Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 220 · 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.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) warm water (c) two clear glasses (d) a mirror
2. 2.🥄 Which of these dissolves in water? (a) cooking oil (b) small pebbles (c) table salt (d) sand
3. 3.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) not at all (c) faster (d) the same
4. 4.⚖️ 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 measure it (c) we keep it the same
5. 5.🥄 Which of these dissolves in water? (a) chalk powder (b) cooking oil (c) sand (d) sugar
6. 6.True or false: a magnet is needed for the dissolving test. (a) False (b) True
7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) True (b) False
8. 8.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in icy water (c) sugar stirred well (d) sugar in warm water
9. 9.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a mirror (c) two clear glasses (d) a comb
10. 10.🛟 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
11. 11.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) warm water is thicker (c) cold water is wet (d) particles move faster
12. 12.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in warm water (c) sugar in icy water (d) sugar left unstirred
13. 13.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a crystal (c) a solution (d) a magnet
14. 14.True or false: cotton wool is needed for the dissolving test. (a) True (b) False
15. 15.True or false: glucose powder does not dissolve in water. (a) True (b) False
16. 16.⚖️ 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 stirring (d) the water temperature
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we measure it (b) we change it (c) we keep it the same
18. 18.🔍 Which is the odd one out? (a) baking soda (b) small pebbles (c) table salt (d) glucose powder
19. 19.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
20. 20.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) a teaspoon (c) a magnet (d) cold water
21. 21.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
22. 22.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it vanished for ever (c) it became air (d) it spread in the water
23. 23.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) powdered sugar (d) sugar left unstirred
24. 24.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar stirred well (d) sugar in icy water
25. 25.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is the one thing we change. (a) False (b) True
26. 26.True or false: a mirror is not needed for the dissolving test. (a) True (b) False
27. 27.🥄 Which of these does not dissolve in water? (a) table salt (b) sugar (c) glucose powder (d) cooking oil
28. 28.True or false: warm water is not needed for the dissolving test. (a) False (b) True
29. 29.True or false: sugar does not dissolve in water. (a) False (b) True
30. 30.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
31. 31.🔮 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
32. 32.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) honey (c) a comb (d) warm water
33. 33.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) cotton wool (c) two clear glasses (d) a clock or timer
34. 34.True or false: sugar left unstirred dissolves faster. (a) False (b) True
35. 35.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is kept the same. (a) False (b) True
36. 36.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
37. 37.True or false: a balloon is not needed for the dissolving test. (a) False (b) True
38. 38.True or false: sugar stirred well dissolves slower. (a) True (b) False
39. 39.True or false: warm water is needed for the dissolving test. (a) False (b) True
40. 40.🥄 Which of these does not dissolve in water? (a) sugar (b) table salt (c) food colour (d) sand

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