Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 759 · 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.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar stirred well (d) sugar in icy water
2. 2.⚖️ 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
3. 3.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in warm water (c) sugar left unstirred (d) powdered sugar
4. 4.⚖️ 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
5. 5.🔍 Which is the odd one out? (a) table salt (b) sand (c) cooking oil (d) sawdust
6. 6.True or false: cold water is not needed for the dissolving test. (a) True (b) False
7. 7.True or false: a big sugar cube dissolves slower. (a) True (b) False
8. 8.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it turns blue (c) it dissolves (d) it settles at the bottom
9. 9.🧺 Which of these is needed for the dissolving test? (a) a comb (b) cotton wool (c) two clear glasses (d) a mirror
10. 10.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar stirred well (c) a big sugar cube (d) sugar left unstirred
11. 11.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) look for leftover grains (c) smell it closely (d) taste it
12. 12.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
13. 13.🔍 Which is the odd one out? (a) glucose powder (b) food colour (c) sawdust (d) sugar
14. 14.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) False (b) True
16. 16.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) False (b) True
18. 18.🧺 Do we need sugar 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) two clear glasses (b) sugar (c) a balloon (d) cold water
20. 20.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
21. 21.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) the youngest child (c) nobody needs to (d) a friend who is running
22. 22.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
23. 23.🧺 Which of these is not needed for the dissolving test? (a) a magnet (b) sugar (c) cold water (d) two clear glasses
24. 24.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) powdered sugar (c) the sugar cube (d) neither of them
25. 25.⚖️ 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
26. 26.⚖️ 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) False (b) True
27. 27.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) slower (c) the same (d) faster
28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we measure it (b) we change it (c) we keep it the same
29. 29.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) time to dissolve (b) the water temperature (c) the kind of sugar (d) the amount of sugar
30. 30.🔍 Which is the odd one out? (a) small pebbles (b) baking soda (c) sand (d) sawdust
31. 31.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) False (b) True
32. 32.🔍 How can you get the salt back from salty water? (a) stir it more (b) keep it in a fridge (c) let the water evaporate (d) add more water
33. 33.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
34. 34.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
35. 35.🔍 Which is the odd one out? (a) baking soda (b) chalk powder (c) glucose powder (d) table salt
36. 36.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
37. 37.⚖️ 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) True (b) False
38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we keep it the same (c) we measure it
39. 39.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
40. 40.True or false: powdered sugar dissolves faster. (a) False (b) True

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