Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 643 · 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.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) cold water is wet (c) warm water is thicker (d) particles move faster
2. 2.🔍 Which is the odd one out? (a) baking soda (b) food colour (c) chalk powder (d) table salt
3. 3.🥄 Which of these does not dissolve in water? (a) glucose powder (b) chalk powder (c) table salt (d) baking soda
4. 4.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it became air (c) it vanished for ever (d) it spread in the water
5. 5.🔍 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
6. 6.⚖️ 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) the kind of sugar (c) time to dissolve (d) the water temperature
7. 7.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) cotton wool (c) a clock or timer (d) sugar
8. 8.⚖️ 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
9. 9.True or false: powdered sugar dissolves faster. (a) True (b) False
10. 10.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
11. 11.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a crystal (c) a solution (d) a rainbow
12. 12.🛟 How should you check if the sugar has dissolved? (a) taste it (b) smell it closely (c) poke it with a finger (d) look for leftover grains
13. 13.True or false: glucose powder dissolves in water. (a) True (b) False
14. 14.🥄 Which of these dissolves in water? (a) sawdust (b) cooking oil (c) food colour (d) small pebbles
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is the one thing we change. (a) False (b) True
16. 16.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
17. 17.⚖️ 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 keep it the same (c) we measure it
18. 18.True or false: sugar left unstirred dissolves faster. (a) True (b) False
19. 19.🥄 Which of these dissolves in water? (a) sawdust (b) table salt (c) cooking oil (d) small pebbles
20. 20.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
21. 21.⚖️ 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
22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we change it (b) we keep it the same (c) we measure it
23. 23.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) a clock or timer (c) a mirror (d) warm water
24. 24.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a mirror (b) a teaspoon (c) sugar (d) warm water
25. 25.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
26. 26.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a teaspoon (c) honey (d) a mirror
27. 27.🔮 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
28. 28.⚖️ 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) time to dissolve (c) the stirring
29. 29.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
30. 30.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
31. 31.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
32. 32.🥄 Which of these dissolves in water? (a) cooking oil (b) small pebbles (c) sand (d) sugar
33. 33.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) honey (c) warm water (d) a teaspoon
34. 34.🔍 Which is the odd one out? (a) sawdust (b) glucose powder (c) sand (d) cooking oil
35. 35.⚖️ 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) the amount of water (c) the kind of sugar (d) time to dissolve
36. 36.True or false: sugar stirred well dissolves slower. (a) True (b) False
37. 37.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) cold water (c) a balloon (d) sugar
38. 38.🥄 Which of these dissolves faster? (a) sugar stirred well (b) sugar in icy water (c) sugar left unstirred (d) a big sugar cube
39. 39.True or false: sugar stirred well dissolves faster. (a) True (b) False
40. 40.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water

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