Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 954 · 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 is needed for the dissolving test? (a) honey (b) warm water (c) a magnet (d) a comb
2. 2.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) cotton wool (c) warm water (d) two clear glasses
3. 3.🥄 Which of these does not dissolve in water? (a) cooking oil (b) table salt (c) baking soda (d) sugar
4. 4.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
5. 5.🥄 Which of these does not dissolve in water? (a) baking soda (b) small pebbles (c) food colour (d) table salt
6. 6.⚖️ 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 stirring (c) the kind of sugar (d) the amount of water
7. 7.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
8. 8.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) taste it (c) look for leftover grains (d) poke it with a finger
9. 9.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
10. 10.True or false: table salt dissolves in water. (a) False (b) True
11. 11.True or false: sugar left unstirred dissolves slower. (a) True (b) False
12. 12.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
13. 13.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
14. 14.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) cotton wool (c) a mirror (d) sugar
15. 15.⚖️ 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
16. 16.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) the sugar turns to salt (c) the water turns solid (d) all of it dissolves
17. 17.True or false: glucose powder does not dissolve in water. (a) False (b) True
18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we measure it (b) we keep it the same (c) we change it
19. 19.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
20. 20.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) two clear glasses (c) sugar (d) warm water
21. 21.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it dissolves (c) it settles at the bottom (d) it floats up
22. 22.🥄 Which of these dissolves in water? (a) table salt (b) sawdust (c) cooking oil (d) small pebbles
23. 23.True or false: a teaspoon is needed for the dissolving test. (a) True (b) False
24. 24.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
25. 25.⚖️ 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 keep it the same (c) we measure it
26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the kind of sugar (b) the amount of water (c) the water temperature (d) time to dissolve
27. 27.🔍 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
28. 28.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a grown-up (c) the youngest child (d) a friend who is running
29. 29.🔍 Which is the odd one out? (a) sugar (b) small pebbles (c) glucose powder (d) baking soda
30. 30.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) particles move faster (c) cold water is wet (d) sugar likes the dark
31. 31.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a teaspoon (c) cold water (d) a mirror
32. 32.🔍 Which is the odd one out? (a) small pebbles (b) sawdust (c) table salt (d) sand
33. 33.🥄 Which of these dissolves slower? (a) sugar in icy water (b) sugar stirred well (c) sugar in warm water (d) powdered sugar
34. 34.True or false: table salt does not dissolve in water. (a) True (b) False
35. 35.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a balloon (b) cold water (c) a teaspoon (d) sugar
36. 36.🔍 Which is the odd one out? (a) glucose powder (b) baking soda (c) table salt (d) sand
37. 37.True or false: sugar in warm water dissolves slower. (a) False (b) True
38. 38.🥄 Which of these dissolves in water? (a) small pebbles (b) sawdust (c) sugar (d) sand
39. 39.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
40. 40.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed

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