Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 524 · 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: a clock or timer is needed for the dissolving test. (a) False (b) True
2. 2.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) powdered sugar (d) sugar in icy water
3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we change it (b) we keep it the same (c) we measure it
4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we change it (b) we keep it the same (c) we measure it
5. 5.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
6. 6.🥄 Which of these dissolves in water? (a) cooking oil (b) chalk powder (c) sand (d) glucose powder
7. 7.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a balloon (c) sugar (d) a teaspoon
8. 8.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a teaspoon (c) honey (d) a magnet
9. 9.True or false: cotton wool is needed for the dissolving test. (a) True (b) False
10. 10.True or false: sawdust dissolves in water. (a) True (b) False
11. 11.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) warm water (c) a clock or timer (d) cotton wool
12. 12.⚖️ 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) True (b) False
13. 13.🔍 How can you get the salt back from salty water? (a) let the water evaporate (b) keep it in a fridge (c) stir it more (d) add more water
14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) time to dissolve (b) the amount of water (c) the kind of sugar (d) the water temperature
15. 15.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) two clear glasses (c) a teaspoon (d) honey
16. 16.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) the same (c) not at all (d) slower
17. 17.🔍 Which is the odd one out? (a) sawdust (b) sand (c) baking soda (d) cooking oil
18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) True (b) False
19. 19.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) the sugar turns to salt (c) some stays undissolved (d) all of it dissolves
20. 20.🛟 How should you check if the sugar has dissolved? (a) taste it (b) poke it with a finger (c) smell it closely (d) look for leftover grains
21. 21.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar in icy water (d) sugar in warm water
22. 22.🥄 Which of these dissolves slower? (a) sugar stirred well (b) powdered sugar (c) sugar in warm water (d) sugar in icy water
23. 23.🧺 Which of these is needed for the dissolving test? (a) a comb (b) warm water (c) cotton wool (d) a balloon
24. 24.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
25. 25.True or false: a balloon is needed for the dissolving test. (a) False (b) True
26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is the one thing we change. (a) True (b) False
27. 27.⚖️ 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
28. 28.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a comb (c) a clock or timer (d) sugar
29. 29.True or false: two clear glasses is needed for the dissolving test. (a) False (b) True
30. 30.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
31. 31.⚖️ 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
32. 32.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) two clear glasses (c) sugar (d) honey
33. 33.True or false: baking soda does not dissolve in water. (a) False (b) True
34. 34.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
35. 35.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) neither of them (c) powdered sugar (d) the sugar cube
36. 36.⚖️ 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
37. 37.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
38. 38.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
39. 39.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a mirror (c) two clear glasses (d) a clock or timer
40. 40.True or false: sugar in icy water dissolves slower. (a) True (b) False

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