Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 607 · 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? True or false: the kind of sugar is the one thing we change. (a) True (b) False
2. 2.🧺 Which of these is not needed for the dissolving test? (a) a magnet (b) a clock or timer (c) warm water (d) cold water
3. 3.True or false: sugar stirred well dissolves slower. (a) False (b) True
4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of water (b) the water temperature (c) time to dissolve
5. 5.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) sugar (c) a comb (d) cold water
6. 6.True or false: a clock or timer is not needed for the dissolving test. (a) True (b) False
7. 7.⚖️ 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) time to dissolve (d) the kind of sugar
8. 8.True or false: a big sugar cube dissolves faster. (a) True (b) False
9. 9.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is kept the same. (a) False (b) True
10. 10.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar in icy water (d) powdered sugar
11. 11.True or false: sugar stirred well dissolves faster. (a) True (b) False
12. 12.True or false: a teaspoon is needed for the dissolving test. (a) True (b) False
13. 13.🔍 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
14. 14.🥄 Which of these dissolves in water? (a) small pebbles (b) glucose powder (c) sand (d) sawdust
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we keep it the same (b) we change it (c) we measure it
16. 16.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
17. 17.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) sugar (c) cold water (d) a clock or timer
18. 18.⚖️ 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
19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) sugar (c) two clear glasses (d) cotton wool
20. 20.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
21. 21.🔮 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
22. 22.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) two clear glasses (c) a balloon (d) a clock or timer
23. 23.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
24. 24.🔍 Which is the odd one out? (a) baking soda (b) cooking oil (c) glucose powder (d) sugar
25. 25.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it dissolves (c) it floats up (d) it settles at the bottom
26. 26.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
27. 27.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a rainbow (c) a magnet (d) a solution
28. 28.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) nobody needs to (c) the youngest child (d) a friend who is running
29. 29.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
30. 30.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
31. 31.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) faster (d) not at all
32. 32.🥄 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
33. 33.🔍 Which is the odd one out? (a) sugar (b) glucose powder (c) sawdust (d) baking soda
34. 34.True or false: small pebbles does not dissolve in water. (a) True (b) False
35. 35.⚖️ 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 stirring (c) the water temperature
36. 36.⚖️ 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
37. 37.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
38. 38.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) the sugar turns to salt (c) some stays undissolved (d) all of it dissolves
39. 39.🧺 Which of these is needed for the dissolving test? (a) a clock or timer (b) honey (c) a magnet (d) a comb
40. 40.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) two clear glasses (c) a comb (d) a clock or timer

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