Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 378 · 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 of these does not dissolve in water? (a) sugar (b) sawdust (c) food colour (d) glucose powder
2. 2.True or false: sugar in warm water dissolves faster. (a) True (b) False
3. 3.🔍 How can you get the salt back from salty water? (a) stir it more (b) let the water evaporate (c) keep it in a fridge (d) add more water
4. 4.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar in warm water (d) sugar in icy water
5. 5.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar left unstirred (c) sugar in warm water (d) powdered sugar
6. 6.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it sank as sand (c) it spread in the water (d) it became air
7. 7.🔍 Which is the odd one out? (a) cooking oil (b) glucose powder (c) sand (d) chalk powder
8. 8.True or false: a balloon is not needed for the dissolving test. (a) True (b) False
9. 9.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
10. 10.⚖️ 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 keep it the same (c) we change it
11. 11.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) nobody needs to (c) the youngest child (d) a grown-up
12. 12.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a teaspoon (c) a mirror (d) warm water
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 change it (b) we measure it (c) we keep it the same
14. 14.🛟 How should you check if the sugar has dissolved? (a) taste it (b) look for leftover grains (c) poke it with a finger (d) smell it closely
15. 15.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
16. 16.🥄 Which of these dissolves slower? (a) sugar stirred well (b) powdered sugar (c) sugar in warm water (d) sugar in icy water
17. 17.True or false: sugar in icy water dissolves faster. (a) True (b) False
18. 18.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) powdered sugar (c) neither of them (d) the sugar cube
19. 19.🔍 Which is the odd one out? (a) baking soda (b) sawdust (c) small pebbles (d) chalk powder
20. 20.📘 What do we call water with sugar dissolved in it? (a) a solution (b) a rainbow (c) a magnet (d) a crystal
21. 21.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) two clear glasses (c) a teaspoon (d) a balloon
22. 22.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
23. 23.⚖️ 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 water temperature (c) the amount of water (d) the kind of sugar
24. 24.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
25. 25.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we change it (b) we measure it (c) we keep it the same
26. 26.🥄 Which of these does not dissolve in water? (a) table salt (b) glucose powder (c) food colour (d) cooking oil
27. 27.⚖️ 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
28. 28.True or false: food colour does not dissolve in water. (a) False (b) True
29. 29.🥄 Which of these does not dissolve in water? (a) table salt (b) baking soda (c) chalk powder (d) food colour
30. 30.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) sugar stirred well (d) a big sugar cube
31. 31.True or false: cold water is needed for the dissolving test. (a) False (b) True
32. 32.True or false: chalk powder does not dissolve in water. (a) False (b) True
33. 33.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
34. 34.True or false: cooking oil does not dissolve in water. (a) False (b) True
35. 35.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
36. 36.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) two clear glasses (c) a comb (d) a magnet
37. 37.True or false: sugar is needed for the dissolving test. (a) True (b) False
38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we keep it the same (b) we change it (c) we measure it
39. 39.🧺 Which of these is needed for the dissolving test? (a) honey (b) a clock or timer (c) a balloon (d) a magnet
40. 40.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) warm water (c) two clear glasses (d) cotton wool

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