Space

Front

What is the fourth planet from the Sun?

Back

Mars.

Front

What is a key difference between asteroids and comets?

Back

Asteroids are only rocky while comets are balls of ice, rock, and dust.

Front

What determines a star's brightness?

Back

The size of the star - the biggest stars are the brightest.

Front

What are some common characteristics of planets in our Solar System?

Back

They are nearly round, rotate on an axis, and have a rocky surface.

Front

What is a galaxy?

Back

A galaxy is a model that consists of gas, dust, and many stars.

Front

What is the largest planet in our Solar System?

Back

Jupiter.

Front

What is the closest planet to the Sun?

Back

Mercury.

Front

What do we call the path that planets take around the Sun?

Back

An orbit.

Front

What is the main component of the Sun?

Back

Hydrogen.

Front

What is a comet?

Back

A comet is a celestial object made of ice, dust, and rocky material that develops a tail when it approaches the Sun.