Dissolving Experiment Worksheet: Warm and Cold Water

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

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