Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 216 · 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.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it floats up (c) it dissolves (d) it settles at the bottom
2. 2.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar left unstirred (d) sugar stirred well
3. 3.🧺 Which of these is needed for the dissolving test? (a) cold water (b) a comb (c) a magnet (d) a mirror
4. 4.🔍 Which is the odd one out? (a) table salt (b) sugar (c) sawdust (d) baking soda
5. 5.🔍 Which is the odd one out? (a) baking soda (b) sawdust (c) chalk powder (d) cooking oil
6. 6.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) two clear glasses (c) a balloon (d) a clock or timer
7. 7.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
8. 8.⚖️ 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
9. 9.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a comb (c) warm water (d) cold water
10. 10.⚖️ 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
11. 11.⚖️ 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
12. 12.⚖️ 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
13. 13.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
14. 14.True or false: a big sugar cube dissolves faster. (a) True (b) False
15. 15.True or false: powdered sugar dissolves slower. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) sawdust (b) chalk powder (c) small pebbles (d) sugar
17. 17.🛟 How should you check if the sugar has dissolved? (a) taste it (b) smell it closely (c) poke it with a finger (d) look for leftover grains
18. 18.⚖️ 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
19. 19.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
20. 20.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
21. 21.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) two clear glasses (c) a clock or timer (d) cotton wool
22. 22.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) all of it dissolves (c) the sugar turns to salt (d) some stays undissolved
23. 23.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) the youngest child (c) a grown-up (d) nobody needs to
24. 24.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a magnet (c) cold water (d) two clear glasses
25. 25.🥄 Which of these does not dissolve in water? (a) food colour (b) sand (c) glucose powder (d) sugar
26. 26.⚖️ 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) time to dissolve (d) the kind of sugar
27. 27.True or false: baking soda does not dissolve in water. (a) True (b) False
28. 28.🧺 Which of these is needed for the dissolving test? (a) honey (b) two clear glasses (c) a balloon (d) a magnet
29. 29.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) both the same (c) powdered sugar (d) neither of them
30. 30.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
31. 31.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
32. 32.True or false: sugar in warm water dissolves faster. (a) False (b) True
33. 33.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) faster (c) the same (d) slower
34. 34.True or false: sand dissolves in water. (a) True (b) False
35. 35.🥄 Which of these dissolves in water? (a) glucose powder (b) chalk powder (c) sand (d) small pebbles
36. 36.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar left unstirred (d) sugar in warm water
37. 37.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) sugar (c) warm water (d) a magnet
38. 38.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) powdered sugar (d) a big sugar cube
39. 39.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
40. 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) True (b) False

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