Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 98 · 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: food colour dissolves in water. (a) True (b) False
2. 2.True or false: sawdust does not dissolve in water. (a) False (b) True
3. 3.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) cold water (c) a mirror (d) sugar
4. 4.True or false: a magnet is not needed for the dissolving test. (a) True (b) False
5. 5.🥄 Which of these does not dissolve in water? (a) baking soda (b) glucose powder (c) cooking oil (d) table salt
6. 6.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) a friend who is running (c) the youngest child (d) nobody needs to
7. 7.True or false: cold water is needed for the dissolving test. (a) True (b) False
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.🛟 How should you check if the sugar has dissolved? (a) taste it (b) look for leftover grains (c) smell it closely (d) poke it with a finger
10. 10.🔍 Which is the odd one out? (a) food colour (b) cooking oil (c) small pebbles (d) sawdust
11. 11.🔮 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) the water turns solid (d) all of it dissolves
12. 12.🔍 Which is the odd one out? (a) chalk powder (b) cooking oil (c) sawdust (d) table salt
13. 13.🔍 Which is the odd one out? (a) sugar (b) cooking oil (c) table salt (d) food colour
14. 14.True or false: small pebbles dissolves in water. (a) True (b) False
15. 15.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar stirred well (d) sugar left unstirred
16. 16.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a clock or timer (c) sugar (d) cotton wool
17. 17.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) warm water (c) a comb (d) a teaspoon
18. 18.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
19. 19.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) both the same (c) the sugar cube (d) neither of them
20. 20.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
21. 21.⚖️ 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
22. 22.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) sugar in warm water (d) sugar left unstirred
23. 23.True or false: a clock or timer is not needed for the dissolving test. (a) True (b) False
24. 24.⚖️ 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 change it (c) we measure it
25. 25.True or false: sugar in warm water dissolves faster. (a) False (b) True
26. 26.True or false: chalk powder does not dissolve in water. (a) True (b) False
27. 27.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a balloon (c) honey (d) two clear glasses
28. 28.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
29. 29.🧺 Which of these is not needed for the dissolving test? (a) a magnet (b) a clock or timer (c) warm water (d) sugar
30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we measure it (b) we change it (c) we keep it the same
31. 31.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the kind of sugar (b) time to dissolve (c) the water temperature
33. 33.🥄 Which of these does not dissolve in water? (a) glucose powder (b) food colour (c) baking soda (d) sawdust
34. 34.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) honey (c) warm water (d) a clock or timer
35. 35.True or false: cooking oil dissolves in water. (a) True (b) False
36. 36.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) faster (c) the same (d) not at all
37. 37.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) honey (c) a clock or timer (d) warm water
38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the stirring (b) the water temperature (c) the kind of sugar (d) the amount of water
39. 39.True or false: table salt does not dissolve in water. (a) True (b) False
40. 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of water (b) the stirring (c) the kind of sugar (d) time to dissolve

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