Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 348 · 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.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) a grown-up (c) the youngest child (d) nobody needs to
2. 2.🔮 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
3. 3.True or false: chalk powder dissolves in water. (a) True (b) False
4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the kind of sugar (b) the amount of sugar (c) the water temperature (d) time to dissolve
5. 5.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a balloon (c) a clock or timer (d) warm water
6. 6.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a mirror (c) cold water (d) a clock or timer
7. 7.🔍 How can you get the salt back from salty water? (a) let the water evaporate (b) add more water (c) keep it in a fridge (d) stir it more
8. 8.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) powdered sugar (d) sugar left unstirred
9. 9.True or false: honey is not needed for the dissolving test. (a) False (b) True
10. 10.⚖️ 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 measure it (c) we change it
11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the water temperature (b) the amount of sugar (c) the kind of sugar (d) time to dissolve
12. 12.🧺 Which of these is not needed for the dissolving test? (a) a mirror (b) warm water (c) a teaspoon (d) sugar
13. 13.🔍 Which is the odd one out? (a) sugar (b) glucose powder (c) baking soda (d) cooking oil
14. 14.True or false: table salt dissolves in water. (a) False (b) True
15. 15.🔍 Which is the odd one out? (a) chalk powder (b) food colour (c) sawdust (d) sand
16. 16.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a clock or timer (c) cotton wool (d) warm water
17. 17.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a magnet (c) a clock or timer (d) two clear glasses
18. 18.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) cold water (c) honey (d) two clear glasses
19. 19.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) both the same (c) powdered sugar (d) neither of them
20. 20.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is kept the same. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) glucose powder (b) cooking oil (c) small pebbles (d) sawdust
23. 23.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
24. 24.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) look for leftover grains (c) taste it (d) poke it with a finger
25. 25.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
26. 26.True or false: a teaspoon is needed for the dissolving test. (a) True (b) False
27. 27.True or false: small pebbles dissolves in water. (a) False (b) True
28. 28.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) faster (c) slower (d) the same
29. 29.⚖️ 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
30. 30.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) powdered sugar (d) a big sugar cube
31. 31.True or false: powdered sugar dissolves slower. (a) False (b) True
32. 32.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) warm water (c) honey (d) a balloon
33. 33.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) two clear glasses (c) a comb (d) a teaspoon
34. 34.True or false: sugar is needed for the dissolving test. (a) True (b) False
35. 35.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
36. 36.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
37. 37.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar in icy water (d) sugar stirred well
38. 38.🔍 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
39. 39.True or false: a comb is needed for the dissolving test. (a) False (b) True
40. 40.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster

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