Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 105 · 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) powdered sugar (c) neither of them (d) both the same
2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) time to dissolve (b) the water temperature (c) the kind of sugar (d) the amount of water
3. 3.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
4. 4.True or false: table salt dissolves in water. (a) False (b) True
5. 5.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the water temperature (b) the amount of sugar (c) the kind of sugar (d) time to dissolve
7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we measure it (b) we change it (c) we keep it the same
8. 8.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) two clear glasses (c) a teaspoon (d) cotton wool
9. 9.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we keep it the same (b) we measure it (c) we change it
10. 10.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
11. 11.🔍 Which is the odd one out? (a) small pebbles (b) baking soda (c) sawdust (d) sand
12. 12.🔍 Which is the odd one out? (a) glucose powder (b) chalk powder (c) baking soda (d) food colour
13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is kept the same. (a) True (b) False
14. 14.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) cold water (c) a clock or timer (d) a magnet
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) time to dissolve (b) the kind of sugar (c) the water temperature
16. 16.🔍 Which is the odd one out? (a) food colour (b) table salt (c) glucose powder (d) sand
17. 17.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
18. 18.True or false: sugar left unstirred dissolves slower. (a) False (b) True
19. 19.🧺 Which of these is needed for the dissolving test? (a) sugar (b) a magnet (c) cotton wool (d) honey
20. 20.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
21. 21.True or false: sugar in warm water dissolves slower. (a) True (b) False
22. 22.⚖️ 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
23. 23.🔍 Which is the odd one out? (a) small pebbles (b) sugar (c) glucose powder (d) table salt
24. 24.🥄 Which of these dissolves faster? (a) sugar stirred well (b) sugar in icy water (c) sugar left unstirred (d) a big sugar cube
25. 25.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
26. 26.True or false: a mirror is needed for the dissolving test. (a) True (b) False
27. 27.🔍 Which is the odd one out? (a) sawdust (b) baking soda (c) food colour (d) glucose powder
28. 28.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
29. 29.🔍 How can you get the salt back from salty water? (a) let the water evaporate (b) add more water (c) keep it in a fridge (d) stir it more
30. 30.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
31. 31.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a crystal (c) a solution (d) a magnet
32. 32.True or false: sugar does not dissolve in water. (a) True (b) False
33. 33.🥄 Which of these dissolves in water? (a) sugar (b) small pebbles (c) sawdust (d) sand
34. 34.⚖️ 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
35. 35.True or false: a comb is needed for the dissolving test. (a) True (b) False
36. 36.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is what we measure. (a) True (b) False
37. 37.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) warm water (c) cotton wool (d) a teaspoon
38. 38.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) taste it (c) look for leftover grains (d) poke it with a finger
39. 39.🔍 Which is the odd one out? (a) food colour (b) small pebbles (c) sawdust (d) cooking oil
40. 40.🧺 Which of these is not needed for the dissolving test? (a) a comb (b) sugar (c) two clear glasses (d) a teaspoon

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