Compare and contrast a meteoroid, meteor, and meteorite. A meteoroid is a small solid particle that travels through space, if they burn up in earth's atmosphere they are called meteor. A meteoroid that actually reaches Earth's surface is called a meteorite.
Answer: When meteoroids enter Earth's atmosphere (or that of another planet, like Mars) at high speed and burn up, the fireballs or “shooting stars” are called meteors. When a meteoroid survives a trip through the atmosphere and hits the ground, it's called a meteorite.
She walked down 2 flights, then up 3 flights. This would cause her to be 1 floor above her floor. So, she would have to walk down 1 flight (hence the negative in the -1) and she would be on her floor.
