Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 71 · 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 water temperature is what we measure. (a) False (b) True
2. 2.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we keep it the same (b) we measure it (c) we change it
4. 4.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
5. 5.True or false: sugar in warm water dissolves faster. (a) True (b) False
6. 6.🔮 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) some stays undissolved (c) all of it dissolves (d) the water turns solid
7. 7.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
8. 8.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) powdered sugar (c) neither of them (d) the sugar cube
9. 9.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) faster (d) not at all
10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) False (b) True
11. 11.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
12. 12.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) a clock or timer (c) two clear glasses (d) honey
13. 13.🧺 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
14. 14.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
15. 15.🥄 Which of these dissolves in water? (a) small pebbles (b) sawdust (c) cooking oil (d) baking soda
16. 16.⚖️ 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
17. 17.🥄 Which of these dissolves in water? (a) sand (b) sugar (c) cooking oil (d) small pebbles
18. 18.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
19. 19.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) honey (c) cold water (d) a magnet
20. 20.🧺 Which of these is not needed for the dissolving test? (a) a balloon (b) two clear glasses (c) a teaspoon (d) warm water
21. 21.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
22. 22.⚖️ 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
23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we keep it the same (b) we measure it (c) we change it
24. 24.🔍 Which is the odd one out? (a) cooking oil (b) table salt (c) chalk powder (d) sawdust
25. 25.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it sank as sand (c) it spread in the water (d) it became air
26. 26.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
27. 27.🧺 Which of these is needed for the dissolving test? (a) a clock or timer (b) honey (c) a balloon (d) cotton wool
28. 28.⚖️ 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 sugar
29. 29.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a friend who is running (c) a grown-up (d) the youngest child
30. 30.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in icy water (c) powdered sugar (d) sugar in warm water
31. 31.📘 What do we call water with sugar dissolved in it? (a) a solution (b) a magnet (c) a crystal (d) a rainbow
32. 32.True or false: sugar in icy water dissolves faster. (a) True (b) False
33. 33.⚖️ 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
34. 34.True or false: food colour dissolves in water. (a) True (b) False
35. 35.🥄 Which of these dissolves slower? (a) a big sugar cube (b) sugar stirred well (c) sugar in warm water (d) powdered sugar
36. 36.🥄 Which of these does not dissolve in water? (a) sugar (b) table salt (c) sawdust (d) baking soda
37. 37.🔍 Which is the odd one out? (a) chalk powder (b) baking soda (c) cooking oil (d) sawdust
38. 38.🥄 Which of these does not dissolve in water? (a) small pebbles (b) baking soda (c) glucose powder (d) sugar
39. 39.⚖️ 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 change it (c) we keep it the same
40. 40.True or false: sugar does not dissolve in water. (a) False (b) True

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