Exploring the Geocentric and Heliocentric Models

What was the geocentric model's main idea?

• Stars revolve around the sun.

• Planets revolve around the moon.

• Earth revolves around the sun.

• The sun revolves around the Earth.

Who introduced the heliocentric model?

• Johannes Kepler

• Isaac Newton

• Galileo Galilei

• Nicholas Copernicus

What would need to change for the sun to orbit the Earth?

• The Earth's mass

• The sun's mass

• The moon's orbit

• The stars' positions

How would life be affected on a superheavy Earth?

• Trees would grow taller.

• Humans would grow taller.

• Humans would evolve to be shorter and stronger.

• Birds would fly higher.

What would happen to the seasons if the sun revolved around the Earth?

• Seasons would remain the same.

• One side would always be in sunlight.

• Seasons would be more extreme.

• There would be no seasons.

What is the significance of asking 'what if' in science?

• To confirm existing theories

• To disprove old models

• To explore new possibilities and understand why things are the way they are

• To create new laws of physics

What speed would the sun need to travel if it revolved around the Earth?

• 1 million km per hour

• 7 million km per hour

• 5 million km per hour

• 3 million km per hour