Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 199 · 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: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) faster (d) not at all
2. 2.⚖️ 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) time to dissolve (c) the kind of sugar (d) the amount of water
3. 3.True or false: chalk powder does not dissolve in water. (a) False (b) True
4. 4.🥄 Which of these does not dissolve in water? (a) sawdust (b) food colour (c) baking soda (d) sugar
5. 5.⚖️ 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
6. 6.🥄 Which of these does not dissolve in water? (a) sugar (b) food colour (c) baking soda (d) chalk powder
7. 7.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
8. 8.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
9. 9.True or false: a magnet is needed for the dissolving test. (a) True (b) False
10. 10.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) a clock or timer (c) two clear glasses (d) warm water
11. 11.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) powdered sugar (d) sugar left unstirred
12. 12.True or false: a teaspoon is needed for the dissolving test. (a) True (b) False
13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we change it (b) we measure it (c) we keep it the same
14. 14.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a solution (c) a rainbow (d) a crystal
15. 15.🔍 How can you get the salt back from salty water? (a) let the water evaporate (b) stir it more (c) add more water (d) keep it in a fridge
16. 16.⚖️ 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
17. 17.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
18. 18.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) taste it (c) smell it closely (d) poke it with a finger
19. 19.True or false: powdered sugar dissolves slower. (a) False (b) True
20. 20.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
21. 21.True or false: cold water is not needed for the dissolving test. (a) True (b) False
22. 22.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
23. 23.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
24. 24.⚖️ 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 change it (c) we measure it
25. 25.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
26. 26.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
27. 27.🥄 Which of these dissolves in water? (a) small pebbles (b) chalk powder (c) sand (d) baking soda
28. 28.🧺 Which of these is needed for the dissolving test? (a) sugar (b) cotton wool (c) a comb (d) a magnet
29. 29.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of water (b) time to dissolve (c) the stirring (d) the kind of sugar
30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is the one thing we change. (a) False (b) True
31. 31.True or false: cooking oil does not dissolve in water. (a) False (b) True
32. 32.True or false: baking soda does not dissolve in water. (a) True (b) False
33. 33.True or false: cotton wool is needed for the dissolving test. (a) True (b) False
34. 34.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) a friend who is running (c) the youngest child (d) nobody needs to
35. 35.⚖️ 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
36. 36.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) sugar (c) two clear glasses (d) a comb
37. 37.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) sugar (c) a magnet (d) cold water
38. 38.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) particles move faster (c) sugar likes the dark (d) warm water is thicker
39. 39.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
40. 40.🥄 Which of these does not dissolve in water? (a) table salt (b) baking soda (c) sugar (d) sand

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