Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 696 · 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.True or false: sugar in warm water dissolves slower. (a) True (b) False
2. 2.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a magnet (c) a teaspoon (d) a clock or timer
3. 3.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a magnet (c) a crystal (d) a solution
4. 4.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the sugar turns to salt (b) some stays undissolved (c) the water turns solid (d) all of it dissolves
5. 5.True or false: cold water is needed for the dissolving test. (a) False (b) True
6. 6.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
7. 7.🥄 Which of these does not dissolve in water? (a) food colour (b) sugar (c) glucose powder (d) cooking oil
8. 8.True or false: sand does not dissolve in water. (a) False (b) True
9. 9.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) sugar stirred well (d) a big sugar cube
10. 10.⚖️ 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) the amount of water (d) the water temperature
11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is kept the same. (a) True (b) False
12. 12.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) powdered sugar (c) the sugar cube (d) both the same
13. 13.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
14. 14.🔍 Which is the odd one out? (a) food colour (b) glucose powder (c) table salt (d) sawdust
15. 15.⚖️ 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
16. 16.True or false: sugar dissolves in water. (a) True (b) False
17. 17.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) cold water (c) two clear glasses (d) a comb
18. 18.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in warm water (c) a big sugar cube (d) sugar in icy water
19. 19.⚖️ 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
20. 20.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a clock or timer (c) two clear glasses (d) cotton wool
21. 21.🧺 Which of these is needed for the dissolving test? (a) warm water (b) a mirror (c) a balloon (d) a comb
22. 22.🔍 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
23. 23.🔍 Which is the odd one out? (a) table salt (b) glucose powder (c) sand (d) baking soda
24. 24.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) not at all (c) faster (d) slower
25. 25.🔍 Which is the odd one out? (a) chalk powder (b) sawdust (c) food colour (d) cooking oil
26. 26.True or false: a clock or timer is not needed for the dissolving test. (a) False (b) True
27. 27.🔍 Which is the odd one out? (a) small pebbles (b) sand (c) sugar (d) cooking oil
28. 28.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) a big sugar cube (d) powdered sugar
29. 29.True or false: powdered sugar dissolves faster. (a) False (b) True
30. 30.True or false: food colour does not dissolve in water. (a) True (b) False
31. 31.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it sank as sand (c) it vanished for ever (d) it spread in the water
32. 32.🛟 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
33. 33.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) the youngest child (c) a friend who is running (d) a grown-up
34. 34.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
35. 35.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
36. 36.⚖️ 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
37. 37.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
38. 38.⚖️ 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
39. 39.🔍 Which is the odd one out? (a) small pebbles (b) glucose powder (c) chalk powder (d) cooking oil
40. 40.🥄 Which of these does not dissolve in water? (a) sand (b) food colour (c) baking soda (d) sugar

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