Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 837 · 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.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a grown-up (c) a friend who is running (d) nobody needs to
2. 2.⚖️ 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
3. 3.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
4. 4.True or false: sugar stirred well dissolves slower. (a) False (b) True
5. 5.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
6. 6.🥄 Which of these dissolves in water? (a) sand (b) sugar (c) chalk powder (d) sawdust
7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is kept the same. (a) False (b) True
8. 8.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a clock or timer (c) honey (d) warm water
9. 9.🔍 Which is the odd one out? (a) baking soda (b) small pebbles (c) sawdust (d) chalk powder
10. 10.🥄 Which of these dissolves faster? (a) sugar in warm water (b) sugar in icy water (c) a big sugar cube (d) sugar left unstirred
11. 11.True or false: a teaspoon is needed for the dissolving test. (a) True (b) False
12. 12.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) two clear glasses (c) sugar (d) a balloon
13. 13.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) powdered sugar (c) neither of them (d) both the same
14. 14.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
15. 15.🥄 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
16. 16.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it became air (c) it spread in the water (d) it vanished for ever
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) False (b) True
18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we measure it (b) we keep it the same (c) we change it
19. 19.True or false: chalk powder does not dissolve in water. (a) True (b) False
20. 20.🥄 Which of these dissolves slower? (a) sugar in icy water (b) sugar stirred well (c) powdered sugar (d) sugar in warm water
21. 21.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
22. 22.🥄 Which of these does not dissolve in water? (a) food colour (b) table salt (c) sugar (d) sand
23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of water (b) the stirring (c) the water temperature (d) time to dissolve
24. 24.True or false: sugar dissolves in water. (a) True (b) False
25. 25.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) poke it with a finger (c) taste it (d) smell it closely
26. 26.True or false: food colour dissolves in water. (a) False (b) True
27. 27.True or false: a magnet is needed for the dissolving test. (a) False (b) True
28. 28.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a magnet (c) a teaspoon (d) sugar
29. 29.True or false: powdered sugar dissolves faster. (a) False (b) True
30. 30.🔍 Which is the odd one out? (a) table salt (b) glucose powder (c) sand (d) baking soda
31. 31.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
32. 32.True or false: chalk powder dissolves in water. (a) True (b) False
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.True or false: sugar left unstirred dissolves slower. (a) True (b) False
35. 35.⚖️ 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 water temperature (c) the amount of water (d) time to dissolve
36. 36.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) cold water (c) warm water (d) cotton wool
37. 37.True or false: baking soda does not dissolve in water. (a) False (b) True
38. 38.🔍 Which is the odd one out? (a) sawdust (b) chalk powder (c) food colour (d) sand
39. 39.True or false: sugar in warm water dissolves slower. (a) True (b) False
40. 40.True or false: sugar is not needed for the dissolving test. (a) False (b) True

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