Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 347 · 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.🔍 How can you get the salt back from salty water? (a) stir it more (b) add more water (c) let the water evaporate (d) keep it in a fridge
2. 2.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
3. 3.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) both the same (c) neither of them (d) powdered sugar
4. 4.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) two clear glasses (c) honey (d) a clock or timer
5. 5.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we change it (b) we measure it (c) we keep it the same
7. 7.True or false: baking soda does not dissolve in water. (a) True (b) False
8. 8.🥄 Which of these dissolves in water? (a) cooking oil (b) chalk powder (c) food colour (d) small pebbles
9. 9.True or false: a magnet is needed for the dissolving test. (a) True (b) False
10. 10.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
11. 11.True or false: chalk powder does not dissolve in water. (a) False (b) True
12. 12.🧺 Which of these is needed for the dissolving test? (a) cold water (b) a mirror (c) honey (d) a comb
13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we measure it (b) we change it (c) we keep it the same
14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is the one thing we change. (a) True (b) False
15. 15.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a teaspoon (c) a clock or timer (d) honey
16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is what we measure. (a) False (b) True
17. 17.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
18. 18.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) cold water (c) a magnet (d) two clear glasses
19. 19.True or false: a balloon is needed for the dissolving test. (a) True (b) False
20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) False (b) True
21. 21.🔮 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) some stays undissolved (d) the sugar turns to salt
22. 22.True or false: cold water is not needed for the dissolving test. (a) True (b) False
23. 23.🔍 Which is the odd one out? (a) sawdust (b) small pebbles (c) sand (d) food colour
24. 24.True or false: powdered sugar dissolves faster. (a) True (b) False
25. 25.True or false: powdered sugar dissolves slower. (a) True (b) False
26. 26.True or false: honey is not needed for the dissolving test. (a) False (b) True
27. 27.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in warm water (c) sugar left unstirred (d) powdered sugar
28. 28.True or false: small pebbles dissolves in water. (a) False (b) True
29. 29.⚖️ 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 kind of sugar
30. 30.⚖️ 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 water
31. 31.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) cotton wool (c) a mirror (d) a clock or timer
32. 32.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) faster (c) not at all (d) slower
33. 33.⚖️ 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 keep it the same (c) we measure it
34. 34.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) sugar in warm water (d) a big sugar cube
35. 35.True or false: sugar dissolves in water. (a) True (b) False
36. 36.True or false: a teaspoon is needed for the dissolving test. (a) False (b) True
37. 37.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar stirred well (c) sugar in icy water (d) sugar left unstirred
38. 38.True or false: sugar in icy water dissolves slower. (a) False (b) True
39. 39.🔍 Which is the odd one out? (a) food colour (b) baking soda (c) sugar (d) small pebbles
40. 40.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve

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