Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 639 · 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.🔍 How can you get the salt back from salty water? (a) add more water (b) keep it in a fridge (c) stir it more (d) let the water evaporate
2. 2.True or false: glucose powder does not dissolve in water. (a) True (b) False
3. 3.🥄 Which of these does not dissolve in water? (a) sawdust (b) glucose powder (c) table salt (d) sugar
4. 4.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
5. 5.⚖️ 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
6. 6.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
7. 7.⚖️ 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
8. 8.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) warm water (c) honey (d) sugar
9. 9.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) neither of them (c) the sugar cube (d) powdered sugar
10. 10.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a mirror (c) warm water (d) a teaspoon
11. 11.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) sugar (c) a teaspoon (d) a balloon
12. 12.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is what we measure. (a) True (b) False
13. 13.True or false: table salt does not dissolve in water. (a) True (b) False
14. 14.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
15. 15.🔍 Which is the odd one out? (a) small pebbles (b) sugar (c) glucose powder (d) food colour
16. 16.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
17. 17.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) powdered sugar (d) a big sugar cube
18. 18.True or false: a big sugar cube dissolves faster. (a) False (b) True
19. 19.🥄 Which of these does not dissolve in water? (a) table salt (b) food colour (c) baking soda (d) cooking oil
20. 20.True or false: sugar is not needed for the dissolving test. (a) False (b) True
21. 21.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) False (b) True
23. 23.⚖️ 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 water
24. 24.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we keep it the same (b) we measure it (c) we change it
25. 25.🔍 Which is the odd one out? (a) baking soda (b) food colour (c) chalk powder (d) sugar
26. 26.🧺 Which of these is not needed for the dissolving test? (a) a mirror (b) a clock or timer (c) a teaspoon (d) two clear glasses
27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is kept the same. (a) True (b) False
28. 28.🛟 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
29. 29.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
30. 30.🔍 Which is the odd one out? (a) food colour (b) sawdust (c) sugar (d) baking soda
31. 31.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar stirred well (d) sugar left unstirred
32. 32.🥄 Which of these dissolves in water? (a) cooking oil (b) chalk powder (c) sand (d) baking soda
33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we keep it the same (b) we measure it (c) we change it
34. 34.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a friend who is running (c) a grown-up (d) nobody needs to
35. 35.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
36. 36.🧺 Which of these is not needed for the dissolving test? (a) a magnet (b) warm water (c) cold water (d) two clear glasses
37. 37.True or false: powdered sugar dissolves slower. (a) False (b) True
38. 38.True or false: sugar left unstirred dissolves faster. (a) True (b) False
39. 39.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
40. 40.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) warm water is thicker (c) sugar likes the dark (d) cold water is wet

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