Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 681 · 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 faster? (a) a big sugar cube (b) sugar in icy water (c) sugar left unstirred (d) sugar in warm water
2. 2.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
3. 3.🔍 Which is the odd one out? (a) sugar (b) table salt (c) glucose powder (d) cooking oil
4. 4.🥄 Which of these dissolves in water? (a) cooking oil (b) small pebbles (c) chalk powder (d) sugar
5. 5.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) not at all (c) the same (d) faster
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 water temperature (c) time to dissolve (d) the kind of sugar
7. 7.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) the sugar cube (c) powdered sugar (d) neither of them
8. 8.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a mirror (c) sugar (d) two clear glasses
9. 9.🧺 Which of these is needed for the dissolving test? (a) honey (b) cotton wool (c) warm water (d) a balloon
10. 10.🥄 Which of these dissolves in water? (a) cooking oil (b) chalk powder (c) food colour (d) sand
11. 11.True or false: a magnet is needed for the dissolving test. (a) True (b) False
12. 12.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we measure it (b) we keep it the same (c) we change it
13. 13.🥄 Which of these does not dissolve in water? (a) sugar (b) sand (c) glucose powder (d) food colour
14. 14.⚖️ 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 water temperature (c) the amount of water
15. 15.True or false: small pebbles 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 water temperature”? (a) we keep it the same (b) we measure it (c) we change it
17. 17.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) smell it closely (c) look for leftover grains (d) taste it
18. 18.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) powdered sugar (d) sugar left unstirred
19. 19.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
20. 20.🥄 Which of these does not dissolve in water? (a) sugar (b) glucose powder (c) cooking oil (d) table salt
21. 21.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a balloon (c) a clock or timer (d) warm water
22. 22.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) sugar (c) cotton wool (d) two clear glasses
23. 23.True or false: sugar in warm water dissolves slower. (a) True (b) False
24. 24.⚖️ 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
25. 25.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
26. 26.True or false: sugar left unstirred dissolves slower. (a) False (b) True
27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is kept the same. (a) False (b) True
28. 28.🔍 Which is the odd one out? (a) sand (b) chalk powder (c) sugar (d) small pebbles
29. 29.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
30. 30.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
31. 31.True or false: sugar dissolves in water. (a) False (b) True
32. 32.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) warm water is thicker (c) particles move faster (d) cold water is wet
33. 33.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) add more water (c) stir it more (d) let the water evaporate
34. 34.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is kept the same. (a) True (b) False
35. 35.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a magnet (c) cold water (d) a clock or timer
36. 36.🧺 Which of these is needed for the dissolving test? (a) honey (b) a magnet (c) cotton wool (d) a teaspoon
37. 37.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
38. 38.🔍 Which is the odd one out? (a) sand (b) sawdust (c) small pebbles (d) table salt
39. 39.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
40. 40.True or false: sugar stirred well dissolves faster. (a) True (b) False

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