Ananya placed an egg in a glass of fresh water. The egg sank to the bottom. She then removed the egg, and dissolved 6 teaspoons of sugar in the water. Now, she replaced the egg gently in the water and the egg floated. Which of the following is this similar to?
1 When milk is heated, it rises and boils over.
2 Ships traveling from a river to the ocean rise higher.
3 Mountain resorts are generally cooler than places at sea-level.
4 The stem of a plant grows vertically up, while its roots grow vertically down.
Answers
Answer:
2
Explanation:
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Answer:
The experiment with the egg in the glass of fresh water that sank and then floated after sugar was added is similar to the process of making sugar syrup. When sugar is dissolved in water, it increases the density of the water, which makes it more buoyant. This is similar to the process of sugar syrup being made by dissolving sugar in water.
Similarly, the egg, which was denser than the fresh water, sank to the bottom. But after sugar was added and the water became more dense, the egg became more buoyant and floated to the top.
This experiment does not resemble the other options, such as the boiling of milk, the rising of ships, the temperature difference between mountain resorts and sea-level, and the growth of plants, as these are all different processes that do not involve changes in density or buoyancy.
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