Astronomy

Front

What model does this represent?

Back

Heliocentric

Front

What is the Greek word for sun?

Back

Helios

Front

Hemisphere is

Back

One of the halves of the earth as divided by the equator.

Front

What is in the middle of the geocentric model?

Back

Earth

Front

Who discovered the Geocentric Model?

Back

Ptolemy

Front

What is the definition of a planet?

Back

A celestial body that orbits a star and is large enough to be rounded by its own gravity.

Front

What is the difference between a comet and an asteroid?

Back

Comets are icy bodies that release gas or dust; asteroids are rocky bodies that do not.

Front

What is the Milky Way?

Back

A spiral galaxy that contains our solar system.

Front

What is the significance of the equator?

Back

It divides the Earth into the Northern and Southern Hemispheres.

Front

What is a solar system?

Back

A collection of planets and other celestial bodies that orbit a star.