Universe, Stars and Sun Vocab

Front

The number of particles in an object

Back

Mass

Front

Measures the amount of matter in an object AND gravitational pull

Back

Weight

Front

Measurement to find distances within our solar system

Back

Astronomical Unit

Front

Equal to the distance between Earth and Sun (93 million miles)

Back

Astronomical Unit

Front

Study of the universe: how it was formed and how it is changing

Back

Astronomy

Front

Made by ALL matter and energy that exists

Back

Universe

Front

Collection of stars, nebula, solar systems and other bodies in an area of space

Back

Galaxy

Front

Central star(s) an the objects that orbit it

Back

Solar System

Front

Large objects that:

1. 1. have a rounded mass

2. 2. orbit a star

3. 3. have a clear path with no other objects in its orbit

Back

Planet

Front

Natural satellite that orbits a larger body in space

Back

Moon