Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 723 · 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.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is what we measure. (a) False (b) True
2. 2.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar stirred well (c) sugar left unstirred (d) a big sugar cube
3. 3.⚖️ 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 amount of sugar (c) time to dissolve (d) the stirring
4. 4.⚖️ 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 kind of sugar (c) the water temperature (d) the amount of sugar
5. 5.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) two clear glasses (c) honey (d) cold water
6. 6.🔍 Which is the odd one out? (a) food colour (b) baking soda (c) table salt (d) cooking oil
7. 7.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) cold water is wet (c) warm water is thicker (d) sugar likes the dark
8. 8.🔍 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
9. 9.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
10. 10.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) slower (c) the same (d) faster
11. 11.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a magnet (c) warm water (d) cold water
12. 12.True or false: cold water is not needed for the dissolving test. (a) False (b) True
13. 13.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
14. 14.True or false: a teaspoon is needed for the dissolving test. (a) False (b) True
15. 15.True or false: a comb is not needed for the dissolving test. (a) False (b) True
16. 16.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) warm water (c) two clear glasses (d) honey
17. 17.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
18. 18.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
19. 19.True or false: sugar in warm water dissolves faster. (a) True (b) False
20. 20.⚖️ 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
21. 21.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a mirror (c) sugar (d) a clock or timer
22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is what we measure. (a) True (b) False
23. 23.🥄 Which of these dissolves faster? (a) powdered sugar (b) a big sugar cube (c) sugar left unstirred (d) sugar in icy water
24. 24.📘 What do we call water with sugar dissolved in it? (a) a solution (b) a magnet (c) a crystal (d) a rainbow
25. 25.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
26. 26.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a clock or timer (c) a mirror (d) a magnet
27. 27.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
28. 28.⚖️ 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
29. 29.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
30. 30.⚖️ 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 measure it (c) we change it
31. 31.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) cotton wool (c) sugar (d) warm water
32. 32.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
33. 33.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
34. 34.⚖️ 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) False (b) True
35. 35.True or false: sawdust does not dissolve in water. (a) False (b) True
36. 36.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
37. 37.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) sugar in warm water (d) sugar in icy water
38. 38.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) sugar in warm water (d) a big sugar cube
39. 39.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) the youngest child (c) a friend who is running (d) nobody needs to
40. 40.True or false: warm water is not needed for the dissolving test. (a) False (b) True

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