Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 250 · 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: sawdust does not dissolve in water. (a) True (b) False
2. 2.True or false: sugar in icy water dissolves faster. (a) True (b) False
3. 3.🔍 Which is the odd one out? (a) cooking oil (b) sawdust (c) food colour (d) sand
4. 4.🧺 Which of these is needed for the dissolving test? (a) sugar (b) a comb (c) a balloon (d) a mirror
5. 5.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in warm water (c) powdered sugar (d) a big sugar cube
6. 6.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
7. 7.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a balloon (c) cold water (d) cotton wool
8. 8.🛟 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
9. 9.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) cold water (c) a balloon (d) two clear glasses
10. 10.⚖️ 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
11. 11.True or false: table salt dissolves in water. (a) False (b) True
12. 12.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) honey (c) warm water (d) two clear glasses
13. 13.🔍 Which is the odd one out? (a) chalk powder (b) glucose powder (c) sand (d) cooking oil
14. 14.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
15. 15.True or false: sugar stirred well dissolves slower. (a) True (b) False
16. 16.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it spread in the water (c) it vanished for ever (d) it became air
17. 17.🔍 Which is the odd one out? (a) food colour (b) table salt (c) glucose powder (d) sand
18. 18.True or false: cold water is not needed for the dissolving test. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) chalk powder (b) sawdust (c) sugar (d) sand
20. 20.⚖️ 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) time to dissolve (c) the stirring
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 water temperature (b) the kind of sugar (c) time to dissolve (d) the amount of sugar
22. 22.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar stirred well (d) sugar left unstirred
23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we keep it the same (b) we change it (c) we measure it
24. 24.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
25. 25.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) two clear glasses (c) cotton wool (d) a teaspoon
26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) True (b) False
27. 27.🥄 Which of these does not dissolve in water? (a) food colour (b) glucose powder (c) small pebbles (d) sugar
28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the stirring (b) time to dissolve (c) the water temperature (d) the amount of sugar
29. 29.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we keep it the same (b) we measure it (c) we change it
30. 30.🥄 Which of these dissolves in water? (a) small pebbles (b) food colour (c) chalk powder (d) sawdust
31. 31.True or false: food colour dissolves in water. (a) True (b) False
32. 32.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar stirred well (d) sugar in icy water
33. 33.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
34. 34.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
35. 35.🧺 Which of these is needed for the dissolving test? (a) honey (b) a balloon (c) warm water (d) a mirror
36. 36.⚖️ 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
37. 37.🧺 Which of these is needed for the dissolving test? (a) two clear glasses (b) a mirror (c) honey (d) a comb
38. 38.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) powdered sugar (c) both the same (d) the sugar cube
39. 39.🧺 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 teaspoon
40. 40.🔍 Which is the odd one out? (a) baking soda (b) sand (c) sawdust (d) cooking oil

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