Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 718 · 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) time to dissolve (b) the water temperature (c) the stirring
2. 2.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
3. 3.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a teaspoon (c) sugar (d) cotton wool
4. 4.True or false: table salt does not dissolve in water. (a) False (b) True
5. 5.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) a balloon (c) sugar (d) a comb
6. 6.⚖️ 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
7. 7.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) the youngest child (c) nobody needs to (d) a friend who is running
8. 8.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a crystal (c) a solution (d) a magnet
9. 9.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is the one thing we change. (a) True (b) False
10. 10.True or false: a balloon is needed for the dissolving test. (a) False (b) True
11. 11.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
12. 12.⚖️ 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
13. 13.True or false: sugar in warm water dissolves slower. (a) True (b) False
14. 14.True or false: chalk powder does not dissolve in water. (a) False (b) True
15. 15.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
16. 16.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we keep it the same (b) we change it (c) we measure it
18. 18.🔍 Which is the odd one out? (a) sugar (b) food colour (c) sand (d) baking soda
19. 19.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we measure it (b) we change it (c) we keep it the same
20. 20.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) honey (c) cotton wool (d) a clock or timer
21. 21.True or false: a clock or timer is needed for the dissolving test. (a) False (b) True
22. 22.True or false: a mirror is not needed for the dissolving test. (a) False (b) True
23. 23.🔍 How can you get the salt back from salty water? (a) stir it more (b) keep it in a fridge (c) let the water evaporate (d) add more water
24. 24.True or false: honey is needed for the dissolving test. (a) True (b) False
25. 25.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
26. 26.🥄 Which of these dissolves in water? (a) chalk powder (b) cooking oil (c) sawdust (d) sugar
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.🔍 Which is the odd one out? (a) sugar (b) glucose powder (c) chalk powder (d) table salt
29. 29.🥄 Which of these dissolves in water? (a) small pebbles (b) glucose powder (c) cooking oil (d) chalk powder
30. 30.True or false: sugar does not dissolve in water. (a) True (b) False
31. 31.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) all of it dissolves (c) some stays undissolved (d) the sugar turns to salt
32. 32.True or false: sugar is not needed for the dissolving test. (a) True (b) False
33. 33.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it dissolves (c) it turns blue (d) it settles at the bottom
34. 34.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
35. 35.True or false: a magnet is not needed for the dissolving test. (a) False (b) True
36. 36.⚖️ 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
37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is the one thing we change. (a) True (b) False
38. 38.🥄 Which of these dissolves in water? (a) sawdust (b) table salt (c) cooking oil (d) small pebbles
39. 39.True or false: sugar left unstirred dissolves faster. (a) False (b) True
40. 40.True or false: warm water is not needed for the dissolving test. (a) False (b) True

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