Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 668 · 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? True or false: the kind of sugar is kept the same. (a) False (b) True
2. 2.🥄 Which of these dissolves faster? (a) sugar in warm water (b) sugar in icy water (c) a big sugar cube (d) sugar left unstirred
3. 3.True or false: sugar is needed for the dissolving test. (a) False (b) True
4. 4.True or false: honey is needed for the dissolving test. (a) False (b) True
5. 5.True or false: sawdust does not dissolve in water. (a) False (b) True
6. 6.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
7. 7.⚖️ 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) False (b) True
8. 8.True or false: sugar left unstirred dissolves faster. (a) True (b) False
9. 9.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
10. 10.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
11. 11.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) sugar (c) honey (d) cold water
12. 12.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the amount of water (b) time to dissolve (c) the amount of sugar (d) the water temperature
13. 13.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a mirror (c) sugar (d) honey
14. 14.⚖️ 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 kind of sugar
15. 15.🔍 Which is the odd one out? (a) sawdust (b) sand (c) table salt (d) small pebbles
16. 16.🛟 How should you check if the sugar has dissolved? (a) taste it (b) poke it with a finger (c) smell it closely (d) look for leftover grains
17. 17.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
18. 18.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) the same (c) faster (d) slower
19. 19.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the sugar turns to salt (b) some stays undissolved (c) all of it dissolves (d) the water turns solid
20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of sugar (b) the water temperature (c) time to dissolve
21. 21.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) sugar (c) a teaspoon (d) a balloon
22. 22.🔍 Which is the odd one out? (a) sawdust (b) small pebbles (c) sand (d) baking soda
23. 23.⚖️ 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
24. 24.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a grown-up (c) a friend who is running (d) the youngest child
25. 25.🔍 Which is the odd one out? (a) table salt (b) food colour (c) sugar (d) sand
26. 26.🔍 Which is the odd one out? (a) table salt (b) baking soda (c) food colour (d) chalk powder
27. 27.True or false: chalk powder dissolves in water. (a) True (b) False
28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we keep it the same (b) we change it (c) we measure it
29. 29.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar left unstirred (c) powdered sugar (d) sugar in warm water
30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we measure it (b) we keep it the same (c) we change it
31. 31.True or false: honey is not needed for the dissolving test. (a) False (b) True
32. 32.True or false: a teaspoon is needed for the dissolving test. (a) False (b) True
33. 33.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) powdered sugar (c) neither of them (d) the sugar cube
34. 34.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) sugar (c) a magnet (d) warm water
35. 35.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
36. 36.🧺 Which of these is needed for the dissolving test? (a) warm water (b) cotton wool (c) a balloon (d) a mirror
37. 37.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar stirred well (c) sugar in icy water (d) sugar left unstirred
38. 38.True or false: a big sugar cube dissolves slower. (a) True (b) False
39. 39.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it spread in the water (c) it vanished for ever (d) it sank as sand
40. 40.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed

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