Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 644 · 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 small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
2. 2.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
3. 3.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) a clock or timer (c) cotton wool (d) a teaspoon
4. 4.🔍 Which is the odd one out? (a) food colour (b) glucose powder (c) sugar (d) cooking oil
5. 5.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it floats up (c) it turns blue (d) it settles at the bottom
6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is what we measure. (a) False (b) True
7. 7.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
8. 8.True or false: baking soda does not dissolve in water. (a) True (b) False
9. 9.🔍 Which is the odd one out? (a) sawdust (b) sugar (c) table salt (d) food colour
10. 10.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
11. 11.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a teaspoon (c) two clear glasses (d) a mirror
12. 12.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
13. 13.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) the sugar cube (c) both the same (d) neither of them
14. 14.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) two clear glasses (c) a magnet (d) honey
15. 15.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
16. 16.⚖️ 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
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we change it (b) we keep it the same (c) we measure it
18. 18.⚖️ 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 measure it (c) we keep it the same
19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) warm water (c) a magnet (d) cold water
20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we keep it the same (b) we change it (c) we measure it
21. 21.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
22. 22.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
23. 23.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
24. 24.🥄 Which of these does not dissolve in water? (a) baking soda (b) sugar (c) cooking oil (d) food colour
25. 25.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a teaspoon (c) sugar (d) a comb
26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the kind of sugar (b) the amount of sugar (c) time to dissolve (d) the water temperature
27. 27.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a friend who is running (c) a grown-up (d) nobody needs to
28. 28.⚖️ 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) the water temperature (d) time to dissolve
29. 29.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) cold water is wet (c) particles move faster (d) sugar likes the dark
30. 30.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it became air (c) it spread in the water (d) it sank as sand
31. 31.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) honey (c) a teaspoon (d) a clock or timer
32. 32.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar in icy water (c) powdered sugar (d) sugar stirred well
33. 33.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) all of it dissolves (c) some stays undissolved (d) the sugar turns to salt
34. 34.🔍 Which is the odd one out? (a) food colour (b) sugar (c) small pebbles (d) table salt
35. 35.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a balloon (c) a clock or timer (d) two clear glasses
36. 36.True or false: a big sugar cube dissolves slower. (a) True (b) False
37. 37.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) sugar (c) a clock or timer (d) a magnet
38. 38.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) look for leftover grains (c) taste it (d) poke it with a finger
39. 39.⚖️ 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 stirring (c) the water temperature
40. 40.🥄 Which of these dissolves in water? (a) cooking oil (b) sand (c) glucose powder (d) chalk powder

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