Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 179 · 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) a teaspoon (b) a mirror (c) cold water (d) warm water
2. 2.🛟 How should you check if the sugar has dissolved? (a) taste it (b) smell it closely (c) look for leftover grains (d) poke it with a finger
3. 3.🔍 Which is the odd one out? (a) table salt (b) sugar (c) chalk powder (d) baking soda
4. 4.🔮 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
5. 5.True or false: cooking oil does not dissolve in water. (a) True (b) False
6. 6.🔍 How can you get the salt back from salty water? (a) let the water evaporate (b) add more water (c) stir it more (d) keep it in a fridge
7. 7.⚖️ 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 stirring (c) time to dissolve (d) the kind of sugar
8. 8.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a teaspoon (c) a magnet (d) cold water
9. 9.True or false: sand does not dissolve in water. (a) False (b) True
10. 10.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) a big sugar cube (d) powdered sugar
11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is kept the same. (a) False (b) True
12. 12.True or false: sugar is needed for the dissolving test. (a) True (b) False
13. 13.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) the youngest child (c) nobody needs to (d) a grown-up
14. 14.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
15. 15.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is what we measure. (a) False (b) True
17. 17.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) slower (c) faster (d) not at all
18. 18.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
19. 19.🔍 Which is the odd one out? (a) sand (b) small pebbles (c) sugar (d) cooking oil
20. 20.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
21. 21.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) some stays undissolved (c) all of it dissolves (d) the sugar turns to salt
22. 22.🔍 Which is the odd one out? (a) chalk powder (b) sand (c) table salt (d) cooking oil
23. 23.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
24. 24.True or false: powdered sugar dissolves slower. (a) True (b) False
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 measure it (b) we change it (c) we keep it the same
26. 26.⚖️ 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 keep it the same (c) we change it
27. 27.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) cold water (c) cotton wool (d) a clock or timer
28. 28.🔍 Sand is stirred into water. What do you see after a while? (a) it settles at the bottom (b) it dissolves (c) it floats up (d) it turns blue
29. 29.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) two clear glasses (c) warm water (d) a balloon
30. 30.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) cold water (c) a balloon (d) honey
31. 31.🥄 Which of these does not dissolve in water? (a) sugar (b) glucose powder (c) table salt (d) cooking oil
32. 32.True or false: a clock or timer is not needed for the dissolving test. (a) True (b) False
33. 33.⚖️ 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
34. 34.True or false: sugar left unstirred dissolves faster. (a) True (b) False
35. 35.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
36. 36.True or false: honey is needed for the dissolving test. (a) False (b) True
37. 37.🥄 Which of these dissolves faster? (a) sugar in warm water (b) sugar in icy water (c) sugar left unstirred (d) a big sugar cube
38. 38.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
39. 39.True or false: a big sugar cube dissolves faster. (a) True (b) False
40. 40.⚖️ 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 stirring (c) the kind of sugar (d) the water temperature

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