Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 763 · 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.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
2. 2.True or false: sawdust does not dissolve in water. (a) False (b) True
3. 3.🔍 Which is the odd one out? (a) sawdust (b) table salt (c) small pebbles (d) sand
4. 4.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
5. 5.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the amount of sugar (b) time to dissolve (c) the kind of sugar (d) the water temperature
6. 6.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) warm water (c) sugar (d) a mirror
7. 7.🔮 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
8. 8.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in icy water (c) powdered sugar (d) sugar in warm water
9. 9.🥄 Which of these dissolves faster? (a) a big sugar cube (b) powdered sugar (c) sugar in icy water (d) sugar left unstirred
10. 10.True or false: sugar is not needed for the dissolving test. (a) False (b) True
11. 11.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it floats up (c) it settles at the bottom (d) it dissolves
12. 12.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
13. 13.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a clock or timer (c) two clear glasses (d) cotton wool
14. 14.True or false: two clear glasses is needed for the dissolving test. (a) True (b) False
15. 15.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
16. 16.⚖️ 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
17. 17.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a solution (c) a crystal (d) a rainbow
18. 18.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
19. 19.True or false: sugar in icy water dissolves faster. (a) True (b) False
20. 20.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) two clear glasses (c) a mirror (d) warm water
21. 21.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a friend who is running (c) a grown-up (d) the youngest child
22. 22.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) two clear glasses (c) warm water (d) honey
23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we change it (b) we measure it (c) we keep it the same
24. 24.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
25. 25.True or false: sugar left unstirred dissolves slower. (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 water temperature”? (a) we keep it the same (b) we change it (c) we measure it
27. 27.⚖️ 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 keep it the same (c) we change it
28. 28.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) slower (c) faster (d) not at all
29. 29.True or false: sawdust dissolves in water. (a) False (b) True
30. 30.True or false: a big sugar cube dissolves faster. (a) False (b) True
31. 31.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a magnet (c) cold water (d) sugar
32. 32.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) two clear glasses (c) a balloon (d) warm water
33. 33.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) taste it (c) smell it closely (d) poke it with a finger
34. 34.True or false: cooking oil does not dissolve in water. (a) True (b) False
35. 35.🥄 Which of these dissolves faster? (a) sugar stirred well (b) sugar left unstirred (c) sugar in icy water (d) a big sugar cube
36. 36.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) warm water is thicker (c) particles move faster (d) cold water is wet
37. 37.🥄 Which of these does not dissolve in water? (a) baking soda (b) sand (c) glucose powder (d) food colour
38. 38.⚖️ 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
39. 39.🔍 Which is the odd one out? (a) baking soda (b) food colour (c) sugar (d) cooking oil
40. 40.True or false: a magnet is not needed for the dissolving test. (a) False (b) True

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