Why a large bone can be strong but light?

Answer 1

Bone has two parts: a hard and strong outer shell composed of mainly calcium and other hard minerals, while the inside of the bone contains marrow, which is quite porous, and therefore light. In a sense, it's almost like bones are hollow, which is why they are light.

Answer 2

Bones have to be strong in order to support the body and the body's movements, as well as the impact bones take. When a person or animal runs, jumps, etc., that puts a lot of stress on the bones, so if they weren't strong, they would fracture under such pressure. Bones have to be light, otherwise it would be far more difficult to do the activities that people and animals do because the weight of the bones would impair the ability to do them. The extra exertion that would be required to do activities would put too much of a strain on the rest of the body, especially the heart and lungs.

Answer 3

the bones are light because when your walking your arms will get heavy and you will not be-able to lift them as much

Answer 4

Bones are light weight because the center of the bone is very soft. it is also strong because the outer cover of the bone is hard and tough.

Answer 5

It is hollow inside, or contains marrow.

Answer 6

i dont freaking know im not a dr

Answer 7

why a large bone be strong but light?{

Answer 8

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