Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 849 · 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? What do we do with “the water temperature”? (a) we keep it the same (b) we change it (c) we measure it
2. 2.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) nobody needs to (c) a friend who is running (d) a grown-up
3. 3.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
4. 4.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
5. 5.True or false: cooking oil dissolves in water. (a) True (b) False
6. 6.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a clock or timer (c) warm water (d) a balloon
7. 7.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) slower (c) the same (d) faster
8. 8.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is kept the same. (a) False (b) True
9. 9.🥄 Which of these dissolves slower? (a) sugar in icy water (b) powdered sugar (c) sugar stirred well (d) sugar in warm water
10. 10.True or false: sugar does not dissolve in water. (a) True (b) False
11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of sugar (b) the kind of sugar (c) time to dissolve (d) the water temperature
12. 12.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) poke it with a finger (c) look for leftover grains (d) taste it
13. 13.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a comb (c) cotton wool (d) a teaspoon
14. 14.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) a clock or timer (c) cold water (d) a balloon
15. 15.⚖️ 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 water temperature (c) the amount of sugar
16. 16.🔍 Which is the odd one out? (a) glucose powder (b) cooking oil (c) sand (d) chalk powder
17. 17.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
18. 18.True or false: sugar in warm water dissolves faster. (a) True (b) False
19. 19.🥄 Which of these dissolves faster? (a) sugar in warm water (b) sugar in icy water (c) sugar left unstirred (d) a big sugar cube
20. 20.🔍 How can you get the salt back from salty water? (a) let the water evaporate (b) keep it in a fridge (c) add more water (d) stir it more
21. 21.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it floats up (c) it settles at the bottom (d) it dissolves
22. 22.True or false: food colour dissolves in water. (a) False (b) True
23. 23.⚖️ 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 stirring (c) time to dissolve
24. 24.🔍 Which is the odd one out? (a) food colour (b) baking soda (c) chalk powder (d) table salt
25. 25.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) the sugar cube (c) both the same (d) neither of them
26. 26.True or false: powdered sugar dissolves faster. (a) False (b) True
27. 27.⚖️ 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 measure it (c) we keep it the same
28. 28.🥄 Which of these dissolves in water? (a) sand (b) baking soda (c) small pebbles (d) chalk powder
29. 29.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
30. 30.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a clock or timer (c) honey (d) sugar
31. 31.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) cold water (c) honey (d) a balloon
32. 32.🔍 Which is the odd one out? (a) glucose powder (b) sugar (c) baking soda (d) sawdust
33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we measure it (b) we keep it the same (c) we change it
34. 34.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
35. 35.🔍 Which is the odd one out? (a) table salt (b) sugar (c) glucose powder (d) small pebbles
36. 36.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
37. 37.🥄 Which of these dissolves in water? (a) cooking oil (b) sugar (c) sand (d) chalk powder
38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is the one thing we change. (a) False (b) True
39. 39.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it sank as sand (c) it vanished for ever (d) it spread in the water
40. 40.True or false: table salt dissolves in water. (a) True (b) False

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