Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 427 · 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.🔍 Which is the odd one out? (a) table salt (b) sawdust (c) sugar (d) baking soda
2. 2.🧺 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) a mirror
3. 3.⚖️ 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
4. 4.True or false: cold water is not needed for the dissolving test. (a) True (b) False
5. 5.True or false: a mirror is needed for the dissolving test. (a) False (b) True
6. 6.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cotton wool (b) two clear glasses (c) cold water (d) a clock or timer
7. 7.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
8. 8.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) nobody needs to (c) the youngest child (d) a friend who is running
9. 9.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we keep it the same (b) we change it (c) we measure it
10. 10.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a balloon (b) a teaspoon (c) a clock or timer (d) sugar
11. 11.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
12. 12.⚖️ 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 sugar (c) the water temperature (d) time to dissolve
13. 13.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
14. 14.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
15. 15.🥄 Which of these dissolves in water? (a) glucose powder (b) sand (c) cooking oil (d) small pebbles
16. 16.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a solution (c) a magnet (d) a crystal
17. 17.True or false: table salt does not dissolve in water. (a) True (b) False
18. 18.⚖️ 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) True (b) False
19. 19.⚖️ 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
20. 20.🥄 Which of these dissolves in water? (a) chalk powder (b) cooking oil (c) food colour (d) sawdust
21. 21.⚖️ 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 amount of water (c) the amount of sugar (d) the water temperature
22. 22.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) honey (c) two clear glasses (d) a clock or timer
23. 23.🧺 Which of these is needed for the dissolving test? (a) two clear glasses (b) a mirror (c) a magnet (d) a comb
24. 24.🛟 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
25. 25.True or false: a mirror is not needed for the dissolving test. (a) False (b) True
26. 26.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) not at all (c) slower (d) the same
27. 27.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
28. 28.True or false: sugar stirred well dissolves slower. (a) True (b) False
29. 29.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
30. 30.True or false: sugar in warm water dissolves faster. (a) False (b) True
31. 31.True or false: sugar in icy water dissolves faster. (a) False (b) True
32. 32.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) neither of them (c) both the same (d) powdered sugar
33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we measure it (b) we change it (c) we keep it the same
34. 34.True or false: sawdust dissolves in water. (a) False (b) True
35. 35.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
36. 36.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a magnet (c) cold water (d) a clock or timer
37. 37.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a magnet (c) cold water (d) a clock or timer
38. 38.🔍 How can you get the salt back from salty water? (a) stir it more (b) let the water evaporate (c) keep it in a fridge (d) add more water
39. 39.⚖️ 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
40. 40.🔍 Which is the odd one out? (a) chalk powder (b) cooking oil (c) food colour (d) sand

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