Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 170 · 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 is needed for the dissolving test? (a) a clock or timer (b) a balloon (c) cotton wool (d) a mirror
2. 2.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it floats up (c) it settles at the bottom (d) it turns blue
3. 3.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
4. 4.🔍 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
5. 5.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) the water turns solid (c) all of it dissolves (d) the sugar turns to salt
6. 6.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a teaspoon (c) a magnet (d) two clear glasses
7. 7.True or false: a big sugar cube dissolves slower. (a) False (b) True
8. 8.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the kind of sugar (b) time to dissolve (c) the water temperature
9. 9.🔍 Which is the odd one out? (a) sugar (b) sand (c) cooking oil (d) small pebbles
10. 10.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) cold water (c) cotton wool (d) two clear glasses
11. 11.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a balloon (c) a teaspoon (d) a clock or timer
12. 12.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) the youngest child (c) nobody needs to (d) a grown-up
13. 13.⚖️ 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
14. 14.True or false: a magnet is not needed for the dissolving test. (a) True (b) False
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of water (b) time to dissolve (c) the water temperature
16. 16.🥄 Which of these dissolves in water? (a) food colour (b) chalk powder (c) cooking oil (d) small pebbles
17. 17.🥄 Which of these dissolves in water? (a) cooking oil (b) glucose powder (c) chalk powder (d) small pebbles
18. 18.🧺 Which of these is needed for the dissolving test? (a) a comb (b) two clear glasses (c) a magnet (d) a mirror
19. 19.True or false: sugar in icy water dissolves faster. (a) True (b) False
20. 20.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) faster (c) not at all (d) slower
21. 21.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a balloon (b) sugar (c) two clear glasses (d) a teaspoon
22. 22.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we change it (b) we measure it (c) we keep it the same
24. 24.🔍 Which is the odd one out? (a) table salt (b) sawdust (c) cooking oil (d) small pebbles
25. 25.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) the sugar cube (c) powdered sugar (d) both the same
26. 26.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) powdered sugar (d) sugar in icy water
27. 27.🥄 Which of these dissolves slower? (a) sugar left unstirred (b) powdered sugar (c) sugar in warm water (d) sugar stirred well
28. 28.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) warm water is thicker (c) cold water is wet (d) particles move faster
29. 29.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of sugar (b) the amount of water (c) time to dissolve (d) the kind of sugar
30. 30.True or false: sugar stirred well dissolves faster. (a) False (b) True
31. 31.🛟 How should you check if the sugar has dissolved? (a) taste it (b) poke it with a finger (c) smell it closely (d) look for leftover grains
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) False (b) True
33. 33.True or false: baking soda dissolves in water. (a) False (b) True
34. 34.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
35. 35.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) a big sugar cube (d) sugar stirred well
36. 36.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
37. 37.🥄 Which of these does not dissolve in water? (a) food colour (b) glucose powder (c) chalk powder (d) baking soda
38. 38.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) warm water (c) honey (d) a teaspoon
39. 39.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) a clock or timer (c) cold water (d) a teaspoon
40. 40.True or false: a big sugar cube dissolves faster. (a) False (b) True

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