1. Astronomy Terms-Copy & define these terms to be placed in flipbook
Geocentric model: places the Earth at the center of the universe with the Sun, Moon, stars, and planets circling it.
Heliocentric model: This system places the Sun at the center of the Solar System with the Earth and all the other planets orbiting it.
Orbit: curved path followed by a satellite as it revolves around an object.
Rotation: spinning of an celestial object on its axis; causes night and day
Revolution: orbital motion of one body around another in space
Big Bang: theory that states that the birth of universe began as a small, dense, intense point full of energy.
Law: Idea that has been tested over time (trials); has been universally accepted. Ex. Newton Laws of motion
Theory: Based on observation and can be changed; Statements that explain a phenomenon which is commonly regarded as correct

2. Example of rotation

3. For example: Heliocentric model: You may have something like this…….
Astronomy Terms:
For example: Heliocentric model: You may have something like this…….

4. Heliocentric vs. Geocentric