Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 312 · 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.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) particles move faster (c) warm water is thicker (d) cold water is wet
2. 2.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
3. 3.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) sugar in icy water (d) powdered sugar
4. 4.🥄 Which of these does not dissolve in water? (a) sugar (b) glucose powder (c) table salt (d) sawdust
5. 5.⚖️ 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
6. 6.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
7. 7.🛟 How should you check if the sugar has dissolved? (a) taste it (b) poke it with a finger (c) look for leftover grains (d) smell it closely
8. 8.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) two clear glasses (c) a balloon (d) a clock or timer
9. 9.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
10. 10.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it floats up (c) it settles at the bottom (d) it turns blue
11. 11.🔮 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) the water turns solid (d) all of it dissolves
12. 12.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
13. 13.🥄 Which of these does not dissolve in water? (a) chalk powder (b) baking soda (c) table salt (d) sugar
14. 14.True or false: table salt dissolves in water. (a) False (b) True
15. 15.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) two clear glasses (c) a comb (d) a teaspoon
16. 16.True or false: sugar dissolves in water. (a) True (b) False
17. 17.🧺 Which of these is needed for the dissolving test? (a) honey (b) a balloon (c) a mirror (d) cold water
18. 18.True or false: sugar left unstirred dissolves slower. (a) False (b) True
19. 19.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
20. 20.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
21. 21.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) not at all (d) faster
22. 22.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
23. 23.🥄 Which of these dissolves slower? (a) a big sugar cube (b) powdered sugar (c) sugar stirred well (d) sugar in warm water
24. 24.🔍 Which is the odd one out? (a) baking soda (b) glucose powder (c) food colour (d) cooking oil
25. 25.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
26. 26.⚖️ 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) time to dissolve (c) the water temperature
27. 27.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
28. 28.🥄 Which of these dissolves faster? (a) sugar in icy water (b) powdered sugar (c) sugar left unstirred (d) a big sugar cube
29. 29.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cotton wool (b) sugar (c) a teaspoon (d) warm water
30. 30.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar in warm water (d) sugar left unstirred
31. 31.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a mirror (c) sugar (d) warm water
32. 32.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) sugar stirred well (d) a big sugar cube
33. 33.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it became air (c) it vanished for ever (d) it sank as sand
34. 34.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a friend who is running (c) the youngest child (d) a grown-up
35. 35.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) warm water (c) a magnet (d) two clear glasses
36. 36.⚖️ 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 change it (c) we keep it the same
37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the kind of sugar (b) the water temperature (c) time to dissolve
38. 38.True or false: warm water is not needed for the dissolving test. (a) True (b) False
39. 39.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
40. 40.⚖️ 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

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