Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 153 · 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) let the water evaporate (d) stir it more
2. 2.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
3. 3.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
4. 4.🥄 Which of these dissolves slower? (a) sugar in icy water (b) sugar stirred well (c) sugar in warm water (d) powdered sugar
5. 5.True or false: a teaspoon is needed for the dissolving test. (a) True (b) False
6. 6.🥄 Which of these dissolves in water? (a) small pebbles (b) food colour (c) chalk powder (d) sand
7. 7.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a grown-up (c) a friend who is running (d) nobody needs to
8. 8.True or false: a magnet is not needed for the dissolving test. (a) True (b) False
9. 9.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a clock or timer (c) sugar (d) a mirror
10. 10.True or false: honey is not needed for the dissolving test. (a) False (b) True
11. 11.🥄 Which of these does not dissolve in water? (a) food colour (b) table salt (c) small pebbles (d) glucose powder
12. 12.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) sugar stirred well (d) a big sugar cube
13. 13.🥄 Which of these dissolves in water? (a) small pebbles (b) cooking oil (c) chalk powder (d) sugar
14. 14.True or false: a magnet is needed for the dissolving test. (a) False (b) True
15. 15.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is the one thing we change. (a) True (b) False
17. 17.True or false: sand dissolves in water. (a) False (b) True
18. 18.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
19. 19.🥄 Which of these does not dissolve in water? (a) cooking oil (b) baking soda (c) table salt (d) glucose powder
20. 20.⚖️ 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 change it (c) we keep it the same
21. 21.True or false: sugar does not dissolve in water. (a) True (b) False
22. 22.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
23. 23.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
24. 24.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) the sugar cube (c) both the same (d) powdered sugar
25. 25.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) taste it (c) poke it with a finger (d) look for leftover grains
26. 26.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
27. 27.True or false: small pebbles dissolves in water. (a) False (b) True
28. 28.True or false: sugar stirred well dissolves slower. (a) True (b) False
29. 29.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
30. 30.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
31. 31.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a solution (c) a crystal (d) a rainbow
32. 32.⚖️ 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
33. 33.🥄 Which of these does not dissolve in water? (a) food colour (b) sawdust (c) sugar (d) baking soda
34. 34.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a clock or timer (c) a magnet (d) warm water
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 keep it the same (b) we change it (c) we measure it
36. 36.True or false: a teaspoon is not needed for the dissolving test. (a) True (b) False
37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the stirring (b) the water temperature (c) the kind of sugar (d) time to dissolve
38. 38.⚖️ 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 amount of sugar (d) the water temperature
39. 39.🔮 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) all of it dissolves (d) the water turns solid
40. 40.True or false: sawdust dissolves in water. (a) False (b) True

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