Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 449 · 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 clock or timer (b) warm water (c) a balloon (d) sugar
2. 2.🥄 Which of these dissolves in water? (a) sawdust (b) glucose powder (c) chalk powder (d) cooking oil
3. 3.⚖️ 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 sugar (c) the water temperature (d) the kind of sugar
4. 4.🔍 Which is the odd one out? (a) food colour (b) sugar (c) table salt (d) sawdust
5. 5.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) cold water (c) a comb (d) cotton wool
6. 6.🥄 Which of these does not dissolve in water? (a) small pebbles (b) food colour (c) table salt (d) baking soda
7. 7.True or false: sugar dissolves in water. (a) True (b) False
8. 8.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it vanished for ever (c) it sank as sand (d) it spread in the water
9. 9.True or false: table salt dissolves in water. (a) False (b) True
10. 10.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
11. 11.True or false: honey is needed for the dissolving test. (a) False (b) True
12. 12.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
13. 13.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
14. 14.True or false: sugar in icy water dissolves slower. (a) True (b) False
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is kept the same. (a) True (b) False
16. 16.True or false: chalk powder dissolves in water. (a) True (b) False
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the water temperature (b) the kind of sugar (c) time to dissolve (d) the amount of sugar
18. 18.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) a grown-up (c) the youngest child (d) nobody needs to
19. 19.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) a big sugar cube (d) powdered sugar
20. 20.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) poke it with a finger (c) taste it (d) look for leftover grains
21. 21.🥄 Which of these does not dissolve in water? (a) cooking oil (b) baking soda (c) sugar (d) table salt
22. 22.True or false: a big sugar cube dissolves faster. (a) True (b) False
23. 23.True or false: powdered sugar dissolves slower. (a) False (b) True
24. 24.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) the water turns solid (c) the sugar turns to salt (d) all of it dissolves
25. 25.🥄 Which of these dissolves in water? (a) sand (b) sawdust (c) cooking oil (d) baking soda
26. 26.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) two clear glasses (c) warm water (d) honey
27. 27.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) two clear glasses (c) sugar (d) a balloon
28. 28.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) two clear glasses (c) sugar (d) a comb
29. 29.🔍 How can you get the salt back from salty water? (a) add more water (b) let the water evaporate (c) keep it in a fridge (d) stir it more
30. 30.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a rainbow (c) a crystal (d) a solution
31. 31.🥄 Which of these does not dissolve in water? (a) baking soda (b) sugar (c) food colour (d) sawdust
32. 32.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
33. 33.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) powdered sugar (c) a big sugar cube (d) sugar in icy water
34. 34.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) not at all (c) faster (d) the same
35. 35.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a comb (b) warm water (c) a clock or timer (d) two clear glasses
36. 36.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) True (b) False
37. 37.⚖️ 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
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 measure it (c) we keep it the same
39. 39.True or false: warm water is needed for the dissolving test. (a) False (b) True
40. 40.⚖️ 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 keep it the same (c) we change it

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