Dissolving Experiment Worksheet: Warm and Cold Water

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

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