Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 740 · 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? True or false: time to dissolve is the one thing we change. (a) False (b) True
2. 2.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
3. 3.🔮 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
4. 4.True or false: sawdust dissolves in water. (a) True (b) False
5. 5.🥄 Which of these dissolves in water? (a) table salt (b) sawdust (c) sand (d) small pebbles
6. 6.🥄 Which of these dissolves in water? (a) sawdust (b) cooking oil (c) chalk powder (d) glucose powder
7. 7.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a teaspoon (c) a comb (d) cold water
8. 8.True or false: glucose powder does not dissolve in water. (a) False (b) True
9. 9.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
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.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a balloon (b) a clock or timer (c) sugar (d) two clear glasses
12. 12.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) warm water is thicker (c) cold water is wet (d) particles move faster
13. 13.⚖️ 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 amount of water
14. 14.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) the sugar cube (c) both the same (d) powdered sugar
15. 15.⚖️ 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) False (b) True
16. 16.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
17. 17.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) taste it (c) smell it closely (d) look for leftover grains
18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we keep it the same (b) we change it (c) we measure it
19. 19.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) the youngest child (c) nobody needs to (d) a grown-up
20. 20.True or false: powdered sugar dissolves faster. (a) False (b) True
21. 21.True or false: a comb is not needed for the dissolving test. (a) False (b) True
22. 22.⚖️ 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 change it (c) we keep it the same
23. 23.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) honey (c) cotton wool (d) cold water
24. 24.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
25. 25.True or false: baking soda does not dissolve in water. (a) False (b) True
26. 26.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) honey (c) a clock or timer (d) warm water
27. 27.True or false: honey is not needed for the dissolving test. (a) False (b) True
28. 28.🧺 Which of these is needed for the dissolving test? (a) two clear glasses (b) a mirror (c) cotton wool (d) honey
29. 29.🥄 Which of these dissolves in water? (a) sawdust (b) baking soda (c) chalk powder (d) sand
30. 30.True or false: cold water is not needed for the dissolving test. (a) False (b) True
31. 31.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) powdered sugar (d) a big sugar cube
32. 32.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) warm water (c) cold water (d) a magnet
33. 33.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
34. 34.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it settles at the bottom (c) it turns blue (d) it floats up
35. 35.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
36. 36.🔍 How can you get the salt back from salty water? (a) stir it more (b) keep it in a fridge (c) add more water (d) let the water evaporate
37. 37.🔍 Which is the odd one out? (a) glucose powder (b) sugar (c) cooking oil (d) food colour
38. 38.🧺 Which of these is not needed for the dissolving test? (a) a balloon (b) a teaspoon (c) sugar (d) cold water
39. 39.🥄 Which of these dissolves in water? (a) cooking oil (b) sand (c) sugar (d) chalk powder
40. 40.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) not at all (d) faster

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