Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 895 · 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: sawdust does not dissolve in water. (a) False (b) True
2. 2.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
3. 3.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) not at all (c) faster (d) slower
4. 4.True or false: baking soda dissolves in water. (a) True (b) False
5. 5.⚖️ 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 change it (c) we measure it
6. 6.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) the youngest child (c) nobody needs to (d) a grown-up
7. 7.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
8. 8.True or false: cold water is not needed for the dissolving test. (a) True (b) False
9. 9.True or false: table salt does not dissolve in water. (a) True (b) False
10. 10.🔮 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) the water turns solid (c) some stays undissolved (d) all of it dissolves
11. 11.🥄 Which of these dissolves slower? (a) a big sugar cube (b) powdered sugar (c) sugar stirred well (d) sugar in warm water
12. 12.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a teaspoon (c) sugar (d) a magnet
13. 13.True or false: sugar stirred well dissolves faster. (a) True (b) False
14. 14.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) sugar (c) a clock or timer (d) cotton wool
15. 15.⚖️ 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 keep it the same (c) we measure it
16. 16.⚖️ 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 kind of sugar (c) the water temperature (d) time to dissolve
17. 17.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
18. 18.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) look for leftover grains (c) smell it closely (d) taste it
19. 19.🥄 Which of these dissolves in water? (a) small pebbles (b) food colour (c) sand (d) sawdust
20. 20.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) warm water (c) a clock or timer (d) a comb
21. 21.🥄 Which of these dissolves in water? (a) cooking oil (b) sand (c) table salt (d) chalk powder
22. 22.True or false: a teaspoon is not needed for the dissolving test. (a) True (b) False
23. 23.🥄 Which of these does not dissolve in water? (a) table salt (b) baking soda (c) chalk powder (d) sugar
24. 24.True or false: cold water is needed for the dissolving test. (a) True (b) False
25. 25.🧺 Which of these is needed for the dissolving test? (a) honey (b) cotton wool (c) a mirror (d) sugar
26. 26.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we change it (b) we measure it (c) we keep it the same
28. 28.⚖️ 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) False (b) True
29. 29.True or false: a teaspoon is needed for the dissolving test. (a) True (b) False
30. 30.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
31. 31.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) sugar (c) cold water (d) honey
32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) False (b) True
33. 33.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
34. 34.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) powdered sugar (c) the sugar cube (d) neither of them
35. 35.🔍 How can you get the salt back from salty water? (a) let the water evaporate (b) keep it in a fridge (c) add more water (d) stir it more
36. 36.⚖️ 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) True (b) False
37. 37.True or false: a balloon is not needed for the dissolving test. (a) True (b) False
38. 38.⚖️ 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
39. 39.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
40. 40.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) sugar (c) a balloon (d) cold water

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