Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 606 · 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: warm water is not needed for the dissolving test. (a) True (b) False
2. 2.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the sugar turns to salt (b) all of it dissolves (c) the water turns solid (d) some stays undissolved
3. 3.🔍 How can you get the salt back from salty water? (a) stir it more (b) let the water evaporate (c) keep it in a fridge (d) add more water
4. 4.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
5. 5.⚖️ 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
6. 6.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
7. 7.🥄 Which of these does not dissolve in water? (a) baking soda (b) sugar (c) table salt (d) sand
8. 8.True or false: sugar is needed for the dissolving test. (a) False (b) True
9. 9.True or false: sugar dissolves in water. (a) True (b) False
10. 10.True or false: sugar stirred well dissolves slower. (a) False (b) True
11. 11.True or false: sand dissolves in water. (a) True (b) False
12. 12.True or false: table salt does not dissolve in water. (a) True (b) False
13. 13.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
14. 14.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) cotton wool (c) warm water (d) a clock or timer
15. 15.🥄 Which of these dissolves slower? (a) sugar left unstirred (b) sugar in warm water (c) powdered sugar (d) sugar stirred well
16. 16.🛟 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
17. 17.⚖️ 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
18. 18.True or false: powdered sugar dissolves slower. (a) False (b) True
19. 19.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) both the same (c) the sugar cube (d) neither of them
20. 20.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) faster (c) not at all (d) slower
21. 21.True or false: sugar in icy water dissolves faster. (a) False (b) True
22. 22.True or false: sawdust does not dissolve in water. (a) False (b) True
23. 23.⚖️ 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) time to dissolve (c) the kind of sugar (d) the amount of water
24. 24.🥄 Which of these dissolves faster? (a) sugar in warm water (b) a big sugar cube (c) sugar left unstirred (d) sugar in icy water
25. 25.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) a balloon (c) sugar (d) warm water
26. 26.⚖️ 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
27. 27.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) two clear glasses (c) sugar (d) a balloon
28. 28.🥄 Which of these does not dissolve in water? (a) glucose powder (b) baking soda (c) food colour (d) cooking oil
29. 29.🥄 Which of these dissolves in water? (a) table salt (b) sand (c) sawdust (d) small pebbles
30. 30.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) cold water is wet (c) sugar likes the dark (d) particles move faster
31. 31.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of water (b) the water temperature (c) time to dissolve
32. 32.True or false: baking soda dissolves in water. (a) True (b) False
33. 33.⚖️ 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
34. 34.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
35. 35.⚖️ 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
36. 36.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a magnet (c) a clock or timer (d) warm water
37. 37.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it settles at the bottom (c) it dissolves (d) it floats up
38. 38.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a clock or timer (c) sugar (d) a mirror
39. 39.⚖️ 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
40. 40.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) cotton wool (c) a teaspoon (d) a comb

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