Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 917 · 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.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
2. 2.⚖️ 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
3. 3.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
4. 4.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) slower (c) not at all (d) the same
5. 5.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
6. 6.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
7. 7.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) warm water (c) cold water (d) a mirror
8. 8.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) cold water (c) a comb (d) a teaspoon
9. 9.🛟 How should you check if the sugar has dissolved? (a) taste it (b) smell it closely (c) poke it with a finger (d) look for leftover grains
10. 10.True or false: cold water is needed for the dissolving test. (a) True (b) False
11. 11.🧺 Which of these is not needed for the dissolving test? (a) a magnet (b) cold water (c) a teaspoon (d) a clock or timer
12. 12.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) sugar (c) a teaspoon (d) a balloon
13. 13.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) stir it more (c) add more water (d) let the water evaporate
14. 14.🥄 Which of these does not dissolve in water? (a) small pebbles (b) baking soda (c) food colour (d) glucose powder
15. 15.True or false: a big sugar cube dissolves faster. (a) False (b) True
16. 16.⚖️ 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) True (b) False
17. 17.True or false: warm water is needed for the dissolving test. (a) False (b) True
18. 18.⚖️ 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
19. 19.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
20. 20.True or false: sugar in icy water dissolves slower. (a) False (b) True
21. 21.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a crystal (c) a magnet (d) a solution
22. 22.🧺 Which of these is needed for the dissolving test? (a) a comb (b) honey (c) cotton wool (d) sugar
23. 23.⚖️ 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
24. 24.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
25. 25.🧺 Which of these is needed for the dissolving test? (a) a teaspoon (b) a comb (c) a balloon (d) cotton wool
26. 26.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the stirring (b) the amount of water (c) time to dissolve (d) the water temperature
28. 28.True or false: cooking oil does not dissolve in water. (a) False (b) True
29. 29.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) two clear glasses (c) a clock or timer (d) cotton wool
30. 30.⚖️ 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 water temperature (c) the kind of sugar
31. 31.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) two clear glasses (c) sugar (d) a comb
32. 32.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it settles at the bottom (c) it floats up (d) it turns blue
33. 33.🧺 Which of these is needed for the dissolving test? (a) honey (b) a mirror (c) cotton wool (d) two clear glasses
34. 34.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
35. 35.🔮 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) some stays undissolved (c) the water turns solid (d) all of it dissolves
36. 36.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a comb (c) a mirror (d) warm water
37. 37.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it sank as sand (c) it became air (d) it vanished for ever
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.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a clock or timer (c) a magnet (d) cold water
40. 40.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve

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