Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 709 · 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.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
2. 2.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
3. 3.🥄 Which of these dissolves in water? (a) baking soda (b) sand (c) sawdust (d) cooking oil
4. 4.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
5. 5.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it dissolves (c) it settles at the bottom (d) it turns blue
6. 6.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) powdered sugar (d) a big sugar cube
7. 7.🔍 Which is the odd one out? (a) table salt (b) baking soda (c) sawdust (d) sugar
8. 8.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a mirror (b) a clock or timer (c) warm water (d) sugar
9. 9.🔍 Which is the odd one out? (a) small pebbles (b) glucose powder (c) chalk powder (d) sand
10. 10.🔍 Which is the odd one out? (a) food colour (b) chalk powder (c) sawdust (d) small pebbles
11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we measure it (b) we keep it the same (c) we change it
12. 12.True or false: a teaspoon is needed for the dissolving test. (a) False (b) True
13. 13.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar stirred well (c) sugar in icy water (d) a big sugar cube
14. 14.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a clock or timer (c) a magnet (d) sugar
15. 15.🔍 Which is the odd one out? (a) table salt (b) sugar (c) chalk powder (d) baking soda
16. 16.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) faster (c) not at all (d) slower
17. 17.🔍 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
18. 18.True or false: sugar left unstirred dissolves slower. (a) True (b) False
19. 19.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
20. 20.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) particles move faster (c) sugar likes the dark (d) warm water is thicker
21. 21.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a crystal (c) a magnet (d) a solution
22. 22.True or false: cooking oil does not dissolve in water. (a) True (b) False
23. 23.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) sugar in icy water (d) sugar in warm water
24. 24.True or false: sugar in warm water dissolves slower. (a) False (b) True
25. 25.True or false: a clock or timer is needed for the dissolving test. (a) False (b) True
26. 26.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a grown-up (c) a friend who is running (d) the youngest child
27. 27.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) both the same (c) powdered sugar (d) neither of them
28. 28.⚖️ 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 measure it (c) we keep it the same
29. 29.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
30. 30.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a mirror (c) warm water (d) cold water
31. 31.🛟 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
32. 32.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a teaspoon (c) two clear glasses (d) a comb
33. 33.🥄 Which of these does not dissolve in water? (a) baking soda (b) food colour (c) sand (d) table salt
34. 34.⚖️ 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
35. 35.⚖️ 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 keep it the same (c) we measure it
36. 36.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) False (b) True
37. 37.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) warm water (c) honey (d) cold water
38. 38.🔍 Which is the odd one out? (a) sugar (b) small pebbles (c) chalk powder (d) sawdust
39. 39.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
40. 40.🔍 Which is the odd one out? (a) table salt (b) food colour (c) sand (d) sugar

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