Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 351 · 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.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) cold water is wet (c) sugar likes the dark (d) warm water is thicker
2. 2.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) poke it with a finger (c) taste it (d) look for leftover grains
3. 3.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
4. 4.🔮 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
5. 5.⚖️ 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 amount of water (c) the water temperature
6. 6.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) honey (c) a clock or timer (d) a magnet
7. 7.🔍 Which is the odd one out? (a) sand (b) sawdust (c) cooking oil (d) baking soda
8. 8.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) neither of them (c) powdered sugar (d) both the same
9. 9.True or false: honey is needed for the dissolving test. (a) False (b) True
10. 10.🔍 Which is the odd one out? (a) sawdust (b) table salt (c) baking soda (d) sugar
11. 11.True or false: sugar is not needed for the dissolving test. (a) True (b) False
12. 12.True or false: powdered sugar dissolves faster. (a) False (b) True
13. 13.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) cold water (c) a comb (d) two clear glasses
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 measure it (b) we change it (c) we keep it the same
15. 15.⚖️ 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) the water temperature (c) time to dissolve (d) the amount of water
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 measure it (b) we keep it the same (c) we change it
17. 17.🥄 Which of these does not dissolve in water? (a) table salt (b) sand (c) sugar (d) baking soda
18. 18.True or false: sugar in icy water dissolves slower. (a) False (b) True
19. 19.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
20. 20.True or false: chalk powder dissolves in water. (a) True (b) False
21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we measure it (c) we keep it the same
22. 22.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
23. 23.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
24. 24.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) let the water evaporate (c) add more water (d) stir it more
25. 25.🛟 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
26. 26.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) cold water (c) a mirror (d) a comb
27. 27.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
28. 28.True or false: a clock or timer is not needed for the dissolving test. (a) False (b) True
29. 29.True or false: food colour does not dissolve in water. (a) True (b) False
30. 30.True or false: a balloon is needed for the dissolving test. (a) False (b) True
31. 31.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
32. 32.True or false: two clear glasses is not needed for the dissolving test. (a) False (b) True
33. 33.🔍 Which is the odd one out? (a) sand (b) chalk powder (c) small pebbles (d) food colour
34. 34.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) cold water (c) a balloon (d) sugar
35. 35.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a magnet (c) sugar (d) a comb
36. 36.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
37. 37.🥄 Which of these does not dissolve in water? (a) chalk powder (b) baking soda (c) glucose powder (d) table salt
38. 38.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a clock or timer (c) sugar (d) a balloon
39. 39.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar in warm water (c) a big sugar cube (d) sugar left unstirred
40. 40.True or false: glucose powder does not dissolve in water. (a) True (b) False

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