Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 941 · 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.True or false: two clear glasses is needed for the dissolving test. (a) True (b) False
2. 2.🥄 Which of these dissolves in water? (a) food colour (b) cooking oil (c) sawdust (d) small pebbles
3. 3.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of water (b) the stirring (c) time to dissolve (d) the water temperature
5. 5.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it floats up (c) it turns blue (d) it settles at the bottom
6. 6.📘 What do we call water with sugar dissolved in it? (a) a solution (b) a crystal (c) a rainbow (d) a magnet
7. 7.🧺 Which of these is needed for the dissolving test? (a) sugar (b) a magnet (c) a comb (d) cotton wool
8. 8.🔍 Which is the odd one out? (a) baking soda (b) sand (c) food colour (d) table salt
9. 9.🔍 Which is the odd one out? (a) baking soda (b) glucose powder (c) chalk powder (d) table salt
10. 10.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar left unstirred (d) powdered sugar
11. 11.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) nobody needs to (c) a friend who is running (d) the youngest child
12. 12.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
13. 13.🔍 Which is the odd one out? (a) small pebbles (b) sand (c) baking soda (d) cooking oil
14. 14.🔍 How can you get the salt back from salty water? (a) stir it more (b) keep it in a fridge (c) add more water (d) let the water evaporate
15. 15.🔍 Which is the odd one out? (a) chalk powder (b) sugar (c) sawdust (d) sand
16. 16.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) look for leftover grains (c) smell it closely (d) taste it
17. 17.True or false: a magnet is not needed for the dissolving test. (a) False (b) True
18. 18.🥄 Which of these dissolves faster? (a) sugar stirred well (b) a big sugar cube (c) sugar left unstirred (d) sugar in icy water
19. 19.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar in icy water (d) sugar stirred well
20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) time to dissolve (b) the amount of sugar (c) the water temperature
21. 21.True or false: powdered sugar dissolves slower. (a) False (b) True
22. 22.🥄 Which of these dissolves slower? (a) a big sugar cube (b) sugar in warm water (c) powdered sugar (d) sugar stirred well
23. 23.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) the sugar turns to salt (c) the water turns solid (d) some stays undissolved
24. 24.🧺 Which of these is needed for the dissolving test? (a) honey (b) cotton wool (c) a balloon (d) a clock or timer
25. 25.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
26. 26.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
27. 27.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a mirror (b) warm water (c) two clear glasses (d) sugar
28. 28.⚖️ 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 measure it (c) we change it
29. 29.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) not at all (d) faster
30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is the one thing we change. (a) False (b) True
31. 31.⚖️ 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) False (b) True
32. 32.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
33. 33.True or false: warm water is not needed for the dissolving test. (a) True (b) False
34. 34.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
35. 35.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we measure it (b) we change it (c) we keep it the same
36. 36.⚖️ 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
37. 37.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) sugar (c) warm water (d) a magnet
38. 38.True or false: warm water is needed for the dissolving test. (a) True (b) False
39. 39.True or false: table salt dissolves in water. (a) True (b) False
40. 40.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) powdered sugar (c) neither of them (d) both the same

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