Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 694 · 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: powdered sugar dissolves slower. (a) True (b) False
2. 2.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a mirror (c) a magnet (d) two clear glasses
3. 3.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it became air (c) it vanished for ever (d) it sank as sand
4. 4.🥄 Which of these dissolves in water? (a) baking soda (b) small pebbles (c) sawdust (d) cooking oil
5. 5.True or false: small pebbles dissolves in water. (a) True (b) False
6. 6.🛟 How should you check if the sugar has dissolved? (a) taste it (b) smell it closely (c) look for leftover grains (d) poke it with a finger
7. 7.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a balloon (c) a teaspoon (d) two clear glasses
8. 8.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) warm water (c) cold water (d) a teaspoon
9. 9.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar in icy water (d) sugar stirred well
10. 10.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) False (b) True
12. 12.🔍 Which is the odd one out? (a) chalk powder (b) sand (c) cooking oil (d) baking soda
13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) True (b) False
14. 14.⚖️ 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 kind of sugar (c) the water temperature (d) the amount of sugar
15. 15.True or false: glucose powder dissolves in water. (a) True (b) False
16. 16.🥄 Which of these dissolves slower? (a) sugar in warm water (b) a big sugar cube (c) sugar stirred well (d) powdered sugar
17. 17.True or false: baking soda does not dissolve in water. (a) True (b) False
18. 18.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) sugar in warm water (d) a big sugar cube
19. 19.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
20. 20.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) the sugar turns to salt (c) some stays undissolved (d) the water turns solid
21. 21.True or false: a comb is needed for the dissolving test. (a) False (b) True
22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of sugar (b) the water temperature (c) time to dissolve
23. 23.🔍 Which is the odd one out? (a) sugar (b) food colour (c) table salt (d) sand
24. 24.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
25. 25.⚖️ 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
26. 26.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in warm water (c) powdered sugar (d) sugar in icy water
27. 27.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
28. 28.True or false: two clear glasses is not needed for the dissolving test. (a) False (b) True
29. 29.🥄 Which of these dissolves slower? (a) sugar stirred well (b) powdered sugar (c) sugar in warm water (d) sugar left unstirred
30. 30.⚖️ 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 keep it the same (c) we change it
31. 31.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) honey (c) warm water (d) two clear glasses
32. 32.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) add more water (c) let the water evaporate (d) stir it more
33. 33.True or false: cooking oil dissolves in water. (a) False (b) True
34. 34.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) two clear glasses (c) cotton wool (d) a clock or timer
35. 35.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
36. 36.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we measure it (b) we keep it the same (c) we change it
37. 37.True or false: powdered sugar dissolves faster. (a) True (b) False
38. 38.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) neither of them (c) both the same (d) the sugar cube
39. 39.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
40. 40.True or false: sugar is needed for the dissolving test. (a) True (b) False

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