|Week 29 Vocabulary|
|1) Comet||A dirty snowball traveling through space that
forms a tail as it approaches a star.
Any object that is freely moving in our solar system but came from the asteroid belt between Jupiter and Mars.
Any rock from space that enters and is burned in
our atmosphere but passes through and strikes the Earth’s surface.
Any rock from space that enters our atmosphere
but is burned up completely in our atmosphere. As it burns it creates a
streak of light in the sky.
|5) Apparent Magnitude||A measure of the amount of light given off by a star as we see it from Earth.|
|6) Absolute Magnitude||
A measure of the amount of light that a star actually gives off from its surface.
|7) Crater||The bowl-shaped impression left on the surface of the Earth when a meteorite strikes it.|
The singular form of the word maria. It is one
single region of the dark volcanic material on the surface of the moon.
|9) Maria|| The
oldest material on the surface of the moon. It is dark in color and was
formed by ancient lava flows filling in craters on the moon.
|10) Oort Cloud||A
region beyond our solar system made of dust and gas which is believed to
be the birth place of many comets.