Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 249 · 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.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is what we measure. (a) False (b) True
3. 3.🧺 Which of these is needed for the dissolving test? (a) cold water (b) a mirror (c) a balloon (d) a magnet
4. 4.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
5. 5.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cotton wool (b) warm water (c) two clear glasses (d) a clock or timer
6. 6.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
7. 7.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) honey (c) a balloon (d) two clear glasses
8. 8.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) smell it closely (c) poke it with a finger (d) taste it
9. 9.⚖️ 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 keep it the same (c) we change it
10. 10.True or false: food colour dissolves in water. (a) False (b) True
11. 11.⚖️ 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
12. 12.True or false: honey is needed for the dissolving test. (a) True (b) False
13. 13.🧺 Which of these is needed for the dissolving test? (a) warm water (b) a magnet (c) honey (d) a balloon
14. 14.🥄 Which of these does not dissolve in water? (a) sugar (b) baking soda (c) glucose powder (d) chalk powder
15. 15.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) cold water (c) a clock or timer (d) a mirror
16. 16.True or false: baking soda does not dissolve in water. (a) True (b) False
17. 17.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) powdered sugar (c) neither of them (d) both the same
18. 18.🔍 Which is the odd one out? (a) cooking oil (b) sand (c) chalk powder (d) food colour
19. 19.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) warm water (c) a mirror (d) a clock or timer
20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we keep it the same (c) we measure it
21. 21.🛟 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
22. 22.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
23. 23.True or false: sugar dissolves in water. (a) True (b) False
24. 24.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a teaspoon (c) a balloon (d) two clear glasses
25. 25.True or false: a teaspoon is not needed for the dissolving test. (a) True (b) False
26. 26.True or false: sugar in icy water dissolves slower. (a) True (b) False
27. 27.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
28. 28.True or false: sugar stirred well dissolves faster. (a) True (b) False
29. 29.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) False (b) True
31. 31.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a magnet (c) cold water (d) two clear glasses
32. 32.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in icy water (c) sugar in warm water (d) sugar stirred well
33. 33.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
34. 34.⚖️ 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
35. 35.True or false: sugar left unstirred dissolves faster. (a) True (b) False
36. 36.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is the one thing we change. (a) False (b) True
37. 37.⚖️ 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 stirring (c) the water temperature (d) time to dissolve
38. 38.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
39. 39.🔮 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
40. 40.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed

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