Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 531 · 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.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) a big sugar cube (d) powdered sugar
2. 2.True or false: a balloon is needed for the dissolving test. (a) True (b) False
3. 3.True or false: a comb is not needed for the dissolving test. (a) False (b) True
4. 4.True or false: powdered sugar dissolves faster. (a) False (b) True
5. 5.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
6. 6.⚖️ 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 kind of sugar (c) time to dissolve (d) the stirring
7. 7.True or false: sugar left unstirred dissolves faster. (a) True (b) False
8. 8.🛟 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
9. 9.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) a teaspoon (c) sugar (d) cold water
10. 10.⚖️ 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) True (b) False
11. 11.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
12. 12.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar in icy water (d) sugar in warm water
13. 13.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) two clear glasses (c) warm water (d) honey
14. 14.🥄 Which of these dissolves in water? (a) glucose powder (b) chalk powder (c) small pebbles (d) sawdust
15. 15.🥄 Which of these dissolves in water? (a) sawdust (b) small pebbles (c) food colour (d) cooking oil
16. 16.True or false: sugar in warm water dissolves slower. (a) False (b) True
17. 17.True or false: a clock or timer is not needed for the dissolving test. (a) False (b) True
18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the amount of water (b) the amount of sugar (c) the stirring (d) the water temperature
19. 19.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) both the same (c) neither of them (d) powdered sugar
20. 20.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
21. 21.🔍 How can you get the salt back from salty water? (a) stir it more (b) add more water (c) let the water evaporate (d) keep it in a fridge
22. 22.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
23. 23.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
24. 24.🔍 Which is the odd one out? (a) sand (b) small pebbles (c) table salt (d) sawdust
25. 25.🥄 Which of these does not dissolve in water? (a) sugar (b) baking soda (c) table salt (d) sand
26. 26.True or false: sawdust dissolves in water. (a) True (b) False
27. 27.🔮 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) some stays undissolved (c) all of it dissolves (d) the water turns solid
28. 28.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) cotton wool (c) two clear glasses (d) a clock or timer
29. 29.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) cold water is wet (c) sugar likes the dark (d) warm water is thicker
30. 30.True or false: sugar does not dissolve in water. (a) False (b) True
31. 31.🛟 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
32. 32.True or false: sugar left unstirred dissolves slower. (a) False (b) True
33. 33.True or false: small pebbles does not dissolve in water. (a) True (b) False
34. 34.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) not at all (c) faster (d) slower
35. 35.⚖️ 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
36. 36.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) honey (c) cold water (d) cotton wool
37. 37.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it settles at the bottom (c) it dissolves (d) it floats up
38. 38.🥄 Which of these dissolves in water? (a) chalk powder (b) sugar (c) sand (d) cooking oil
39. 39.⚖️ 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 kind of sugar (c) the water temperature
40. 40.⚖️ 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

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