Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 867 · 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.🔍 Which is the odd one out? (a) food colour (b) small pebbles (c) chalk powder (d) cooking oil
2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) False (b) True
3. 3.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
4. 4.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
5. 5.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) warm water is thicker (c) cold water is wet (d) particles move faster
6. 6.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
7. 7.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) look for leftover grains (c) taste it (d) smell it closely
8. 8.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) the sugar turns to salt (c) the water turns solid (d) some stays undissolved
9. 9.🧺 Which of these is needed for the dissolving test? (a) a comb (b) cold water (c) a balloon (d) a mirror
10. 10.True or false: baking soda does not dissolve in water. (a) True (b) False
11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) True (b) False
12. 12.🔮 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
13. 13.⚖️ 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
14. 14.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we change it (b) we keep it the same (c) we measure it
16. 16.True or false: a clock or timer is needed for the dissolving test. (a) True (b) False
17. 17.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
18. 18.⚖️ 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
19. 19.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) not at all (c) slower (d) faster
20. 20.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) warm water (c) sugar (d) a mirror
21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is the one thing we change. (a) True (b) False
22. 22.True or false: sawdust dissolves in water. (a) True (b) False
23. 23.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
24. 24.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
25. 25.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we change it (b) we keep it the same (c) we measure it
26. 26.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
27. 27.🔍 Which is the odd one out? (a) chalk powder (b) baking soda (c) cooking oil (d) sawdust
28. 28.🥄 Which of these does not dissolve in water? (a) table salt (b) sawdust (c) baking soda (d) food colour
29. 29.True or false: sugar in warm water dissolves slower. (a) True (b) False
30. 30.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) sugar (c) a mirror (d) honey
31. 31.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is the one thing we change. (a) False (b) True
32. 32.True or false: a balloon is not needed for the dissolving test. (a) False (b) True
33. 33.True or false: a comb is not needed for the dissolving test. (a) False (b) True
34. 34.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the water temperature (b) the amount of sugar (c) time to dissolve
35. 35.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
36. 36.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
37. 37.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in warm water (c) a big sugar cube (d) sugar in icy water
38. 38.🥄 Which of these does not dissolve in water? (a) sugar (b) table salt (c) food colour (d) cooking oil
39. 39.⚖️ 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
40. 40.⚖️ 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 amount of water

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