Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 499 · 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.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
2. 2.True or false: table salt dissolves in water. (a) False (b) True
3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the stirring (b) the amount of water (c) the kind of sugar (d) the water temperature
4. 4.🧺 Which of these is needed for the dissolving test? (a) two clear glasses (b) cotton wool (c) a comb (d) a magnet
5. 5.🔍 Which is the odd one out? (a) table salt (b) glucose powder (c) baking soda (d) chalk powder
6. 6.🔮 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) the sugar turns to salt (d) all of it dissolves
7. 7.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
8. 8.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) powdered sugar (c) neither of them (d) both the same
9. 9.True or false: a big sugar cube dissolves faster. (a) True (b) False
10. 10.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
11. 11.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
12. 12.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
13. 13.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we measure it (b) we keep it the same (c) we change it
15. 15.🥄 Which of these does not dissolve in water? (a) sand (b) food colour (c) table salt (d) sugar
16. 16.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
17. 17.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
18. 18.True or false: baking soda does not dissolve in water. (a) True (b) False
19. 19.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) False (b) True
20. 20.🔍 Which is the odd one out? (a) sawdust (b) cooking oil (c) food colour (d) chalk powder
21. 21.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) nobody needs to (c) a grown-up (d) the youngest child
22. 22.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a teaspoon (c) a clock or timer (d) a balloon
23. 23.🥄 Which of these does not dissolve in water? (a) baking soda (b) glucose powder (c) table salt (d) small pebbles
24. 24.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) poke it with a finger (c) taste it (d) look for leftover grains
25. 25.📘 What do we call water with sugar dissolved in it? (a) a solution (b) a magnet (c) a crystal (d) a rainbow
26. 26.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) honey (c) cotton wool (d) cold water
27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) True (b) False
28. 28.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it settles at the bottom (c) it dissolves (d) it turns blue
29. 29.⚖️ 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
30. 30.🔍 Which is the odd one out? (a) table salt (b) sugar (c) food colour (d) small pebbles
31. 31.True or false: food colour dissolves in water. (a) True (b) False
32. 32.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
33. 33.🔍 Which is the odd one out? (a) small pebbles (b) table salt (c) chalk powder (d) cooking oil
34. 34.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) time to dissolve (b) the kind of sugar (c) the water temperature
35. 35.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it became air (c) it spread in the water (d) it vanished for ever
36. 36.True or false: a mirror is not needed for the dissolving test. (a) False (b) True
37. 37.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a mirror (b) sugar (c) cold water (d) warm water
38. 38.True or false: sand dissolves in water. (a) True (b) False
39. 39.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) True (b) False
40. 40.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) cotton wool (c) two clear glasses (d) sugar

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