Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 158 · 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.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) all of it dissolves (c) the sugar turns to salt (d) some stays undissolved
2. 2.🥄 Which of these dissolves in water? (a) small pebbles (b) sand (c) glucose powder (d) sawdust
3. 3.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a balloon (b) warm water (c) a teaspoon (d) a clock or timer
4. 4.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) the youngest child (c) a friend who is running (d) a grown-up
5. 5.🥄 Which of these dissolves slower? (a) powdered sugar (b) a big sugar cube (c) sugar stirred well (d) sugar in warm water
6. 6.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
7. 7.⚖️ 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 keep it the same (c) we change it
8. 8.True or false: sugar in icy water dissolves faster. (a) True (b) False
9. 9.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) time to dissolve (b) the amount of water (c) the stirring (d) the water temperature
10. 10.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
11. 11.🔍 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
12. 12.🛟 How should you check if the sugar has dissolved? (a) taste it (b) poke it with a finger (c) look for leftover grains (d) smell it closely
13. 13.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
14. 14.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a teaspoon (c) cold water (d) a comb
15. 15.True or false: honey is needed for the dissolving test. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) glucose powder (b) baking soda (c) table salt (d) small pebbles
17. 17.True or false: sand dissolves in water. (a) True (b) False
18. 18.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) warm water (c) a mirror (d) cold water
19. 19.True or false: glucose powder does not dissolve in water. (a) False (b) True
20. 20.True or false: powdered sugar dissolves slower. (a) True (b) False
21. 21.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) two clear glasses (c) honey (d) a teaspoon
22. 22.True or false: baking soda does not dissolve in water. (a) True (b) False
23. 23.True or false: a big sugar cube dissolves faster. (a) True (b) False
24. 24.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
25. 25.⚖️ 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 amount of sugar
26. 26.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) not at all (d) faster
27. 27.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) sugar (c) a magnet (d) a teaspoon
28. 28.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
29. 29.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
30. 30.True or false: small pebbles does not dissolve in water. (a) False (b) True
31. 31.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar in warm water (d) sugar in icy water
32. 32.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a mirror (c) cold water (d) a teaspoon
33. 33.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) cold water is wet (c) particles move faster (d) warm water is thicker
34. 34.🧺 Which of these is needed for the dissolving test? (a) warm water (b) a magnet (c) a mirror (d) honey
35. 35.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) False (b) True
36. 36.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) neither of them (c) powdered sugar (d) both the same
37. 37.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a balloon (c) cold water (d) two clear glasses
38. 38.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
39. 39.⚖️ 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 amount of water (c) time to dissolve (d) the water temperature
40. 40.True or false: table salt does not dissolve in water. (a) False (b) True

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