8th grade 2.1 Flashcard

Front

How long does it take for the Earth to revolve once around the Sun?

Back

One year.

Front

What is the term for the time it takes for a planet to complete one orbit around the sun?

Back

Year.

Front

When can an eclipse involving the Sun, Earth, and Moon occur?

Back

Only when they are nearly in a straight line.

Front

What do the inner planets, also known as terrestrial planets, have in common?

Back

They are all small and rocky.

Front

What is the largest body in our solar system?

Back

The Sun.

Front

What are the four terrestrial planets in our solar system?

Back

Mercury, Venus, Earth, and Mars.

Front

What is the difference between a solar eclipse and a lunar eclipse?

Back

A solar eclipse occurs when the Moon passes between the Earth and the Sun, while a lunar eclipse occurs when the Earth passes between the Sun and the Moon.

Front

What is the main component of the Sun?

Back

Hydrogen.

Front

What is the significance of the asteroid belt?

Back

It separates the inner terrestrial planets from the outer gas giants.

Front

What are gas giants?

Back

Planets that are large and composed mostly of gases, such as Jupiter and Saturn.