Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 52 · 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 the one thing we change? (a) the water temperature (b) the kind of sugar (c) the stirring (d) time to dissolve
2. 2.🛟 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
3. 3.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) cotton wool (c) a teaspoon (d) honey
4. 4.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
5. 5.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) sugar (c) a mirror (d) warm water
6. 6.🥄 Which of these dissolves in water? (a) sawdust (b) sand (c) cooking oil (d) glucose powder
7. 7.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a balloon (c) a clock or timer (d) two clear glasses
8. 8.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
9. 9.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the stirring (b) time to dissolve (c) the kind of sugar (d) the amount of water
10. 10.True or false: sugar is not needed for the dissolving test. (a) True (b) False
11. 11.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it dissolves (c) it settles at the bottom (d) it turns blue
12. 12.🥄 Which of these does not dissolve in water? (a) table salt (b) chalk powder (c) glucose powder (d) sugar
13. 13.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cotton wool (b) two clear glasses (c) sugar (d) warm water
14. 14.⚖️ 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
15. 15.⚖️ 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 measure it (c) we change it
16. 16.🔍 Which is the odd one out? (a) baking soda (b) sugar (c) glucose powder (d) cooking oil
17. 17.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) not at all (c) faster (d) slower
18. 18.⚖️ 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
19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a clock or timer (c) a comb (d) warm water
20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is what we measure. (a) True (b) False
21. 21.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) two clear glasses (c) a balloon (d) honey
22. 22.🥄 Which of these does not dissolve in water? (a) glucose powder (b) sugar (c) baking soda (d) sand
23. 23.True or false: sugar in warm water dissolves faster. (a) True (b) False
24. 24.🛟 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
25. 25.True or false: sugar dissolves in water. (a) False (b) True
26. 26.True or false: a balloon is needed for the dissolving test. (a) True (b) False
27. 27.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
28. 28.True or false: cotton wool is not needed for the dissolving test. (a) True (b) False
29. 29.🔮 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) all of it dissolves (d) the sugar turns to salt
30. 30.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
31. 31.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
32. 32.🥄 Which of these dissolves in water? (a) small pebbles (b) sugar (c) chalk powder (d) sand
33. 33.True or false: food colour dissolves in water. (a) True (b) False
34. 34.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
35. 35.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
36. 36.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
37. 37.True or false: table salt does not dissolve in water. (a) False (b) True
38. 38.⚖️ 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) time to dissolve (c) the amount of water
39. 39.True or false: sugar stirred well dissolves slower. (a) True (b) False
40. 40.🔍 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

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