Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 799 · 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.True or false: a mirror is not needed for the dissolving test. (a) True (b) False
2. 2.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) two clear glasses (c) sugar (d) a balloon
3. 3.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar left unstirred (c) powdered sugar (d) sugar in warm water
4. 4.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) the youngest child (c) a grown-up (d) a friend who is running
5. 5.🛟 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
6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we change it (b) we keep it the same (c) we measure it
7. 7.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
8. 8.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of water (b) the water temperature (c) the stirring (d) time to dissolve
9. 9.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) both the same (c) the sugar cube (d) powdered sugar
10. 10.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) cold water (c) sugar (d) a magnet
11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) False (b) True
12. 12.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) time to dissolve (b) the kind of sugar (c) the amount of sugar (d) the water temperature
13. 13.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a mirror (b) two clear glasses (c) cold water (d) warm water
14. 14.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
15. 15.🔮 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
16. 16.True or false: powdered sugar dissolves faster. (a) True (b) False
17. 17.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
18. 18.⚖️ 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) the amount of water (c) time to dissolve
19. 19.⚖️ 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) False (b) True
20. 20.True or false: small pebbles does not dissolve in water. (a) False (b) True
21. 21.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it turns blue (c) it settles at the bottom (d) it floats up
22. 22.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
23. 23.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) sugar in warm water (d) a big sugar cube
24. 24.True or false: a magnet is not needed for the dissolving test. (a) False (b) True
25. 25.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) cotton wool (c) cold water (d) sugar
26. 26.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) False (b) True
28. 28.🥄 Which of these dissolves in water? (a) baking soda (b) sand (c) cooking oil (d) small pebbles
29. 29.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
30. 30.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
31. 31.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we change it (b) we measure it (c) we keep it the same
32. 32.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a teaspoon (c) warm water (d) a balloon
33. 33.True or false: a teaspoon is not needed for the dissolving test. (a) True (b) False
34. 34.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
35. 35.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) cold water (c) a comb (d) warm water
36. 36.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) sugar likes the dark (c) particles move faster (d) cold water is wet
37. 37.🥄 Which of these dissolves slower? (a) sugar in icy water (b) powdered sugar (c) sugar stirred well (d) sugar in warm water
38. 38.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a rainbow (c) a solution (d) a magnet
39. 39.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we measure it (b) we change it (c) we keep it the same
40. 40.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve

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