Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 74 · 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 of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) a big sugar cube (d) sugar stirred well
2. 2.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) cold water is wet (c) sugar likes the dark (d) warm water is thicker
3. 3.True or false: sugar is not needed for the dissolving test. (a) False (b) True
4. 4.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
5. 5.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) True (b) False
6. 6.⚖️ 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 sugar (c) the kind of sugar (d) the water temperature
7. 7.True or false: sugar stirred well dissolves faster. (a) False (b) True
8. 8.🔍 Which is the odd one out? (a) cooking oil (b) food colour (c) small pebbles (d) sawdust
9. 9.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we change it (b) we measure it (c) we keep it the same
11. 11.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
12. 12.🧺 Which of these is needed for the dissolving test? (a) honey (b) cotton wool (c) a comb (d) a clock or timer
13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we change it (b) we keep it the same (c) we measure it
14. 14.True or false: sugar in icy water dissolves slower. (a) True (b) False
15. 15.True or false: table salt dissolves in water. (a) False (b) True
16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we keep it the same (b) we change it (c) we measure it
17. 17.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) a magnet (c) cotton wool (d) cold water
18. 18.⚖️ 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
19. 19.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
20. 20.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
21. 21.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) neither of them (c) the sugar cube (d) both the same
22. 22.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
23. 23.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) warm water (c) two clear glasses (d) a magnet
24. 24.🛟 How should you check if the sugar has dissolved? (a) taste it (b) look for leftover grains (c) poke it with a finger (d) smell it closely
25. 25.🔍 How can you get the salt back from salty water? (a) add more water (b) keep it in a fridge (c) let the water evaporate (d) stir it more
26. 26.True or false: cotton wool is not needed for the dissolving test. (a) False (b) True
27. 27.True or false: chalk powder dissolves in water. (a) False (b) True
28. 28.True or false: cotton wool is needed for the dissolving test. (a) True (b) False
29. 29.🥄 Which of these does not dissolve in water? (a) food colour (b) chalk powder (c) sugar (d) table salt
30. 30.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a teaspoon (c) sugar (d) a comb
31. 31.🥄 Which of these dissolves in water? (a) chalk powder (b) cooking oil (c) baking soda (d) sand
32. 32.🔍 Which is the odd one out? (a) cooking oil (b) sawdust (c) sugar (d) sand
33. 33.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
34. 34.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) sugar in warm water (d) a big sugar cube
35. 35.🥄 Which of these does not dissolve in water? (a) sand (b) glucose powder (c) food colour (d) table salt
36. 36.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) powdered sugar (d) sugar in icy water
37. 37.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) two clear glasses (c) warm water (d) a balloon
38. 38.⚖️ 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
39. 39.True or false: table salt does not dissolve in water. (a) True (b) False
40. 40.🥄 Which of these dissolves faster? (a) powdered sugar (b) sugar left unstirred (c) a big sugar cube (d) sugar in icy water

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