Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 717 · 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: chalk powder dissolves in water. (a) False (b) True
2. 2.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it became air (c) it sank as sand (d) it spread in the water
3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the water temperature (b) time to dissolve (c) the amount of sugar
4. 4.⚖️ 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
5. 5.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) not at all (c) faster (d) slower
6. 6.True or false: baking soda does not dissolve in water. (a) True (b) False
7. 7.🔍 Sand is stirred into water. What do you see after a while? (a) it settles at the bottom (b) it dissolves (c) it turns blue (d) it floats up
8. 8.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
9. 9.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) look for leftover grains (c) poke it with a finger (d) taste it
10. 10.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a magnet (c) a solution (d) a rainbow
11. 11.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
12. 12.⚖️ 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
13. 13.🧺 Which of these is needed for the dissolving test? (a) a comb (b) sugar (c) a magnet (d) honey
14. 14.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cotton wool (b) cold water (c) a clock or timer (d) a teaspoon
15. 15.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a teaspoon (c) a balloon (d) a comb
16. 16.⚖️ 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
17. 17.🥄 Which of these does not dissolve in water? (a) sand (b) glucose powder (c) sugar (d) food colour
18. 18.True or false: two clear glasses is needed for the dissolving test. (a) False (b) True
19. 19.🥄 Which of these dissolves in water? (a) sand (b) small pebbles (c) cooking oil (d) baking soda
20. 20.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
21. 21.True or false: honey is not needed for the dissolving test. (a) False (b) True
22. 22.⚖️ 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 amount of sugar (c) the water temperature (d) the kind of sugar
23. 23.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in warm water (c) a big sugar cube (d) sugar in icy water
24. 24.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) nobody needs to (c) a grown-up (d) the youngest child
25. 25.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) some stays undissolved (c) the sugar turns to salt (d) the water turns solid
26. 26.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of water (b) time to dissolve (c) the water temperature
28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is what we measure. (a) True (b) False
29. 29.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a teaspoon (c) a magnet (d) cold water
30. 30.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
31. 31.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
32. 32.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
33. 33.True or false: a teaspoon is not needed for the dissolving test. (a) True (b) False
34. 34.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
35. 35.True or false: glucose powder dissolves in water. (a) True (b) False
36. 36.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) cold water (c) a teaspoon (d) a clock or timer
37. 37.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
38. 38.🥄 Which of these dissolves in water? (a) table salt (b) chalk powder (c) sand (d) cooking oil
39. 39.True or false: sugar dissolves in water. (a) False (b) True
40. 40.🥄 Which of these does not dissolve in water? (a) glucose powder (b) baking soda (c) cooking oil (d) food colour

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