Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 450 · 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.🔮 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
2. 2.⚖️ 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
3. 3.True or false: table salt does not dissolve in water. (a) False (b) True
4. 4.True or false: sugar dissolves in water. (a) False (b) True
5. 5.True or false: baking soda dissolves in water. (a) True (b) False
6. 6.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
7. 7.🥄 Which of these does not dissolve in water? (a) glucose powder (b) chalk powder (c) table salt (d) sugar
8. 8.⚖️ 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
9. 9.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is the one thing we change. (a) False (b) True
10. 10.⚖️ 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 keep it the same (c) we change it
11. 11.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a mirror (c) warm water (d) a balloon
12. 12.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
13. 13.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) cold water (c) sugar (d) honey
14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is kept the same. (a) True (b) False
15. 15.True or false: honey is not needed for the dissolving test. (a) False (b) True
16. 16.True or false: a clock or timer is not needed for the dissolving test. (a) True (b) False
17. 17.True or false: a mirror is not needed for the dissolving test. (a) False (b) True
18. 18.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) powdered sugar (d) sugar left unstirred
19. 19.⚖️ 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
20. 20.🔮 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 water turns solid (d) the sugar turns to salt
21. 21.🥄 Which of these dissolves in water? (a) cooking oil (b) small pebbles (c) sand (d) baking soda
22. 22.True or false: cooking oil dissolves in water. (a) False (b) True
23. 23.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
24. 24.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) sugar (c) a balloon (d) a clock or timer
25. 25.True or false: small pebbles dissolves in water. (a) False (b) True
26. 26.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
27. 27.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) sugar in icy water (d) sugar in warm water
28. 28.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
29. 29.🥄 Which of these dissolves faster? (a) sugar in warm water (b) sugar left unstirred (c) sugar in icy water (d) a big sugar cube
30. 30.🥄 Which of these does not dissolve in water? (a) food colour (b) table salt (c) sugar (d) sand
31. 31.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) False (b) True
32. 32.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
33. 33.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) cold water (c) a mirror (d) sugar
34. 34.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) a balloon (c) cold water (d) honey
35. 35.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the water temperature (b) the stirring (c) the amount of sugar (d) time to dissolve
36. 36.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is the one thing we change. (a) True (b) False
37. 37.🥄 Which of these dissolves in water? (a) sugar (b) sawdust (c) sand (d) chalk powder
38. 38.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) honey (c) cold water (d) warm water
39. 39.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) cold water (c) sugar (d) cotton wool
40. 40.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) poke it with a finger (c) smell it closely (d) taste it

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