Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 578 · 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 does not dissolve in water. (a) False (b) True
2. 2.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it spread in the water (c) it became air (d) it vanished for ever
3. 3.🔮 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
4. 4.🔍 Which is the odd one out? (a) chalk powder (b) cooking oil (c) small pebbles (d) baking soda
5. 5.True or false: a clock or timer is not needed for the dissolving test. (a) False (b) True
6. 6.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
7. 7.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) look for leftover grains (c) taste it (d) smell it closely
8. 8.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) the sugar cube (c) powdered sugar (d) neither of them
9. 9.🥄 Which of these dissolves in water? (a) sawdust (b) table salt (c) chalk powder (d) sand
10. 10.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) cold water (c) a comb (d) a magnet
11. 11.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) honey (c) a comb (d) a teaspoon
12. 12.True or false: a comb is not needed for the dissolving test. (a) True (b) False
13. 13.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) particles move faster (c) cold water is wet (d) warm water is thicker
14. 14.🥄 Which of these dissolves in water? (a) small pebbles (b) sand (c) sugar (d) sawdust
15. 15.🔍 Which is the odd one out? (a) table salt (b) food colour (c) sugar (d) small pebbles
16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the stirring (b) time to dissolve (c) the water temperature
17. 17.🔍 Sand is stirred into water. What do you see after a while? (a) it settles at the bottom (b) it floats up (c) it turns blue (d) it dissolves
18. 18.🔍 Which is the odd one out? (a) chalk powder (b) cooking oil (c) sugar (d) sawdust
19. 19.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar stirred well (d) sugar in icy water
20. 20.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
21. 21.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
22. 22.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) cold water (c) a balloon (d) a clock or timer
23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the stirring (b) the amount of water (c) the water temperature (d) time to dissolve
24. 24.True or false: table salt dissolves in water. (a) True (b) False
25. 25.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
26. 26.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
27. 27.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we measure it (b) we keep it the same (c) we change it
29. 29.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a crystal (c) a rainbow (d) a solution
30. 30.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) slower (c) not at all (d) faster
31. 31.True or false: sugar in warm water dissolves slower. (a) False (b) True
32. 32.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) the youngest child (c) a grown-up (d) a friend who is running
33. 33.🧺 Which of these is not needed for the dissolving test? (a) a mirror (b) a teaspoon (c) warm water (d) sugar
34. 34.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
35. 35.True or false: warm water is not needed for the dissolving test. (a) True (b) False
36. 36.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) warm water (c) two clear glasses (d) a mirror
37. 37.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
38. 38.⚖️ 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
39. 39.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a teaspoon (c) cold water (d) a magnet
40. 40.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed

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