Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 286 · 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.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a magnet (c) a rainbow (d) a solution
2. 2.🔮 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
3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we change it (b) we measure it (c) we keep it the same
4. 4.⚖️ 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) time to dissolve (c) the stirring
5. 5.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) a clock or timer (c) a teaspoon (d) a magnet
6. 6.⚖️ 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
7. 7.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) look for leftover grains (c) taste it (d) smell it closely
8. 8.True or false: a comb is needed for the dissolving test. (a) True (b) False
9. 9.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
10. 10.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
11. 11.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a comb (c) two clear glasses (d) cold water
12. 12.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) particles move faster (c) sugar likes the dark (d) warm water is thicker
13. 13.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
14. 14.🥄 Which of these dissolves faster? (a) sugar stirred well (b) sugar in icy water (c) sugar left unstirred (d) a big sugar cube
15. 15.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
16. 16.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
17. 17.True or false: a teaspoon is needed for the dissolving test. (a) False (b) True
18. 18.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) sugar left unstirred (d) powdered sugar
19. 19.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar left unstirred (d) powdered sugar
20. 20.🔮 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 sugar turns to salt (d) the water turns solid
21. 21.🥄 Which of these dissolves in water? (a) cooking oil (b) baking soda (c) small pebbles (d) sand
22. 22.🥄 Which of these dissolves in water? (a) small pebbles (b) glucose powder (c) cooking oil (d) sawdust
23. 23.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
24. 24.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
25. 25.True or false: a teaspoon is not needed for the dissolving test. (a) True (b) False
26. 26.⚖️ 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
27. 27.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
28. 28.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a friend who is running (c) a grown-up (d) nobody needs to
29. 29.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) stir it more (c) let the water evaporate (d) add more water
30. 30.🥄 Which of these does not dissolve in water? (a) glucose powder (b) food colour (c) chalk powder (d) table salt
31. 31.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) not at all (c) the same (d) slower
32. 32.True or false: cooking oil does not dissolve in water. (a) False (b) True
33. 33.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) cotton wool (c) a mirror (d) cold water
34. 34.True or false: sawdust dissolves in water. (a) True (b) False
35. 35.⚖️ 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
36. 36.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the stirring (b) the kind of sugar (c) the water temperature (d) time to dissolve
37. 37.⚖️ 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 stirring (c) the water temperature (d) time to dissolve
38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is the one thing we change. (a) True (b) False
39. 39.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
40. 40.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve

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