Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 812 · 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) the sugar cube (c) both the same (d) powdered sugar
2. 2.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) sugar in icy water (d) sugar in warm water
3. 3.⚖️ 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 change it (c) we keep it the same
4. 4.True or false: sugar stirred well dissolves faster. (a) False (b) True
5. 5.⚖️ 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) time to dissolve (c) the kind of sugar
6. 6.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) sugar (c) two clear glasses (d) cold water
7. 7.⚖️ 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 amount of sugar (c) the water temperature (d) the amount of water
8. 8.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we keep it the same (b) we measure it (c) we change it
9. 9.True or false: sand does not dissolve in water. (a) False (b) True
10. 10.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
11. 11.🥄 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
12. 12.🥄 Which of these dissolves in water? (a) sawdust (b) chalk powder (c) small pebbles (d) sugar
13. 13.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a clock or timer (c) a comb (d) honey
14. 14.🥄 Which of these does not dissolve in water? (a) cooking oil (b) baking soda (c) sugar (d) food colour
15. 15.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
16. 16.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a magnet (c) warm water (d) cold water
17. 17.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) slower (c) not at all (d) faster
18. 18.🔍 Which is the odd one out? (a) sand (b) food colour (c) glucose powder (d) sugar
19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a comb (b) cold water (c) warm water (d) sugar
20. 20.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
21. 21.True or false: a big sugar cube dissolves faster. (a) True (b) False
22. 22.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) sugar in warm water (d) a big sugar cube
23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we keep it the same (b) we measure it (c) we change it
24. 24.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we keep it the same (b) we change it (c) we measure it
25. 25.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) a clock or timer (c) sugar (d) a mirror
26. 26.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a balloon (c) sugar (d) a clock or timer
27. 27.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) taste it (c) look for leftover grains (d) poke it with a finger
28. 28.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
29. 29.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) honey (c) a mirror (d) two clear glasses
30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is what we measure. (a) False (b) True
31. 31.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
32. 32.True or false: sugar does not dissolve in water. (a) False (b) True
33. 33.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
34. 34.🔍 How can you get the salt back from salty water? (a) let the water evaporate (b) keep it in a fridge (c) add more water (d) stir it more
35. 35.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a grown-up (c) a friend who is running (d) the youngest child
36. 36.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) False (b) True
37. 37.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a balloon (c) honey (d) cold water
38. 38.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
39. 39.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) True (b) False
40. 40.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it dissolves (c) it turns blue (d) it settles at the bottom

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