Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 294 · 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.True or false: sugar left unstirred dissolves faster. (a) False (b) True
2. 2.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) sugar (c) cold water (d) cotton wool
3. 3.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
4. 4.True or false: a clock or timer is not needed for the dissolving test. (a) True (b) False
5. 5.🔍 Which is the odd one out? (a) table salt (b) food colour (c) chalk powder (d) glucose powder
6. 6.🔍 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 became air (d) it spread in the water
7. 7.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
8. 8.🔍 Which is the odd one out? (a) small pebbles (b) sand (c) glucose powder (d) chalk powder
9. 9.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the kind of sugar (b) the water temperature (c) the amount of sugar (d) the stirring
10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we change it (b) we keep it the same (c) we measure it
11. 11.True or false: a magnet is needed for the dissolving test. (a) False (b) True
12. 12.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) powdered sugar (c) the sugar cube (d) both the same
13. 13.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
14. 14.⚖️ 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
15. 15.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a teaspoon (c) cotton wool (d) two clear glasses
16. 16.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a comb (c) sugar (d) a mirror
17. 17.🥄 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
18. 18.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
19. 19.🔍 Which is the odd one out? (a) sand (b) cooking oil (c) table salt (d) chalk powder
20. 20.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) two clear glasses (c) a clock or timer (d) honey
21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) True (b) False
22. 22.⚖️ 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
23. 23.🔍 Which is the odd one out? (a) cooking oil (b) sand (c) baking soda (d) sawdust
24. 24.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it settles at the bottom (c) it floats up (d) it turns blue
25. 25.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a grown-up (c) the youngest child (d) a friend who is running
26. 26.🥄 Which of these dissolves in water? (a) cooking oil (b) sand (c) table salt (d) small pebbles
27. 27.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
28. 28.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
29. 29.🥄 Which of these dissolves in water? (a) sawdust (b) food colour (c) sand (d) chalk powder
30. 30.⚖️ 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) time to dissolve (c) the amount of sugar
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) False (b) True
32. 32.🥄 Which of these does not dissolve in water? (a) baking soda (b) small pebbles (c) food colour (d) glucose powder
33. 33.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
34. 34.True or false: powdered sugar dissolves slower. (a) False (b) True
35. 35.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a solution (c) a crystal (d) a magnet
36. 36.True or false: food colour dissolves in water. (a) True (b) False
37. 37.True or false: sugar in warm water dissolves faster. (a) False (b) True
38. 38.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar stirred well (d) a big sugar cube
39. 39.True or false: warm water is not needed for the dissolving test. (a) True (b) False
40. 40.True or false: a clock or timer is needed for the dissolving test. (a) True (b) False

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