Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 715 · 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? Which of these is kept the same? (a) time to dissolve (b) the amount of water (c) the water temperature
2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of sugar (b) the water temperature (c) time to dissolve
3. 3.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we measure it (b) we keep it the same (c) we change it
5. 5.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
6. 6.⚖️ 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 amount of water (c) the kind of sugar (d) the amount of sugar
7. 7.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
8. 8.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) two clear glasses (c) a magnet (d) sugar
9. 9.🛟 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
10. 10.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) sugar likes the dark (c) particles move faster (d) warm water is thicker
11. 11.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
12. 12.True or false: sugar in icy water dissolves faster. (a) True (b) False
13. 13.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a magnet (c) a solution (d) a rainbow
14. 14.⚖️ 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
15. 15.True or false: chalk powder dissolves in water. (a) False (b) True
16. 16.🔍 Which is the odd one out? (a) sand (b) cooking oil (c) small pebbles (d) baking soda
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is the one thing we change. (a) False (b) True
18. 18.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
19. 19.True or false: a clock or timer is needed for the dissolving test. (a) True (b) False
20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the kind of sugar (b) the amount of sugar (c) the amount of water (d) time to dissolve
21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we keep it the same (b) we measure it (c) we change it
22. 22.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
23. 23.⚖️ 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
24. 24.🔍 How can you get the salt back from salty water? (a) let the water evaporate (b) add more water (c) keep it in a fridge (d) stir it more
25. 25.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we keep it the same (b) we measure it (c) we change it
26. 26.True or false: table salt dissolves in water. (a) False (b) True
27. 27.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) warm water (c) a teaspoon (d) a comb
28. 28.🔍 Which is the odd one out? (a) sand (b) food colour (c) chalk powder (d) sawdust
29. 29.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) slower (c) the same (d) not at all
30. 30.True or false: honey is not needed for the dissolving test. (a) True (b) False
31. 31.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) a clock or timer (c) cold water (d) sugar
32. 32.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
33. 33.True or false: sugar is needed for the dissolving test. (a) False (b) True
34. 34.⚖️ 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 kind of sugar (c) the water temperature
35. 35.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a balloon (c) warm water (d) sugar
36. 36.True or false: warm water is needed for the dissolving test. (a) False (b) True
37. 37.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) the youngest child (c) a grown-up (d) nobody needs to
38. 38.True or false: a comb is needed for the dissolving test. (a) False (b) True
39. 39.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) sugar left unstirred (d) powdered sugar
40. 40.True or false: a mirror is needed for the dissolving test. (a) False (b) True

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