Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 786 · 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? What do we do with “time to dissolve”? (a) we keep it the same (b) we change it (c) we measure it
2. 2.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
3. 3.True or false: small pebbles dissolves in water. (a) False (b) True
4. 4.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
5. 5.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) nobody needs to (c) a grown-up (d) the youngest child
6. 6.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) the same (c) slower (d) faster
7. 7.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a magnet (c) a solution (d) a crystal
8. 8.🔍 Which is the odd one out? (a) sand (b) chalk powder (c) small pebbles (d) sugar
9. 9.True or false: a teaspoon is needed for the dissolving test. (a) False (b) True
10. 10.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
11. 11.True or false: two clear glasses is needed for the dissolving test. (a) False (b) True
12. 12.True or false: table salt dissolves in water. (a) True (b) False
13. 13.⚖️ 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
14. 14.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in warm water (c) powdered sugar (d) sugar left unstirred
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is what we measure. (a) False (b) True
16. 16.🥄 Which of these does not dissolve in water? (a) sawdust (b) sugar (c) baking soda (d) food colour
17. 17.True or false: warm water is not needed for the dissolving test. (a) False (b) True
18. 18.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it turns blue (c) it settles at the bottom (d) it dissolves
19. 19.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) powdered sugar (c) neither of them (d) both the same
20. 20.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) warm water (c) cotton wool (d) two clear glasses
21. 21.🥄 Which of these does not dissolve in water? (a) sand (b) sugar (c) glucose powder (d) baking soda
22. 22.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) sugar stirred well (d) a big sugar cube
23. 23.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
24. 24.🔍 Which is the odd one out? (a) chalk powder (b) glucose powder (c) table salt (d) sugar
25. 25.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar in warm water (d) sugar in icy water
26. 26.True or false: sugar does not dissolve in water. (a) True (b) False
27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of water (b) the water temperature (c) time to dissolve
28. 28.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) sugar (c) cold water (d) honey
29. 29.🔍 How can you get the salt back from salty water? (a) stir it more (b) let the water evaporate (c) add more water (d) keep it in a fridge
30. 30.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
31. 31.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the water temperature (b) the amount of sugar (c) time to dissolve (d) the stirring
32. 32.True or false: two clear glasses is not needed for the dissolving test. (a) False (b) True
33. 33.True or false: sugar stirred well dissolves faster. (a) False (b) True
34. 34.🥄 Which of these dissolves in water? (a) cooking oil (b) chalk powder (c) baking soda (d) sand
35. 35.True or false: cold water is not needed for the dissolving test. (a) False (b) True
36. 36.🔍 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
37. 37.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) sugar (c) a comb (d) cotton wool
38. 38.🧺 Which of these is needed for the dissolving test? (a) honey (b) a magnet (c) a comb (d) cold water
39. 39.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
40. 40.True or false: sugar dissolves in water. (a) False (b) True

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