Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 584 · 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.True or false: table salt does not dissolve in water. (a) True (b) False
2. 2.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
3. 3.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
4. 4.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a grown-up (c) nobody needs to (d) a friend who is running
5. 5.🧺 Which of these is not needed for the dissolving test? (a) a magnet (b) two clear glasses (c) cold water (d) sugar
6. 6.🔍 Sand is stirred into water. What do you see after a while? (a) it settles at the bottom (b) it turns blue (c) it floats up (d) it dissolves
7. 7.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) both the same (c) the sugar cube (d) powdered sugar
8. 8.🔍 How can you get the salt back from salty water? (a) add more water (b) stir it more (c) let the water evaporate (d) keep it in a fridge
9. 9.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) warm water (c) cold water (d) a comb
10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the water temperature (b) the kind of sugar (c) the amount of water (d) time to dissolve
11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) False (b) True
12. 12.⚖️ 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 keep it the same (c) we measure it
13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is what we measure. (a) True (b) False
14. 14.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) sugar (c) a clock or timer (d) honey
15. 15.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it vanished for ever (c) it sank as sand (d) it spread in the water
16. 16.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a mirror (c) two clear glasses (d) honey
17. 17.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
18. 18.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
19. 19.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) not at all (c) faster (d) the same
20. 20.⚖️ 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
21. 21.True or false: sugar is needed for the dissolving test. (a) True (b) False
22. 22.True or false: two clear glasses is needed for the dissolving test. (a) False (b) True
23. 23.True or false: baking soda dissolves in water. (a) True (b) False
24. 24.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
25. 25.🛟 How should you check if the sugar has dissolved? (a) taste it (b) look for leftover grains (c) poke it with a finger (d) smell it closely
26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of sugar (b) time to dissolve (c) the water temperature
27. 27.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a teaspoon (c) a balloon (d) two clear glasses
28. 28.True or false: a magnet is needed for the dissolving test. (a) False (b) True
29. 29.True or false: sand dissolves in water. (a) False (b) True
30. 30.True or false: a big sugar cube dissolves slower. (a) True (b) False
31. 31.🥄 Which of these dissolves slower? (a) powdered sugar (b) a big sugar cube (c) sugar in warm water (d) sugar stirred well
32. 32.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) powdered sugar (d) sugar in icy water
33. 33.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a mirror (c) two clear glasses (d) warm water
34. 34.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a clock or timer (c) a balloon (d) cotton wool
35. 35.True or false: chalk powder does not dissolve in water. (a) True (b) False
36. 36.⚖️ 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
37. 37.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) True (b) False
39. 39.True or false: cooking oil dissolves in water. (a) True (b) False
40. 40.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) sugar likes the dark (c) cold water is wet (d) particles move faster

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