SOLAR SYSTEM

Detailed explanation-1: -A meteor is a streak of light in the sky caused by a meteoroid crashing through Earth’s atmosphere. Meteoroids are lumps of rock or iron that orbit the sun. Most meteoroids are small fragments of rock created by asteroid collisions.

Detailed explanation-2: -Meteors. If a meteoroid comes close enough to Earth and enters Earth’s atmosphere, it vaporizes and turns into a meteor: a streak of light in the sky. Because of their appearance, these streaks of light are sometimes called “shooting stars.” But meteors are not actually stars.

Detailed explanation-3: -Friction can produce heat. This can be observed if you rub your palm against each other. Likewise, when a meteorite enters the earth’s atmosphere, the air applies a frictional force against the motion of the meteorite. Due to this frictional force, heat is produced and the meteor starts burning.

Detailed explanation-4: -They consist mainly of iron-nickel metal with small amounts of sulphide and carbide minerals. During the decay of radioactive elements in the early history of the solar system, many asteroids melted and the iron they contained, being dense, sank to the centre to form a metallic core.

Detailed explanation-5: -The small pieces of rocks which move around the sun are called meteoroids. Sometimes these meteoroids come near the earth and tend to drop upon it. During this process due to friction with the air they get heated up and burn. It causes a flash of light.