Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 109 · 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 kept the same? (a) the water temperature (b) the kind of sugar (c) time to dissolve
2. 2.🔍 Which is the odd one out? (a) table salt (b) food colour (c) glucose powder (d) chalk powder
3. 3.True or false: sawdust dissolves in water. (a) True (b) False
4. 4.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a comb (c) a teaspoon (d) cold water
5. 5.⚖️ 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
6. 6.⚖️ 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) time to dissolve (c) the amount of sugar (d) the water temperature
7. 7.🔍 How can you get the salt back from salty water? (a) let the water evaporate (b) add more water (c) stir it more (d) keep it in a fridge
8. 8.True or false: a balloon is needed for the dissolving test. (a) False (b) True
9. 9.🥄 Which of these dissolves in water? (a) sand (b) sawdust (c) sugar (d) chalk powder
10. 10.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) honey (c) cotton wool (d) cold water
11. 11.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
12. 12.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
13. 13.True or false: powdered sugar dissolves slower. (a) False (b) True
14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is what we measure. (a) True (b) False
15. 15.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
16. 16.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it vanished for ever (c) it became air (d) it sank as sand
17. 17.🥄 Which of these dissolves slower? (a) sugar left unstirred (b) sugar in warm water (c) powdered sugar (d) sugar stirred well
18. 18.🛟 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
19. 19.True or false: warm water is not needed for the dissolving test. (a) False (b) True
20. 20.⚖️ 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
21. 21.🔍 Which is the odd one out? (a) glucose powder (b) baking soda (c) small pebbles (d) sugar
22. 22.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) particles move faster (c) cold water is wet (d) warm water is thicker
23. 23.🥄 Which of these does not dissolve in water? (a) table salt (b) sand (c) glucose powder (d) baking soda
24. 24.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) cotton wool (c) cold water (d) a clock or timer
25. 25.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is what we measure. (a) False (b) True
26. 26.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
27. 27.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
28. 28.🥄 Which of these does not dissolve in water? (a) food colour (b) sugar (c) glucose powder (d) chalk powder
29. 29.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) the sugar cube (c) neither of them (d) powdered sugar
30. 30.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar in icy water (d) sugar stirred well
31. 31.⚖️ 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
32. 32.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) sugar (c) warm water (d) cotton wool
33. 33.True or false: powdered sugar dissolves faster. (a) False (b) True
34. 34.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
35. 35.True or false: a balloon is not needed for the dissolving test. (a) True (b) False
36. 36.⚖️ 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 measure it (c) we keep it the same
37. 37.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a crystal (c) a rainbow (d) a solution
38. 38.True or false: sugar in icy water dissolves slower. (a) True (b) False
39. 39.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) some stays undissolved (c) all of it dissolves (d) the sugar turns to salt
40. 40.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster

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