Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 75 · 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 sugar left unstirred dissolve faster or slower? (a) slower (b) faster
2. 2.True or false: sugar in icy water dissolves slower. (a) False (b) True
3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is the one thing we change. (a) True (b) False
4. 4.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it settles at the bottom (c) it floats up (d) it dissolves
5. 5.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we keep it the same (b) we measure it (c) we change it
7. 7.🧺 Which of these is needed for the dissolving test? (a) honey (b) a mirror (c) a clock or timer (d) a comb
8. 8.True or false: powdered sugar dissolves slower. (a) True (b) False
9. 9.True or false: a big sugar cube dissolves faster. (a) True (b) False
10. 10.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
11. 11.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar stirred well (c) a big sugar cube (d) sugar left unstirred
12. 12.⚖️ 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
13. 13.⚖️ 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 measure it (c) we change it
14. 14.True or false: baking soda dissolves in water. (a) True (b) False
15. 15.True or false: sugar in icy water dissolves faster. (a) True (b) False
16. 16.🧺 Which of these is needed for the dissolving test? (a) a comb (b) two clear glasses (c) cotton wool (d) a balloon
17. 17.True or false: a mirror is not needed for the dissolving test. (a) False (b) True
18. 18.True or false: food colour dissolves in water. (a) True (b) False
19. 19.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
20. 20.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) honey (c) sugar (d) a comb
21. 21.True or false: a comb is needed for the dissolving test. (a) True (b) False
22. 22.🔍 Which is the odd one out? (a) chalk powder (b) cooking oil (c) small pebbles (d) glucose powder
23. 23.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) taste it (c) poke it with a finger (d) look for leftover grains
24. 24.🔍 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
25. 25.⚖️ 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
26. 26.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) sugar (c) a balloon (d) two clear glasses
27. 27.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) slower (c) faster (d) the same
28. 28.True or false: sugar does not dissolve in water. (a) True (b) False
29. 29.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
30. 30.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar left unstirred (c) powdered sugar (d) sugar in warm water
31. 31.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) a friend who is running (c) the youngest child (d) nobody needs to
32. 32.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a clock or timer (c) two clear glasses (d) honey
33. 33.⚖️ 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 water (b) the kind of sugar (c) the water temperature (d) the amount of sugar
34. 34.True or false: sugar stirred well dissolves faster. (a) True (b) False
35. 35.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
36. 36.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a magnet (c) warm water (d) honey
37. 37.⚖️ 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
38. 38.⚖️ 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 measure it (c) we change it
39. 39.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
40. 40.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) sugar in warm water (d) a big sugar cube

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