Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 115 · 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.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) True (b) False
3. 3.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
4. 4.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
5. 5.⚖️ 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
6. 6.True or false: baking soda dissolves in water. (a) False (b) True
7. 7.⚖️ 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 water temperature (d) time to dissolve
8. 8.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) cotton wool (c) cold water (d) a mirror
9. 9.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) warm water (c) a mirror (d) a teaspoon
10. 10.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) powdered sugar (d) sugar in icy water
11. 11.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) nobody needs to (c) a grown-up (d) a friend who is running
12. 12.🧺 Which of these is not needed for the dissolving test? (a) cotton wool (b) sugar (c) warm water (d) a teaspoon
13. 13.🛟 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
14. 14.True or false: sugar stirred well dissolves slower. (a) True (b) False
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we change it (b) we keep it the same (c) we measure it
16. 16.🥄 Which of these does not dissolve in water? (a) glucose powder (b) chalk powder (c) food colour (d) table salt
17. 17.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) two clear glasses (c) warm water (d) honey
18. 18.⚖️ 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) time to dissolve (c) the water temperature
19. 19.⚖️ 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
20. 20.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
21. 21.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar stirred well (c) a big sugar cube (d) sugar in icy water
22. 22.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cotton wool (b) a clock or timer (c) sugar (d) cold water
23. 23.🔍 Which is the odd one out? (a) chalk powder (b) small pebbles (c) baking soda (d) sawdust
24. 24.True or false: two clear glasses is needed for the dissolving test. (a) False (b) True
25. 25.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) add more water (c) stir it more (d) let the water evaporate
26. 26.🔍 Which is the odd one out? (a) sawdust (b) food colour (c) baking soda (d) glucose powder
27. 27.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
28. 28.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
29. 29.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) cold water is wet (c) sugar likes the dark (d) particles move faster
30. 30.🔍 Sand is stirred into water. What do you see after a while? (a) it settles at the bottom (b) it dissolves (c) it floats up (d) it turns blue
31. 31.True or false: warm water is not needed for the dissolving test. (a) True (b) False
32. 32.True or false: chalk powder dissolves in water. (a) False (b) True
33. 33.🥄 Which of these dissolves in water? (a) chalk powder (b) small pebbles (c) glucose powder (d) cooking oil
34. 34.🔍 Which is the odd one out? (a) table salt (b) glucose powder (c) food colour (d) sand
35. 35.True or false: sawdust does not dissolve in water. (a) False (b) True
36. 36.🥄 Which of these dissolves in water? (a) chalk powder (b) food colour (c) small pebbles (d) sand
37. 37.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
38. 38.⚖️ 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) time to dissolve (c) the stirring
39. 39.True or false: sugar dissolves in water. (a) False (b) True
40. 40.True or false: sand dissolves in water. (a) True (b) False

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