Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 50 · 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: sugar in icy water dissolves slower. (a) False (b) True
2. 2.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a clock or timer (c) cotton wool (d) sugar
3. 3.⚖️ 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) True (b) False
4. 4.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
5. 5.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a solution (c) a magnet (d) a crystal
6. 6.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) cold water (c) warm water (d) a comb
7. 7.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) warm water (c) cold water (d) a balloon
8. 8.🛟 How should you check if the sugar has dissolved? (a) taste it (b) smell it closely (c) poke it with a finger (d) look for leftover grains
9. 9.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) a friend who is running (c) nobody needs to (d) the youngest child
10. 10.🥄 Which of these dissolves in water? (a) small pebbles (b) cooking oil (c) sugar (d) sand
11. 11.🥄 Which of these does not dissolve in water? (a) baking soda (b) glucose powder (c) sand (d) table salt
12. 12.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in warm water (c) sugar left unstirred (d) sugar in icy water
13. 13.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) cold water (c) warm water (d) a mirror
14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we change it (b) we keep it the same (c) we measure it
15. 15.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) neither of them (c) the sugar cube (d) both the same
16. 16.True or false: baking soda dissolves in water. (a) False (b) True
17. 17.⚖️ 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
18. 18.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
19. 19.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
20. 20.⚖️ 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 kind of sugar (d) the amount of water
21. 21.True or false: sugar left unstirred dissolves slower. (a) True (b) False
22. 22.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) two clear glasses (c) a teaspoon (d) a clock or timer
23. 23.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
24. 24.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
25. 25.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) not at all (c) the same (d) faster
26. 26.True or false: cotton wool is needed for the dissolving test. (a) True (b) False
27. 27.True or false: chalk powder does not dissolve in water. (a) False (b) True
28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we measure it (b) we keep it the same (c) we change it
29. 29.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) honey (c) two clear glasses (d) sugar
30. 30.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) particles move faster (c) sugar likes the dark (d) cold water is wet
31. 31.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we change it (b) we keep it the same (c) we measure it
32. 32.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
33. 33.🔍 Which is the odd one out? (a) cooking oil (b) baking soda (c) chalk powder (d) sawdust
34. 34.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) honey (c) sugar (d) a clock or timer
35. 35.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the kind of sugar (b) the amount of water (c) time to dissolve (d) the amount of sugar
36. 36.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is kept the same. (a) True (b) False
37. 37.🔮 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
38. 38.True or false: sugar stirred well dissolves slower. (a) False (b) True
39. 39.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
40. 40.True or false: sugar in warm water dissolves faster. (a) True (b) False

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