C4L6: Models Of The Solar System

Question 1

What does geocentric mean?

Answer 1

Geocentric means “centered on the Earth.”

Question 2

What does heliocentric mean?

Answer 2

Heliocentric means “centered on the Sun.”

Question 3

Explain how the heliocentric model developed over time.

Answer 3

The heliocentric model was first only depicted by the theory that the planets revolved around the Sun. Later, it focused a little more on the arrangement of the planets and how they moved around the Sun. Then, it was discovered that planets orbit elliptically around the Sun.