Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 248 · 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: baking soda dissolves in water. (a) False (b) True
2. 2.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
3. 3.🧺 Which of these is needed for the dissolving test? (a) honey (b) two clear glasses (c) cotton wool (d) a comb
4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of sugar (b) the stirring (c) the water temperature (d) time to dissolve
5. 5.🧺 Which of these is not needed for the dissolving test? (a) a comb (b) a clock or timer (c) cold water (d) two clear glasses
6. 6.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
7. 7.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) sugar (c) a balloon (d) a mirror
8. 8.True or false: a magnet is needed for the dissolving test. (a) True (b) False
9. 9.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it became air (c) it vanished for ever (d) it spread in the water
10. 10.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) cold water (c) a clock or timer (d) honey
11. 11.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
12. 12.True or false: honey is needed for the dissolving test. (a) True (b) False
13. 13.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) warm water is thicker (c) particles move faster (d) sugar likes the dark
14. 14.🥄 Which of these dissolves in water? (a) small pebbles (b) baking soda (c) sand (d) chalk powder
15. 15.True or false: baking soda does not dissolve in water. (a) True (b) False
16. 16.⚖️ 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
17. 17.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
18. 18.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a friend who is running (c) a grown-up (d) nobody needs to
19. 19.🔍 How can you get the salt back from salty water? (a) stir it more (b) let the water evaporate (c) add more water (d) keep it in a fridge
20. 20.True or false: sugar dissolves in water. (a) False (b) True
21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we change it (b) we keep it the same (c) we measure it
22. 22.⚖️ 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 keep it the same (c) we measure it
23. 23.True or false: small pebbles does not dissolve in water. (a) True (b) False
24. 24.⚖️ 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 measure it (c) we change it
25. 25.True or false: honey is not needed for the dissolving test. (a) True (b) False
26. 26.🥄 Which of these does not dissolve in water? (a) table salt (b) sand (c) glucose powder (d) sugar
27. 27.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
28. 28.🔍 Which is the odd one out? (a) cooking oil (b) sand (c) glucose powder (d) small pebbles
29. 29.🥄 Which of these dissolves in water? (a) chalk powder (b) cooking oil (c) sawdust (d) food colour
30. 30.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) a big sugar cube (d) powdered sugar
31. 31.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) poke it with a finger (c) look for leftover grains (d) taste it
32. 32.🥄 Which of these dissolves faster? (a) sugar in icy water (b) powdered sugar (c) sugar left unstirred (d) a big sugar cube
33. 33.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar left unstirred (d) sugar stirred well
34. 34.🧺 Which of these is not needed for the dissolving test? (a) a balloon (b) sugar (c) a teaspoon (d) two clear glasses
35. 35.⚖️ 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) True (b) False
36. 36.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the water temperature (b) the amount of water (c) time to dissolve
38. 38.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar stirred well (d) sugar in icy water
39. 39.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
40. 40.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it settles at the bottom (c) it floats up (d) it dissolves

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