Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 585 · 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.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) both the same (c) neither of them (d) the sugar cube
2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of sugar (b) time to dissolve (c) the water temperature (d) the kind of sugar
3. 3.🥄 Which of these dissolves in water? (a) sawdust (b) chalk powder (c) cooking oil (d) food colour
4. 4.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) the water turns solid (c) some stays undissolved (d) the sugar turns to salt
5. 5.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) slower (c) faster (d) the same
6. 6.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
7. 7.🛟 How should you check if the sugar has dissolved? (a) taste it (b) look for leftover grains (c) smell it closely (d) poke it with a finger
8. 8.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
9. 9.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
10. 10.⚖️ 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
11. 11.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
12. 12.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we change it (b) we keep it the same (c) we measure it
13. 13.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a comb (c) a teaspoon (d) warm water
14. 14.True or false: a clock or timer is needed for the dissolving test. (a) True (b) False
15. 15.True or false: baking soda dissolves in water. (a) False (b) True
16. 16.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
17. 17.🔍 Which is the odd one out? (a) sugar (b) sand (c) glucose powder (d) table salt
18. 18.🥄 Which of these dissolves in water? (a) chalk powder (b) sawdust (c) sand (d) glucose powder
19. 19.True or false: sugar left unstirred dissolves slower. (a) False (b) True
20. 20.True or false: sugar in warm water dissolves slower. (a) True (b) False
21. 21.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar left unstirred (d) sugar in warm water
22. 22.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a balloon (b) two clear glasses (c) warm water (d) sugar
23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) False (b) True
24. 24.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) a friend who is running (c) nobody needs to (d) the youngest child
25. 25.True or false: cooking oil does not dissolve in water. (a) True (b) False
26. 26.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) powdered sugar (d) sugar in icy water
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 measure it (b) we change it (c) we keep it the same
28. 28.🔍 Which is the odd one out? (a) sand (b) cooking oil (c) chalk powder (d) food colour
29. 29.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) cold water is wet (c) particles move faster (d) sugar likes the dark
30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the water temperature (b) the kind of sugar (c) the amount of water (d) the amount of sugar
31. 31.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it spread in the water (c) it sank as sand (d) it vanished for ever
32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we keep it the same (b) we change it (c) we measure it
33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the water temperature (b) the stirring (c) time to dissolve
34. 34.True or false: cold water is not needed for the dissolving test. (a) False (b) True
35. 35.🥄 Which of these dissolves in water? (a) sugar (b) cooking oil (c) sand (d) small pebbles
36. 36.🔍 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
37. 37.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
38. 38.True or false: a teaspoon is needed for the dissolving test. (a) True (b) False
39. 39.⚖️ 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) time to dissolve (c) the water temperature
40. 40.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a magnet (c) a rainbow (d) a solution

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