Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 756 · 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.True or false: cooking oil dissolves in water. (a) False (b) True
2. 2.True or false: a big sugar cube dissolves faster. (a) True (b) False
3. 3.⚖️ 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
4. 4.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a friend who is running (c) nobody needs to (d) a grown-up
5. 5.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
6. 6.🥄 Which of these dissolves slower? (a) sugar stirred well (b) powdered sugar (c) sugar in warm water (d) sugar in icy water
7. 7.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
8. 8.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) powdered sugar (d) a big sugar cube
9. 9.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) the sugar cube (c) neither of them (d) powdered sugar
10. 10.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) sugar (c) honey (d) cotton wool
11. 11.⚖️ 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 change it (c) we measure it
12. 12.🔍 How can you get the salt back from salty water? (a) let the water evaporate (b) keep it in a fridge (c) stir it more (d) add more water
13. 13.🥄 Which of these dissolves in water? (a) sawdust (b) small pebbles (c) food colour (d) sand
14. 14.True or false: a magnet is needed for the dissolving test. (a) False (b) True
15. 15.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
16. 16.True or false: two clear glasses is needed for the dissolving test. (a) False (b) True
17. 17.True or false: sugar in icy water dissolves faster. (a) True (b) False
18. 18.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) a teaspoon (c) two clear glasses (d) a clock or timer
20. 20.True or false: cold water is needed for the dissolving test. (a) True (b) False
21. 21.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) cold water (c) a mirror (d) two clear glasses
22. 22.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
23. 23.⚖️ 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 amount of sugar (d) the amount of water
24. 24.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
25. 25.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a magnet (c) warm water (d) honey
26. 26.🥄 Which of these dissolves in water? (a) sand (b) baking soda (c) chalk powder (d) cooking oil
27. 27.⚖️ 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
28. 28.True or false: honey is needed for the dissolving test. (a) False (b) True
29. 29.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) particles move faster (c) cold water is wet (d) warm water is thicker
30. 30.⚖️ 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 amount of water
31. 31.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) cold water (c) honey (d) a magnet
32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is what we measure. (a) False (b) True
33. 33.True or false: a clock or timer is needed for the dissolving test. (a) False (b) True
34. 34.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
35. 35.🛟 How should you check if the sugar has dissolved? (a) taste it (b) smell it closely (c) look for leftover grains (d) poke it with a finger
36. 36.True or false: a teaspoon is needed for the dissolving test. (a) False (b) True
37. 37.⚖️ 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 amount of water (c) time to dissolve
38. 38.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) not at all (d) faster
39. 39.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
40. 40.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar in icy water (d) sugar stirred well

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