Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 754 · 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? Which of these is the one thing we change? (a) the water temperature (b) the stirring (c) time to dissolve (d) the amount of sugar
2. 2.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
3. 3.⚖️ 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
4. 4.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
5. 5.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we keep it the same (b) we change it (c) we measure it
6. 6.🔍 Which is the odd one out? (a) food colour (b) sand (c) sugar (d) glucose powder
7. 7.🥄 Which of these dissolves in water? (a) sugar (b) sawdust (c) chalk powder (d) sand
8. 8.⚖️ 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 kind of sugar (c) the amount of water (d) time to dissolve
9. 9.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) poke it with a finger (c) taste it (d) smell it closely
10. 10.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) both the same (c) the sugar cube (d) neither of them
11. 11.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar stirred well (c) sugar in icy water (d) sugar left unstirred
12. 12.⚖️ 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
13. 13.⚖️ 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 amount of sugar
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 change it (b) we keep it the same (c) we measure it
15. 15.🥄 Which of these dissolves in water? (a) sawdust (b) chalk powder (c) baking soda (d) small pebbles
16. 16.🔍 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
17. 17.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
18. 18.🥄 Which of these dissolves faster? (a) sugar in warm water (b) sugar left unstirred (c) a big sugar cube (d) sugar in icy water
19. 19.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we measure it (b) we change it (c) we keep it the same
20. 20.True or false: a mirror is needed for the dissolving test. (a) False (b) True
21. 21.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) cotton wool (c) warm water (d) sugar
22. 22.True or false: table salt does not dissolve in water. (a) True (b) False
23. 23.True or false: a big sugar cube dissolves slower. (a) True (b) False
24. 24.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
25. 25.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) a grown-up (c) the youngest child (d) nobody needs to
26. 26.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a balloon (c) two clear glasses (d) cold water
27. 27.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar stirred well (d) a big sugar cube
28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is what we measure. (a) True (b) False
29. 29.True or false: table salt dissolves in water. (a) False (b) True
30. 30.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
31. 31.🔍 Which is the odd one out? (a) sawdust (b) cooking oil (c) small pebbles (d) baking soda
32. 32.⚖️ 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
33. 33.🔍 Which is the odd one out? (a) food colour (b) small pebbles (c) baking soda (d) table salt
34. 34.True or false: sugar in icy water dissolves slower. (a) True (b) False
35. 35.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
36. 36.True or false: warm water is not needed for the dissolving test. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) table salt (b) glucose powder (c) baking soda (d) sawdust
38. 38.🥄 Which of these does not dissolve in water? (a) sugar (b) sand (c) glucose powder (d) food colour
39. 39.🥄 Which of these does not dissolve in water? (a) sugar (b) baking soda (c) sawdust (d) table salt
40. 40.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) warm water (c) two clear glasses (d) a clock or timer

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