Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 447 · 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: a comb is needed for the dissolving test. (a) False (b) True
2. 2.True or false: sugar is not needed for the dissolving test. (a) False (b) True
3. 3.⚖️ 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
4. 4.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
5. 5.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) nobody needs to (c) the youngest child (d) a friend who is running
6. 6.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) two clear glasses (c) honey (d) a clock or timer
7. 7.🥄 Which of these dissolves slower? (a) sugar stirred well (b) powdered sugar (c) a big sugar cube (d) sugar in warm water
8. 8.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a crystal (c) a rainbow (d) a solution
9. 9.🔍 Which is the odd one out? (a) sawdust (b) sand (c) cooking oil (d) food colour
10. 10.True or false: sugar in warm water dissolves faster. (a) False (b) True
11. 11.🔮 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 water turns solid (c) some stays undissolved (d) the sugar turns to salt
12. 12.🥄 Which of these dissolves faster? (a) a big sugar cube (b) powdered sugar (c) sugar left unstirred (d) sugar in icy water
13. 13.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
14. 14.⚖️ 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) time to dissolve (c) the water temperature (d) the amount of sugar
15. 15.🥄 Which of these does not dissolve in water? (a) table salt (b) baking soda (c) glucose powder (d) sand
16. 16.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
17. 17.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) two clear glasses (c) cotton wool (d) sugar
18. 18.⚖️ 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) time to dissolve (c) the stirring (d) the amount of water
19. 19.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) slower (c) the same (d) not at all
20. 20.🔍 Which is the odd one out? (a) baking soda (b) glucose powder (c) sugar (d) sand
21. 21.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it dissolves (c) it settles at the bottom (d) it turns blue
22. 22.True or false: sugar left unstirred dissolves slower. (a) False (b) True
23. 23.True or false: sugar stirred well dissolves faster. (a) True (b) False
24. 24.⚖️ 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
25. 25.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) neither of them (c) powdered sugar (d) both the same
26. 26.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a balloon (c) cold water (d) warm water
27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we measure it (b) we keep it the same (c) we change it
28. 28.🥄 Which of these dissolves in water? (a) small pebbles (b) sawdust (c) sugar (d) cooking oil
29. 29.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
30. 30.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
31. 31.True or false: two clear glasses is needed for the dissolving test. (a) False (b) True
32. 32.🧺 Which of these is not needed for the dissolving test? (a) a mirror (b) cold water (c) two clear glasses (d) a clock or timer
33. 33.True or false: a big sugar cube dissolves slower. (a) False (b) True
34. 34.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we change it (b) we measure it (c) we keep it the same
35. 35.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a teaspoon (c) sugar (d) a magnet
36. 36.🥄 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
37. 37.🛟 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
38. 38.🔍 Which is the odd one out? (a) baking soda (b) sawdust (c) table salt (d) sugar
39. 39.True or false: sugar in icy water dissolves faster. (a) False (b) True
40. 40.True or false: a clock or timer is needed for the dissolving test. (a) True (b) False

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