Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 888 · 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.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
2. 2.🔍 Which is the odd one out? (a) glucose powder (b) food colour (c) table salt (d) cooking oil
3. 3.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) warm water is thicker (c) particles move faster (d) cold water is wet
4. 4.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) a balloon (c) warm water (d) cold water
5. 5.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
6. 6.⚖️ 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
7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the stirring (b) the amount of sugar (c) time to dissolve (d) the water temperature
8. 8.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) True (b) False
9. 9.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar left unstirred (c) sugar in warm water (d) powdered sugar
10. 10.🛟 How should you check if the sugar has dissolved? (a) taste it (b) look for leftover grains (c) smell it closely (d) poke it with a finger
11. 11.True or false: sugar in warm water dissolves faster. (a) True (b) False
12. 12.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
13. 13.🥄 Which of these dissolves in water? (a) chalk powder (b) cooking oil (c) sawdust (d) glucose powder
14. 14.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in warm water (c) sugar in icy water (d) powdered sugar
15. 15.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
16. 16.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) cold water (c) cotton wool (d) a clock or timer
17. 17.⚖️ 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 sugar (c) the amount of water (d) the water temperature
18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) False (b) True
19. 19.🔍 How can you get the salt back from salty water? (a) add more water (b) stir it more (c) keep it in a fridge (d) let the water evaporate
20. 20.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
21. 21.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a magnet (c) honey (d) cold water
22. 22.⚖️ 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) time to dissolve (c) the water temperature
23. 23.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in warm water (c) a big sugar cube (d) powdered sugar
24. 24.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a balloon (c) a teaspoon (d) cold water
25. 25.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is kept the same. (a) True (b) False
27. 27.🧺 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
28. 28.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
29. 29.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
30. 30.🛟 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
31. 31.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a balloon (c) warm water (d) a comb
32. 32.True or false: a mirror is not needed for the dissolving test. (a) True (b) False
33. 33.🥄 Which of these does not dissolve in water? (a) food colour (b) sugar (c) sand (d) baking soda
34. 34.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) the same (c) faster (d) slower
35. 35.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it vanished for ever (c) it sank as sand (d) it spread in the water
36. 36.⚖️ 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 water (c) the water temperature
37. 37.True or false: small pebbles does not dissolve in water. (a) False (b) True
38. 38.🥄 Which of these does not dissolve in water? (a) glucose powder (b) baking soda (c) food colour (d) cooking oil
39. 39.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
40. 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we keep it the same (b) we measure it (c) we change it

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