Because they are going at very high speeds. Things cannot burn in space, because there is no oxegen.
When meteoroids enter Earth's atmosphere, they are called meteors. This term refers to the bright streak of light produced as they burn up due to friction with the atmosphere. If a meteoroid survives its passage and lands on Earth, it is then referred to as a meteorite.
When small pieces of rock moving through space enter Earth's atmosphere and burn up, they are called meteoroids.
That depends. Meteoroids are pretty cold when they float around in space. When they enter our atmosphere, they get super hot and usually burn up in the thermospere.
MESOSPHERE
comets and asteroids
The mesosphere is the atmospheric layer that protects the Earth from meteoroids. As meteoroids enter the Earth's atmosphere, they burn up in this layer due to friction with air molecules, preventing them from reaching the surface.
... compresses the air in front and around it so that the air glows and at night you see a "shooting star" - a meteor. If it impacts the ground before evaporating, it is a bolide and may leave a mineral remnant called a meteorite.
"where the oxygen level increases then combustion takes place"
Comets have tails as they consist mainly of ices, which vapourise when the comet approaches the sun, taking some of the dust off with it. Meteoroids are mainly made of rock, their surfaces tend to stay intact, so they don't have tails.
Debris from the solar system that strikes the Earth is known as meteoroids. When meteoroids enter the Earth's atmosphere and burn up, they are called meteors or shooting stars. If a meteor survives its journey through the atmosphere and lands on Earth, it is called a meteorite.
Meteoritesis what we call stones that enter the earths atmosphere.
The Earth has an atmosphere around it.The Thermosphere is the top-most layer of the atmosphere.The troposphere is the lowest part of the atmosphere.Unlike Earth,the Moon has no atmosphere.That's why meteoroids don't burn up before they hit the surface.Even though the Earth's atmosphere is immense,sometimes meteoroids get through the atmosphere.