Astronomy Unit 1 Test Review

Which is a characteristic of the outer planets?

What do all of the inner planets have in common?

What theory does this model represent?

In the diagram which letter represents our solar system?

Which body is made primarily of rock or iron that enters Earth's atmosphere and hits the ground

According to the big bang theory, the universe originated as a

People sometimes talk about shooting stars. What do they actually see?

Which is a characteristic of the inner planets?

When a meteoroid enters Earth's atmosphere, it produces a streak of light called a

Newton's law of _____________: an object stays in motion unless an outside force acts on it.

Compared to the Earth’s Solar System, the Universe is inferred to be______

proposed the concept of a heliocentric system, the planets revolve around the sun

The Milky Way is a ____galaxy

In the night sky through a telescope you see s a bright circular object with a very long tail.

What are the shapes of the orbits of most comets?

The Sun’s position in space is best described as the approximate center of

Order these from largest to smallest:

List the planets in order of distance from the Sun.

Where is the asteroid belt located?