Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 291 · 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.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) two clear glasses (c) warm water (d) a mirror
2. 2.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we keep it the same (b) we measure it (c) we change it
4. 4.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
5. 5.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we change it (b) we measure it (c) we keep it the same
6. 6.🧺 Which of these is needed for the dissolving test? (a) a comb (b) honey (c) a balloon (d) a teaspoon
7. 7.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
8. 8.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
9. 9.True or false: sugar is needed for the dissolving test. (a) False (b) True
10. 10.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
11. 11.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) powdered sugar (c) neither of them (d) both the same
12. 12.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) the water turns solid (c) all of it dissolves (d) the sugar turns to salt
13. 13.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
14. 14.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
15. 15.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) the same (c) faster (d) slower
16. 16.True or false: powdered sugar dissolves faster. (a) False (b) True
17. 17.🔍 Which is the odd one out? (a) baking soda (b) sand (c) sugar (d) food colour
18. 18.⚖️ 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
19. 19.⚖️ 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) the amount of water (c) the amount of sugar (d) time to dissolve
20. 20.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
21. 21.⚖️ 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
22. 22.True or false: a clock or timer is needed for the dissolving test. (a) False (b) True
23. 23.📘 What do we call water with sugar dissolved in it? (a) a solution (b) a magnet (c) a rainbow (d) a crystal
24. 24.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we measure it (b) we change it (c) we keep it the same
25. 25.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) the youngest child (c) nobody needs to (d) a grown-up
26. 26.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) a big sugar cube (d) sugar stirred well
27. 27.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
28. 28.🥄 Which of these does not dissolve in water? (a) small pebbles (b) glucose powder (c) sugar (d) baking soda
29. 29.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) a clock or timer (c) sugar (d) a teaspoon
30. 30.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
31. 31.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) honey (c) a teaspoon (d) sugar
32. 32.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a comb (c) a balloon (d) sugar
33. 33.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) let the water evaporate (c) add more water (d) stir it more
34. 34.🧺 Which of these is needed for the dissolving test? (a) two clear glasses (b) a comb (c) a balloon (d) honey
35. 35.🥄 Which of these dissolves slower? (a) sugar in warm water (b) a big sugar cube (c) powdered sugar (d) sugar stirred well
36. 36.True or false: sugar stirred well dissolves faster. (a) False (b) True
37. 37.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) warm water (c) honey (d) a magnet
38. 38.True or false: sugar left unstirred dissolves slower. (a) False (b) True
39. 39.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
40. 40.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) two clear glasses (c) a comb (d) cold water

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