1. Spot The “Not” Game
Find the answer choice that is false in each group of solar system facts

2. Cluster 1
The Heliocentric Solar System was first proposed by Copernicus
The Geocentric Solar System was first proposed by Aristotle
The Heliocentric Solar System was first proposed by the Catholic Church.

3. Cluster 2
The Heliocentric Solar System was thought to be wrong because objects seek the center of the Universe, so we would fly off into space.
The Geocentric Solar System was thought to be wrong because of the retrograde motion of Mars.
The Heliocentric Solar System was thought to be wrong because the Sun would be much too hot.

4. Cluster 3
Copernicus was the first person to notice the retrograde motion of Mars
Ptolemy used mathematics to further support the Geocentric Theory
In a Geocentric Solar System, the Sun would be the fourth object from Earth

5. Cluster 4
“Epicycles” helped to support Mars’ retrograde motion in Ptolemy’s theory
The retrograde motion of Mars could not be explained by the Heliocentric model of a Solar System
An “epicycle” is an orbit within an orbit.

6. Cluster 5
Copernicus’ model of a Heliocentric Solar System was not originally supported by the Catholic Church.
Galileo’s support for Copernicus’ model caused him to be placed under house arrest.
Galileo was unusual for his time because he wrote in Italian rather than Hebrew.