Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 686 · 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 a big sugar cube dissolve faster or slower? (a) slower (b) faster
2. 2.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
3. 3.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) False (b) True
5. 5.🔍 Which is the odd one out? (a) chalk powder (b) small pebbles (c) sawdust (d) table salt
6. 6.⚖️ 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 water (c) time to dissolve
7. 7.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a mirror (c) warm water (d) sugar
8. 8.🥄 Which of these does not dissolve in water? (a) sugar (b) chalk powder (c) table salt (d) glucose powder
9. 9.🧺 Which of these is needed for the dissolving test? (a) a clock or timer (b) a balloon (c) a magnet (d) honey
10. 10.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) smell it closely (c) taste it (d) look for leftover grains
11. 11.True or false: sugar is not needed for the dissolving test. (a) True (b) False
12. 12.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
13. 13.🥄 Which of these dissolves in water? (a) sand (b) sugar (c) chalk powder (d) small pebbles
14. 14.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) two clear glasses (c) a comb (d) sugar
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we measure it (b) we keep it the same (c) we change it
16. 16.⚖️ 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
17. 17.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
18. 18.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
19. 19.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) the same (c) slower (d) faster
20. 20.🧺 Which of these is not needed for the dissolving test? (a) honey (b) a clock or timer (c) two clear glasses (d) warm water
21. 21.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) add more water (c) let the water evaporate (d) stir it more
22. 22.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) nobody needs to (c) a friend who is running (d) the youngest child
23. 23.True or false: a magnet is not needed for the dissolving test. (a) True (b) False
24. 24.🧺 Which of these is needed for the dissolving test? (a) two clear glasses (b) a mirror (c) a magnet (d) a balloon
25. 25.⚖️ 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 water (b) the water temperature (c) the kind of sugar (d) time to dissolve
26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) time to dissolve (b) the water temperature (c) the stirring (d) the kind of sugar
27. 27.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
28. 28.⚖️ 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
29. 29.True or false: cooking oil dissolves in water. (a) False (b) True
30. 30.🥄 Which of these does not dissolve in water? (a) sawdust (b) sugar (c) food colour (d) baking soda
31. 31.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) warm water (c) a clock or timer (d) a balloon
32. 32.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a magnet (c) sugar (d) warm water
33. 33.🔍 Which is the odd one out? (a) chalk powder (b) baking soda (c) sugar (d) table salt
34. 34.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) some stays undissolved (c) the water turns solid (d) the sugar turns to salt
35. 35.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it turns blue (c) it settles at the bottom (d) it dissolves
36. 36.True or false: sugar in icy water dissolves faster. (a) True (b) False
37. 37.True or false: table salt dissolves in water. (a) True (b) False
38. 38.True or false: a balloon is needed for the dissolving test. (a) False (b) True
39. 39.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
40. 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is the one thing we change. (a) True (b) False

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