Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 376 · 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 dissolves in water? (a) sand (b) small pebbles (c) baking soda (d) sawdust
2. 2.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) warm water (c) honey (d) a mirror
3. 3.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
4. 4.True or false: table salt dissolves in water. (a) True (b) False
5. 5.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
6. 6.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) sugar (c) cotton wool (d) a teaspoon
7. 7.True or false: powdered sugar dissolves faster. (a) True (b) False
8. 8.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) warm water is thicker (c) sugar likes the dark (d) particles move faster
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 kind of sugar (d) the water temperature
10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we measure it (c) we keep it the same
11. 11.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
12. 12.⚖️ 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
13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we keep it the same (b) we change it (c) we measure it
14. 14.True or false: sand does not dissolve in water. (a) True (b) False
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we change it (b) we keep it the same (c) we measure it
16. 16.🥄 Which of these dissolves in water? (a) sand (b) small pebbles (c) sugar (d) sawdust
17. 17.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
18. 18.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) taste it (c) look for leftover grains (d) smell it closely
19. 19.🔍 Which is the odd one out? (a) food colour (b) baking soda (c) sugar (d) sawdust
20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we change it (b) we keep it the same (c) we measure it
21. 21.True or false: a comb is needed for the dissolving test. (a) False (b) True
22. 22.True or false: sugar in warm water dissolves slower. (a) False (b) True
23. 23.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
24. 24.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the sugar turns to salt (b) the water turns solid (c) some stays undissolved (d) all of it dissolves
25. 25.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) a big sugar cube (d) powdered sugar
26. 26.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
27. 27.True or false: honey is needed for the dissolving test. (a) True (b) False
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 water temperature (d) the stirring
29. 29.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
30. 30.True or false: cooking oil dissolves in water. (a) False (b) True
31. 31.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a magnet (c) warm water (d) a clock or timer
32. 32.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
33. 33.True or false: sugar left unstirred dissolves faster. (a) True (b) False
34. 34.🔍 How can you get the salt back from salty water? (a) stir it more (b) add more water (c) let the water evaporate (d) keep it in a fridge
35. 35.🔍 Sand is stirred into water. What do you see after a while? (a) it settles at the bottom (b) it floats up (c) it dissolves (d) it turns blue
36. 36.🥄 Which of these does not dissolve in water? (a) sugar (b) table salt (c) chalk powder (d) glucose powder
37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is the one thing we change. (a) True (b) False
38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is the one thing we change. (a) False (b) True
39. 39.True or false: sugar left unstirred dissolves slower. (a) False (b) True
40. 40.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) faster (d) not at all

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