Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 205 · 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 does not dissolve in water? (a) cooking oil (b) sugar (c) glucose powder (d) baking soda
2. 2.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) two clear glasses (c) a balloon (d) a clock or timer
3. 3.True or false: a big sugar cube dissolves faster. (a) False (b) True
4. 4.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) faster (c) the same (d) not at all
5. 5.🛟 How should you check if the sugar has dissolved? (a) taste it (b) look for leftover grains (c) poke it with a finger (d) smell it closely
6. 6.True or false: sugar in warm water dissolves faster. (a) False (b) True
7. 7.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) nobody needs to (c) a grown-up (d) the youngest child
8. 8.True or false: a teaspoon is not needed for the dissolving test. (a) True (b) False
9. 9.⚖️ 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 measure it (c) we change it
10. 10.⚖️ 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 change it (c) we keep it the same
11. 11.⚖️ 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) True (b) False
12. 12.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
13. 13.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) sugar (c) cotton wool (d) a teaspoon
14. 14.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the stirring (b) time to dissolve (c) the water temperature
16. 16.⚖️ 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) True (b) False
17. 17.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
18. 18.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) sugar in warm water (d) a big sugar cube
19. 19.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
20. 20.🥄 Which of these dissolves in water? (a) small pebbles (b) cooking oil (c) chalk powder (d) food colour
21. 21.🔍 Which is the odd one out? (a) small pebbles (b) sand (c) sugar (d) chalk powder
22. 22.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) the water turns solid (c) the sugar turns to salt (d) some stays undissolved
23. 23.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
24. 24.🔍 How can you get the salt back from salty water? (a) add more water (b) keep it in a fridge (c) let the water evaporate (d) stir it more
25. 25.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) True (b) False
26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we change it (b) we keep it the same (c) we measure it
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 measure it (b) we keep it the same (c) we change it
28. 28.⚖️ 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 amount of water (c) the stirring (d) the kind of sugar
29. 29.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
30. 30.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) powdered sugar (c) neither of them (d) the sugar cube
31. 31.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a comb (b) sugar (c) two clear glasses (d) a teaspoon
32. 32.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
33. 33.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) powdered sugar (d) sugar in icy water
34. 34.🧺 Which of these is needed for the dissolving test? (a) a clock or timer (b) a comb (c) honey (d) a balloon
35. 35.🧺 Which of these is needed for the dissolving test? (a) a teaspoon (b) a comb (c) cotton wool (d) a balloon
36. 36.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
37. 37.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a mirror (c) warm water (d) a clock or timer
38. 38.True or false: cotton wool is needed for the dissolving test. (a) True (b) False
39. 39.🥄 Which of these dissolves faster? (a) powdered sugar (b) a big sugar cube (c) sugar left unstirred (d) sugar in icy water
40. 40.True or false: powdered sugar dissolves slower. (a) True (b) False

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