Semester Review: Astronomy

Front

Why is making a model of the solar system difficult?

Back

The solar system is so big and the objects in it are so small in comparison

Front

When the solar system was young, new materials were added to the planets by...

Back

impacts of smaller objects.

Front

How many stars are in our solar system?

Back

1

Front

What six things make up our Solar System?

Back

Sun, Planets, Moons, Asteroids, Comets, Meteors

Front

What word is used to describe the time it takes an object to orbit around the Sun?

Back

Revolution

Front

Why is Pluto not a planet?

Back

It has not cleared the neighborhood around its orbit of smaller objects. Gravity not strong enough to accomplish this task.

Front

The theory that all celestial objects revolve around the sun is called what?

Back

Heliocentric Theory

Front

What is the area in the outer edge of our solar system beyond Neptune called? Dwarf planets such as Pluto orbit in this area of our solar system.

Back

Kuiper Belt

Front

Order from smallest to largest: planet, solar system, galaxy, universe

Back

planet, solar system, galaxy, universe

Front

How can you tell the difference between moons and planets?

Back

Planets orbit around stars, moons orbit around planets.