Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 720 · 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? True or false: the kind of sugar is kept the same. (a) True (b) False
2. 2.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) warm water (c) cotton wool (d) cold water
3. 3.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it settles at the bottom (c) it turns blue (d) it dissolves
4. 4.🥄 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
5. 5.🥄 Which of these dissolves in water? (a) small pebbles (b) baking soda (c) chalk powder (d) sawdust
6. 6.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a teaspoon (c) two clear glasses (d) a balloon
7. 7.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) cotton wool (c) a clock or timer (d) sugar
8. 8.⚖️ 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
9. 9.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
10. 10.🔮 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) some stays undissolved (d) the water turns solid
11. 11.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
12. 12.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in icy water (c) sugar stirred well (d) sugar in warm water
13. 13.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar stirred well (d) sugar in icy 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 water temperature (b) time to dissolve (c) the amount of water (d) the amount of sugar
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we change it (b) we keep it the same (c) we measure it
16. 16.🥄 Which of these does not dissolve in water? (a) food colour (b) sugar (c) cooking oil (d) glucose powder
17. 17.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a comb (b) cold water (c) sugar (d) two clear glasses
18. 18.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) both the same (c) the sugar cube (d) neither of them
19. 19.True or false: cotton wool is needed for the dissolving test. (a) True (b) False
20. 20.🥄 Which of these dissolves slower? (a) sugar stirred well (b) powdered sugar (c) sugar in warm water (d) a big sugar cube
21. 21.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
22. 22.True or false: a mirror is not needed for the dissolving test. (a) False (b) True
23. 23.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a magnet (c) a teaspoon (d) two clear glasses
24. 24.⚖️ 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
25. 25.True or false: a comb is not needed for the dissolving test. (a) False (b) True
26. 26.🔍 Which is the odd one out? (a) baking soda (b) sand (c) small pebbles (d) chalk powder
27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is the one thing we change. (a) False (b) True
28. 28.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
29. 29.True or false: a big sugar cube dissolves faster. (a) False (b) True
30. 30.True or false: sugar does not dissolve in water. (a) False (b) True
31. 31.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
32. 32.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
33. 33.True or false: sugar in icy water dissolves slower. (a) False (b) True
34. 34.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a rainbow (c) a solution (d) a magnet
35. 35.🔍 Which is the odd one out? (a) glucose powder (b) sugar (c) baking soda (d) small pebbles
36. 36.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
37. 37.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
38. 38.True or false: sugar left unstirred dissolves slower. (a) True (b) False
39. 39.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
40. 40.True or false: powdered sugar dissolves faster. (a) True (b) False

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