Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 769 · 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) the water temperature (b) the amount of sugar (c) time to dissolve
2. 2.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a grown-up (c) the youngest child (d) a friend who is running
3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the kind of sugar (b) time to dissolve (c) the amount of sugar (d) the water temperature
4. 4.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a teaspoon (c) honey (d) cotton wool
5. 5.True or false: cotton wool is needed for the dissolving test. (a) True (b) False
6. 6.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
7. 7.🥄 Which of these does not dissolve in water? (a) table salt (b) sugar (c) sand (d) glucose powder
8. 8.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) slower (c) not at all (d) faster
9. 9.🔍 Which is the odd one out? (a) cooking oil (b) table salt (c) sugar (d) baking soda
10. 10.⚖️ 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) False (b) True
11. 11.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a balloon (b) two clear glasses (c) warm water (d) cold water
12. 12.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
13. 13.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
14. 14.True or false: sugar left unstirred dissolves faster. (a) True (b) False
15. 15.True or false: cooking oil does not dissolve in water. (a) True (b) False
16. 16.True or false: a mirror is needed for the dissolving test. (a) True (b) False
17. 17.🔍 Which is the odd one out? (a) table salt (b) glucose powder (c) small pebbles (d) food colour
18. 18.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a solution (c) a crystal (d) a rainbow
19. 19.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) True (b) False
20. 20.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) smell it closely (c) taste it (d) poke it with a finger
21. 21.🔍 How can you get the salt back from salty water? (a) let the water evaporate (b) keep it in a fridge (c) stir it more (d) add more water
22. 22.True or false: sugar does not dissolve in water. (a) False (b) True
23. 23.🧺 Which of these is not needed for the dissolving test? (a) a magnet (b) two clear glasses (c) sugar (d) a teaspoon
24. 24.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we measure it (b) we keep it the same (c) we change it
25. 25.True or false: sawdust dissolves in water. (a) False (b) True
26. 26.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) all of it dissolves (c) the sugar turns to salt (d) the water turns solid
27. 27.🔍 Which is the odd one out? (a) glucose powder (b) sugar (c) table salt (d) sawdust
28. 28.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it turns blue (c) it dissolves (d) it settles at the bottom
29. 29.🥄 Which of these does not dissolve in water? (a) baking soda (b) small pebbles (c) glucose powder (d) sugar
30. 30.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
31. 31.True or false: glucose powder does not dissolve in water. (a) False (b) True
32. 32.🔍 Which is the odd one out? (a) chalk powder (b) baking soda (c) sand (d) small pebbles
33. 33.⚖️ 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
34. 34.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a clock or timer (c) warm water (d) honey
35. 35.True or false: table salt does not dissolve in water. (a) False (b) True
36. 36.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we measure it (b) we keep it the same (c) we change it
37. 37.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
38. 38.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
39. 39.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
40. 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we keep it the same (b) we measure it (c) we change it

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