Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 398 · 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.⚖️ 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) False (b) True
2. 2.True or false: cooking oil does not dissolve in water. (a) False (b) True
3. 3.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
4. 4.🥄 Which of these dissolves slower? (a) sugar stirred well (b) powdered sugar (c) a big sugar cube (d) sugar in warm water
5. 5.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
6. 6.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
7. 7.🔍 Which is the odd one out? (a) food colour (b) glucose powder (c) baking soda (d) small pebbles
8. 8.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it sank as sand (c) it spread in the water (d) it vanished for ever
9. 9.⚖️ 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
10. 10.True or false: sugar stirred well dissolves faster. (a) True (b) False
11. 11.True or false: sugar in icy water dissolves faster. (a) False (b) True
12. 12.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) warm water (c) a clock or timer (d) cotton wool
13. 13.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) poke it with a finger (c) taste it (d) smell it closely
14. 14.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
15. 15.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
16. 16.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) sugar left unstirred (d) powdered sugar
17. 17.🥄 Which of these does not dissolve in water? (a) glucose powder (b) table salt (c) sugar (d) cooking oil
18. 18.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) sugar (c) cold water (d) honey
19. 19.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
20. 20.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a solution (c) a crystal (d) a rainbow
21. 21.⚖️ 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
22. 22.🔍 Which is the odd one out? (a) sand (b) small pebbles (c) sugar (d) chalk powder
23. 23.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
24. 24.🔍 Which is the odd one out? (a) sand (b) sawdust (c) food colour (d) cooking oil
25. 25.⚖️ 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 keep it the same (c) we measure it
26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we measure it (b) we change it (c) we keep it the same
27. 27.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
28. 28.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
29. 29.True or false: a big sugar cube dissolves faster. (a) True (b) False
30. 30.⚖️ 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) False (b) True
31. 31.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is kept the same. (a) False (b) True
32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we measure it (b) we keep it the same (c) we change it
33. 33.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) sugar left unstirred (d) powdered sugar
34. 34.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar in icy water (d) sugar stirred well
35. 35.⚖️ 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 water (b) the kind of sugar (c) the stirring (d) the water temperature
36. 36.True or false: table salt does not dissolve in water. (a) False (b) True
37. 37.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
38. 38.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) sugar likes the dark (c) cold water is wet (d) warm water is thicker
39. 39.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) time to dissolve (b) the kind of sugar (c) the water temperature
40. 40.True or false: sugar stirred well dissolves slower. (a) True (b) False

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