Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 46 · 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.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the water temperature (b) the amount of water (c) the kind of sugar (d) time to dissolve
2. 2.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) sugar (c) cotton wool (d) two clear glasses
3. 3.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) warm water is thicker (c) particles move faster (d) sugar likes the dark
4. 4.🥄 Which of these dissolves faster? (a) sugar in warm water (b) sugar left unstirred (c) sugar in icy water (d) a big sugar cube
5. 5.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we measure it (b) we change it (c) we keep it the same
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 change it (b) we measure it (c) we keep it the same
7. 7.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a balloon (c) a comb (d) warm water
8. 8.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we keep it the same (b) we measure it (c) we change it
9. 9.🔍 Which is the odd one out? (a) sawdust (b) glucose powder (c) sugar (d) food colour
10. 10.🛟 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
11. 11.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) slower (c) faster (d) not at all
12. 12.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) both the same (c) neither of them (d) powdered sugar
13. 13.⚖️ 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) False (b) True
14. 14.True or false: sand does not dissolve in water. (a) True (b) False
15. 15.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) a friend who is running (c) nobody needs to (d) the youngest child
16. 16.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) powdered sugar (d) a big sugar cube
17. 17.📘 What do we call water with sugar dissolved in it? (a) a solution (b) a rainbow (c) a magnet (d) a crystal
18. 18.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
19. 19.🔍 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
20. 20.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
21. 21.True or false: a big sugar cube dissolves faster. (a) True (b) False
22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the water temperature (b) time to dissolve (c) the amount of sugar (d) the kind of sugar
23. 23.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) cold water (c) a mirror (d) a teaspoon
24. 24.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
25. 25.True or false: a balloon is needed for the dissolving test. (a) True (b) False
26. 26.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
27. 27.True or false: glucose powder does not dissolve in water. (a) True (b) False
28. 28.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) the sugar turns to salt (c) all of it dissolves (d) the water turns solid
29. 29.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we keep it the same (b) we measure it (c) we change it
30. 30.True or false: cold water is needed for the dissolving test. (a) True (b) False
31. 31.⚖️ 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
32. 32.True or false: sugar left unstirred dissolves faster. (a) True (b) False
33. 33.🔍 Which is the odd one out? (a) sand (b) sugar (c) sawdust (d) cooking oil
34. 34.🔍 Which is the odd one out? (a) baking soda (b) chalk powder (c) sawdust (d) small pebbles
35. 35.🥄 Which of these dissolves in water? (a) sawdust (b) chalk powder (c) baking soda (d) cooking oil
36. 36.🔍 Which is the odd one out? (a) table salt (b) sand (c) small pebbles (d) cooking oil
37. 37.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar in icy water (d) sugar stirred well
38. 38.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
39. 39.🥄 Which of these does not dissolve in water? (a) table salt (b) small pebbles (c) sugar (d) glucose powder
40. 40.🥄 Which of these does not dissolve in water? (a) baking soda (b) chalk powder (c) sugar (d) glucose powder

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