Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 632 · 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.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) both the same (c) powdered sugar (d) the sugar cube
2. 2.True or false: food colour does not dissolve in water. (a) False (b) True
3. 3.True or false: sugar dissolves in water. (a) True (b) False
4. 4.True or false: sugar stirred well dissolves faster. (a) False (b) True
5. 5.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) smell it closely (c) poke it with a finger (d) taste it
6. 6.True or false: table salt dissolves in water. (a) True (b) False
7. 7.🔍 Which is the odd one out? (a) glucose powder (b) small pebbles (c) sand (d) cooking oil
8. 8.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it turns blue (c) it dissolves (d) it settles at the bottom
9. 9.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
10. 10.True or false: sugar is needed for the dissolving test. (a) False (b) True
11. 11.🥄 Which of these dissolves in water? (a) sand (b) chalk powder (c) food colour (d) cooking oil
12. 12.True or false: a magnet is not needed for the dissolving test. (a) True (b) False
13. 13.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) slower (c) faster (d) not at all
14. 14.🥄 Which of these dissolves faster? (a) sugar in warm water (b) sugar in icy water (c) sugar left unstirred (d) a big sugar cube
15. 15.⚖️ 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
16. 16.True or false: sugar left unstirred dissolves faster. (a) True (b) False
17. 17.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a comb (c) two clear glasses (d) warm water
18. 18.⚖️ 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 change it (c) we keep it the same
19. 19.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) sugar (c) cold water (d) a mirror
20. 20.🥄 Which of these dissolves faster? (a) powdered sugar (b) sugar left unstirred (c) a big sugar cube (d) sugar in icy water
21. 21.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
22. 22.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
23. 23.True or false: a big sugar cube dissolves faster. (a) True (b) False
24. 24.⚖️ 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 measure it (c) we change it
25. 25.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
26. 26.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) sugar (c) a balloon (d) warm water
27. 27.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) cotton wool (c) a teaspoon (d) a clock or timer
28. 28.🧺 Which of these is needed for the dissolving test? (a) warm water (b) a magnet (c) a comb (d) cotton wool
29. 29.🧺 Which of these is not needed for the dissolving test? (a) a magnet (b) a teaspoon (c) sugar (d) two clear glasses
30. 30.True or false: a comb is needed for the dissolving test. (a) True (b) False
31. 31.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a crystal (c) a solution (d) a rainbow
32. 32.⚖️ 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) True (b) False
33. 33.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) the water turns solid (c) the sugar turns to salt (d) all of it dissolves
34. 34.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is what we measure. (a) True (b) False
35. 35.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) sugar (c) warm water (d) a magnet
36. 36.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
37. 37.True or false: a teaspoon is needed for the dissolving test. (a) True (b) False
38. 38.⚖️ 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
39. 39.True or false: a comb is not needed for the dissolving test. (a) False (b) True
40. 40.🥄 Which of these dissolves slower? (a) sugar in icy water (b) sugar stirred well (c) powdered sugar (d) sugar in warm water

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