Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 439 · 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.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) time to dissolve (b) the water temperature (c) the amount of sugar (d) the amount of water
2. 2.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
3. 3.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
4. 4.🥄 Which of these dissolves in water? (a) glucose powder (b) sawdust (c) chalk powder (d) small pebbles
5. 5.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a magnet (c) a mirror (d) cold water
6. 6.🥄 Which of these does not dissolve in water? (a) food colour (b) baking soda (c) sawdust (d) sugar
7. 7.True or false: honey is needed for the dissolving test. (a) True (b) False
8. 8.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it vanished for ever (c) it spread in the water (d) it sank as sand
9. 9.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) time to dissolve (b) the kind of sugar (c) the water temperature (d) the stirring
10. 10.📘 What do we call water with sugar dissolved in it? (a) a solution (b) a rainbow (c) a crystal (d) a magnet
11. 11.🔍 Which is the odd one out? (a) glucose powder (b) baking soda (c) cooking oil (d) food colour
12. 12.True or false: sugar stirred well dissolves slower. (a) True (b) False
13. 13.🔍 Which is the odd one out? (a) sand (b) cooking oil (c) chalk powder (d) baking soda
14. 14.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
15. 15.🥄 Which of these does not dissolve in water? (a) small pebbles (b) baking soda (c) food colour (d) glucose powder
16. 16.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
17. 17.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) sugar in warm water (d) a big sugar cube
18. 18.⚖️ 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) False (b) True
19. 19.🥄 Which of these dissolves in water? (a) sawdust (b) sand (c) food colour (d) small pebbles
20. 20.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the sugar turns to salt (b) all of it dissolves (c) the water turns solid (d) some stays undissolved
21. 21.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
22. 22.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it settles at the bottom (c) it dissolves (d) it turns blue
23. 23.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) a grown-up (c) the youngest child (d) nobody needs to
24. 24.🔍 How can you get the salt back from salty water? (a) add more water (b) stir it more (c) let the water evaporate (d) keep it in a fridge
25. 25.True or false: warm water is needed for the dissolving test. (a) True (b) False
26. 26.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a balloon (c) warm water (d) a mirror
27. 27.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
28. 28.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) poke it with a finger (c) taste it (d) smell it closely
29. 29.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we measure it (b) we keep it the same (c) we change it
30. 30.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
31. 31.True or false: two clear glasses is not needed for the dissolving test. (a) False (b) True
32. 32.🔍 Which is the odd one out? (a) food colour (b) sugar (c) glucose powder (d) sand
33. 33.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
34. 34.🥄 Which of these does not dissolve in water? (a) food colour (b) glucose powder (c) chalk powder (d) table salt
35. 35.🔍 Which is the odd one out? (a) table salt (b) sand (c) chalk powder (d) sawdust
36. 36.⚖️ 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
37. 37.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) powdered sugar (d) sugar in icy water
38. 38.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a mirror (b) a teaspoon (c) a clock or timer (d) two clear glasses
39. 39.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) sugar (c) two clear glasses (d) a magnet
40. 40.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water

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