clock or timer (d) sugar
28. 28.🥄 Which of these dissolves in water? (a) cooking oil (b) sand (c) table salt (d) chalk powder
29. 29.🥄 Which of these does not dissolve in water? (a) small pebbles (b) food colour (c) glucose powder (d) sugar
30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is the one thing we change. (a) True (b) False
31. 31.True or false: sawdust does not dissolve in water. (a) True (b) False
32. 32.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a teaspoon (c) a mirror (d) a comb
33. 33.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a friend who is running (c) a grown-up (d) the youngest child
34. 34.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) sugar (c) a comb (d) a magnet
35. 35.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
36. 36.🥄 Which of these dissolves in water? (a) sawdust (b) glucose powder (c) cooking oil (d) sand
37. 37.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) False (b) True
39. 39.True or false: powdered sugar dissolves slower. (a) True (b) False
40. 40.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed

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