Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 947 · 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 left unstirred dissolve faster or slower? (a) slower (b) faster
2. 2.⚖️ 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
3. 3.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) honey (c) a teaspoon (d) warm water
4. 4.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it settles at the bottom (c) it turns blue (d) it dissolves
5. 5.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) powdered sugar (c) both the same (d) the sugar cube
6. 6.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
7. 7.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) poke it with a finger (c) taste it (d) smell it closely
8. 8.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
9. 9.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) sugar likes the dark (c) particles move faster (d) cold water is wet
10. 10.True or false: a balloon is needed for the dissolving test. (a) False (b) True
11. 11.🔍 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
12. 12.True or false: warm water is needed for the dissolving test. (a) True (b) False
13. 13.True or false: cooking oil dissolves in water. (a) True (b) False
14. 14.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the kind of sugar (b) the water temperature (c) the amount of water (d) time to dissolve
16. 16.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar stirred well (d) sugar in icy water
17. 17.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
18. 18.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) sugar (c) warm water (d) cold water
19. 19.⚖️ 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 change it (c) we measure it
20. 20.🥄 Which of these dissolves slower? (a) sugar left unstirred (b) powdered sugar (c) sugar stirred well (d) sugar in warm water
21. 21.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
22. 22.True or false: sugar does not dissolve in water. (a) True (b) False
23. 23.🧺 Which of these is needed for the dissolving test? (a) a comb (b) sugar (c) a mirror (d) a balloon
24. 24.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) sugar (c) a balloon (d) a clock or timer
25. 25.⚖️ 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
26. 26.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) a clock or timer (c) two clear glasses (d) cotton wool
27. 27.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
28. 28.⚖️ 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 keep it the same (c) we change it
29. 29.True or false: cotton wool is needed for the dissolving test. (a) False (b) True
30. 30.🛟 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
31. 31.🔍 Which is the odd one out? (a) small pebbles (b) food colour (c) cooking oil (d) sawdust
32. 32.True or false: sugar stirred well dissolves faster. (a) False (b) True
33. 33.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it vanished for ever (c) it became air (d) it spread in the water
34. 34.🔍 Which is the odd one out? (a) cooking oil (b) baking soda (c) glucose powder (d) sugar
35. 35.⚖️ 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) the water temperature (c) time to dissolve
36. 36.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) sugar (c) a magnet (d) two clear glasses
37. 37.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) the sugar turns to salt (c) all of it dissolves (d) the water turns solid
38. 38.⚖️ 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
39. 39.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) two clear glasses (c) a balloon (d) a mirror
40. 40.🥄 Which of these dissolves in water? (a) sawdust (b) cooking oil (c) baking soda (d) small pebbles

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