Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 279 · 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.🛟 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
2. 2.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
3. 3.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it settles at the bottom (c) it dissolves (d) it turns blue
4. 4.True or false: baking soda does not dissolve in water. (a) True (b) False
5. 5.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
6. 6.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
7. 7.🥄 Which of these does not dissolve in water? (a) food colour (b) glucose powder (c) sugar (d) cooking oil
8. 8.⚖️ 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 keep it the same (c) we measure it
9. 9.True or false: sugar dissolves in water. (a) False (b) True
10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the amount of sugar (b) time to dissolve (c) the water temperature (d) the stirring
11. 11.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
12. 12.🔍 Which is the odd one out? (a) glucose powder (b) baking soda (c) chalk powder (d) food colour
13. 13.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) nobody needs to (c) a friend who is running (d) a grown-up
14. 14.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) honey (c) a teaspoon (d) two clear glasses
15. 15.⚖️ 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
16. 16.🔍 Which is the odd one out? (a) glucose powder (b) chalk powder (c) small pebbles (d) sand
17. 17.True or false: sugar stirred well dissolves slower. (a) True (b) False
18. 18.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
19. 19.True or false: sugar in icy water dissolves faster. (a) True (b) False
20. 20.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar in warm water (d) sugar in icy water
21. 21.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) cotton wool (c) warm water (d) two clear glasses
22. 22.⚖️ 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 measure it (c) we keep it the same
23. 23.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a teaspoon (c) a magnet (d) sugar
24. 24.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) the sugar cube (c) powdered sugar (d) both the same
25. 25.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a mirror (c) two clear glasses (d) cold water
26. 26.⚖️ 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) False (b) True
27. 27.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) sugar likes the dark (c) cold water is wet (d) warm water is thicker
28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) time to dissolve (b) the kind of sugar (c) the amount of water (d) the amount of sugar
29. 29.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) not at all (c) the same (d) faster
30. 30.True or false: sugar left unstirred dissolves slower. (a) False (b) True
31. 31.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
32. 32.True or false: a big sugar cube dissolves faster. (a) False (b) True
33. 33.True or false: sugar does not dissolve in water. (a) False (b) True
34. 34.🧺 Which of these is needed for the dissolving test? (a) two clear glasses (b) a balloon (c) a comb (d) cotton wool
35. 35.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it vanished for ever (c) it became air (d) it spread in the water
36. 36.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we measure it (b) we change it (c) we keep it the same
37. 37.True or false: sugar in warm water dissolves slower. (a) False (b) True
38. 38.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) warm water (c) a mirror (d) sugar
39. 39.🥄 Which of these dissolves slower? (a) a big sugar cube (b) sugar in warm water (c) powdered sugar (d) sugar stirred well
40. 40.🥄 Which of these does not dissolve in water? (a) sand (b) sugar (c) table salt (d) food colour

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