Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 232 · 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.🥄 Which of these dissolves in water? (a) chalk powder (b) glucose powder (c) small pebbles (d) sand
2. 2.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
3. 3.⚖️ 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 kind of sugar (c) the water temperature
4. 4.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
5. 5.True or false: sugar left unstirred dissolves slower. (a) False (b) True
6. 6.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) a balloon (c) sugar (d) cotton wool
7. 7.⚖️ 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 amount of water (c) the kind of sugar (d) the stirring
8. 8.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is kept the same. (a) True (b) False
9. 9.True or false: baking soda does not dissolve in water. (a) False (b) True
10. 10.True or false: cooking oil does not dissolve in water. (a) False (b) True
11. 11.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) a friend who is running (c) nobody needs to (d) the youngest child
12. 12.⚖️ 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) False (b) True
13. 13.True or false: sand does not dissolve in water. (a) False (b) True
14. 14.🔮 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) the water turns solid (c) all of it dissolves (d) some stays undissolved
15. 15.⚖️ 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
16. 16.True or false: sugar does not dissolve in water. (a) True (b) False
17. 17.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a comb (c) a teaspoon (d) a clock or timer
18. 18.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar stirred well (d) sugar in icy water
19. 19.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) neither of them (c) powdered sugar (d) both the same
20. 20.🔍 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 sank as sand (d) it vanished for ever
21. 21.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) taste it (c) look for leftover grains (d) poke it with a finger
22. 22.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
23. 23.🥄 Which of these dissolves in water? (a) chalk powder (b) table salt (c) sand (d) cooking oil
24. 24.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) cotton wool (c) cold water (d) two clear glasses
25. 25.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) a big sugar cube (d) sugar stirred well
26. 26.🔍 Which is the odd one out? (a) cooking oil (b) baking soda (c) glucose powder (d) sugar
27. 27.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
28. 28.⚖️ 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) True (b) False
29. 29.True or false: powdered sugar dissolves slower. (a) False (b) True
30. 30.⚖️ 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
31. 31.🧺 Which of these is not needed for the dissolving test? (a) cotton wool (b) warm water (c) cold water (d) two clear glasses
32. 32.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
33. 33.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
34. 34.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) warm water (c) a teaspoon (d) two clear glasses
35. 35.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) a balloon (c) two clear glasses (d) a clock or timer
36. 36.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
37. 37.True or false: a mirror is needed for the dissolving test. (a) False (b) True
38. 38.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) sugar (c) warm water (d) two clear glasses
39. 39.True or false: a comb is needed for the dissolving test. (a) True (b) False
40. 40.True or false: a magnet is needed for the dissolving test. (a) True (b) False

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