Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 327 · 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.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) powdered sugar (c) both the same (d) the sugar cube
2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is the one thing we change. (a) True (b) False
3. 3.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
4. 4.⚖️ 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
5. 5.True or false: small pebbles dissolves in water. (a) False (b) True
6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) False (b) True
7. 7.🔍 Which is the odd one out? (a) baking soda (b) small pebbles (c) glucose powder (d) food colour
8. 8.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in warm water (c) a big sugar cube (d) powdered sugar
9. 9.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we measure it (c) we keep it the same
10. 10.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar in icy water (d) sugar in warm water
11. 11.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) a grown-up (c) nobody needs to (d) the youngest child
12. 12.🥄 Which of these dissolves in water? (a) table salt (b) small pebbles (c) sand (d) sawdust
13. 13.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
14. 14.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar in icy water (d) powdered sugar
15. 15.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) slower (c) the same (d) not at all
16. 16.🔮 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
17. 17.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) honey (c) warm water (d) cold water
18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) time to dissolve (b) the amount of water (c) the water temperature (d) the stirring
19. 19.⚖️ 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 amount of sugar (c) the water temperature
20. 20.True or false: sawdust dissolves in water. (a) False (b) True
21. 21.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) smell it closely (c) taste it (d) look for leftover grains
22. 22.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
23. 23.True or false: small pebbles does not dissolve in water. (a) False (b) True
24. 24.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a comb (c) a balloon (d) cold water
25. 25.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) cold water (c) a balloon (d) a clock or timer
26. 26.True or false: food colour dissolves in water. (a) False (b) True
27. 27.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
28. 28.🔍 Which is the odd one out? (a) glucose powder (b) sand (c) table salt (d) food colour
29. 29.🧺 Which of these is needed for the dissolving test? (a) a comb (b) warm water (c) honey (d) a magnet
30. 30.True or false: cotton wool is needed for the dissolving test. (a) True (b) False
31. 31.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is the one thing we change. (a) True (b) False
32. 32.🥄 Which of these dissolves in water? (a) small pebbles (b) cooking oil (c) sand (d) baking soda
33. 33.🔍 Which is the odd one out? (a) sugar (b) sand (c) sawdust (d) small pebbles
34. 34.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) sugar (c) cotton wool (d) a mirror
35. 35.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) a comb (c) two clear glasses (d) a clock or timer
36. 36.⚖️ 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
37. 37.🔍 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 spread in the water (d) it became air
38. 38.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) two clear glasses (c) a mirror (d) a teaspoon
39. 39.🔍 Which is the odd one out? (a) glucose powder (b) sawdust (c) table salt (d) baking soda
40. 40.🥄 Which of these dissolves in water? (a) food colour (b) cooking oil (c) small pebbles (d) chalk powder

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