Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 140 · 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 clock or timer (c) sugar (d) a mirror
2. 2.True or false: sugar dissolves in water. (a) False (b) True
3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of water (b) the water temperature (c) the stirring (d) time to dissolve
4. 4.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cotton wool (b) a clock or timer (c) two clear glasses (d) a teaspoon
5. 5.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
6. 6.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
7. 7.⚖️ 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 sugar (b) the amount of water (c) the water temperature (d) time to dissolve
8. 8.True or false: powdered sugar dissolves slower. (a) False (b) True
9. 9.🔍 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
10. 10.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a comb (c) a teaspoon (d) two clear glasses
11. 11.True or false: a balloon is needed for the dissolving test. (a) False (b) True
12. 12.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
13. 13.🔮 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) some stays undissolved (d) the water turns solid
14. 14.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) False (b) True
16. 16.🔍 Which is the odd one out? (a) sand (b) baking soda (c) food colour (d) table salt
17. 17.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) taste it (c) look for leftover grains (d) smell it closely
18. 18.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) sugar left unstirred (d) powdered sugar
19. 19.True or false: a big sugar cube dissolves slower. (a) False (b) True
20. 20.🥄 Which of these does not dissolve in water? (a) glucose powder (b) sugar (c) baking soda (d) sand
21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we keep it the same (b) we change it (c) we measure it
22. 22.🔍 Which is the odd one out? (a) glucose powder (b) sawdust (c) food colour (d) baking soda
23. 23.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar left unstirred (d) sugar stirred well
24. 24.🥄 Which of these dissolves faster? (a) a big sugar cube (b) powdered sugar (c) sugar left unstirred (d) sugar in icy water
25. 25.True or false: sugar stirred well dissolves slower. (a) True (b) False
26. 26.🥄 Which of these does not dissolve in water? (a) table salt (b) glucose powder (c) sugar (d) chalk powder
27. 27.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) cotton wool (c) honey (d) two clear glasses
28. 28.🥄 Which of these does not dissolve in water? (a) glucose powder (b) food colour (c) small pebbles (d) table salt
29. 29.True or false: cotton wool is not needed for the dissolving test. (a) True (b) False
30. 30.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a balloon (c) cold water (d) a comb
31. 31.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
32. 32.🔍 Which is the odd one out? (a) glucose powder (b) table salt (c) sugar (d) chalk powder
33. 33.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) not at all (c) faster (d) slower
34. 34.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
35. 35.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we measure it (b) we change it (c) we keep it the same
36. 36.True or false: a comb is needed for the dissolving test. (a) True (b) False
37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we keep it the same (b) we measure it (c) we change it
38. 38.True or false: a big sugar cube dissolves faster. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) table salt (b) small pebbles (c) sugar (d) glucose powder
40. 40.🛟 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

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