Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 441 · 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? Which of these is kept the same? (a) time to dissolve (b) the amount of water (c) the water temperature
2. 2.True or false: sand does not dissolve in water. (a) True (b) False
3. 3.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
4. 4.🥄 Which of these does not dissolve in water? (a) small pebbles (b) food colour (c) sugar (d) table salt
5. 5.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) honey (c) two clear glasses (d) cold water
6. 6.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) the same (c) slower (d) not at all
7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we measure it (b) we keep it the same (c) we change it
8. 8.🧺 Which of these is needed for the dissolving test? (a) honey (b) a mirror (c) warm water (d) a magnet
9. 9.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) sugar (c) a teaspoon (d) cotton wool
10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the kind of sugar (b) the amount of water (c) the water temperature (d) the stirring
11. 11.True or false: table salt does not dissolve in water. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) glucose powder (b) table salt (c) baking soda (d) small pebbles
13. 13.True or false: sugar stirred well dissolves faster. (a) True (b) False
14. 14.🔍 Which is the odd one out? (a) sugar (b) chalk powder (c) baking soda (d) glucose powder
15. 15.⚖️ 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) True (b) False
16. 16.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) warm water is thicker (c) cold water is wet (d) sugar likes the dark
17. 17.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) a big sugar cube (d) sugar in warm water
18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is what we measure. (a) False (b) True
19. 19.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
20. 20.⚖️ 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 measure it (c) we keep it the same
21. 21.🥄 Which of these dissolves in water? (a) chalk powder (b) sugar (c) cooking oil (d) sand
22. 22.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a teaspoon (c) a clock or timer (d) a balloon
23. 23.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
24. 24.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) poke it with a finger (c) taste it (d) smell it closely
25. 25.🧺 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
26. 26.⚖️ 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
27. 27.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) a comb (c) cold water (d) a clock or timer
28. 28.🔮 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 sugar turns to salt (c) some stays undissolved (d) the water turns solid
29. 29.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
30. 30.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
31. 31.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
32. 32.🧺 Which of these is needed for the dissolving test? (a) a comb (b) cotton wool (c) a magnet (d) cold water
33. 33.🔍 How can you get the salt back from salty water? (a) stir it more (b) keep it in a fridge (c) add more water (d) let the water evaporate
34. 34.True or false: a clock or timer is needed for the dissolving test. (a) True (b) False
35. 35.True or false: sugar left unstirred dissolves faster. (a) False (b) True
36. 36.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of water (b) the water temperature (c) time to dissolve (d) the amount of sugar
38. 38.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) cold water (c) a clock or timer (d) a comb
39. 39.🔍 Which is the odd one out? (a) cooking oil (b) sawdust (c) baking soda (d) sand
40. 40.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower

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