Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 553 · 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.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a crystal (c) a solution (d) a rainbow
2. 2.⚖️ 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) True (b) False
3. 3.True or false: sugar in warm water dissolves faster. (a) False (b) True
4. 4.🧺 Which of these is needed for the dissolving test? (a) honey (b) cotton wool (c) a teaspoon (d) a balloon
5. 5.True or false: food colour does not dissolve in water. (a) True (b) False
6. 6.⚖️ 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) False (b) True
7. 7.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a grown-up (c) a friend who is running (d) the youngest child
8. 8.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
9. 9.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a mirror (c) two clear glasses (d) a magnet
10. 10.⚖️ 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
11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) True (b) False
12. 12.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
13. 13.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) cold water is wet (c) sugar likes the dark (d) particles move faster
14. 14.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
15. 15.🔍 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
16. 16.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a clock or timer (c) sugar (d) honey
17. 17.🛟 How should you check if the sugar has dissolved? (a) taste it (b) look for leftover grains (c) smell it closely (d) poke it with a finger
18. 18.True or false: table salt does not dissolve in water. (a) False (b) True
19. 19.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) True (b) False
20. 20.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we measure it (b) we change it (c) we keep it the same
22. 22.True or false: cotton wool is needed for the dissolving test. (a) True (b) False
23. 23.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
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 change it (b) we measure it (c) we keep it the same
25. 25.🥄 Which of these dissolves in water? (a) chalk powder (b) sugar (c) sand (d) cooking oil
26. 26.⚖️ 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
27. 27.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) powdered sugar (c) the sugar cube (d) neither of them
28. 28.🔮 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 sugar turns to salt (c) some stays undissolved (d) the water turns solid
29. 29.True or false: cold water is needed for the dissolving test. (a) False (b) True
30. 30.True or false: cold water is not needed for the dissolving test. (a) False (b) True
31. 31.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) a big sugar cube (d) sugar in warm water
32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we keep it the same (b) we measure it (c) we change it
33. 33.True or false: sugar is not needed for the dissolving test. (a) True (b) False
34. 34.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
35. 35.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
36. 36.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
37. 37.⚖️ 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 sugar (b) the water temperature (c) the kind of sugar (d) the stirring
38. 38.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) cold water (c) two clear glasses (d) sugar
39. 39.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
40. 40.True or false: sugar left unstirred dissolves slower. (a) True (b) False

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