Drag each item to the correct location:
Geocentric Model
- Earth is at the center of the solar system.
- Includes eight planets.
- The orbits of the planets are circular.
- The orbits of the planets are elliptical.
Heliocentric Model
- The Sun is at the center of the solar system.
- Includes five planets.
- The orbits of the planets are elliptical.
Why does the speed of a planet decrease as it moves away from the sun?
Answer: The direction of the sun’s pull relative to the planet’s motion changes.