Our Solar System Vocabulary Terms

A star and the group of planets and other celestial bodies that are held by its gravitational attraction and revolve around it

• Asteroids

• Milky Way Galaxy

• Solar System

• Nebulae

The attraction between two objects due to the invisible force of gravity; the ____________________ from the Moon is primarily responsible for the tides that form on Earth

• Gravity

• Gravitational Pull

• Mass

• Newton's Law

A celestial body that revolves around a planet

• Comets

• Sun

• Stars

• Moons

A curved path followed by a satellite as it revolves around an object

• Revolution

• Rotation

• Orbit

A large celestial body that revolves around a star in a solar system

• Planet

• Moons

• Comets

• Sun

A star and the group of planets and other celestial bodies that are held by its gravitational attraction and revolve around it

• Solar System

• Galaxies

• Planets

• Nebulae

The luminous star around which Earth and other planets revolve; composed mainly of hydrogen and helium

• Comet

• Sun

• Moons

• Nebulae

a model in which earth is the center of all motion in the sky

• Heliocentric model of the solar system

• Geocentric model of the solar system

• Big Bang Model of the solar system

• Steady State Model of the solar system

This scientist proved Copernicus' theory that the sun was the center of the solar system and developed the modern experimental method.

• Edwin Huble

• Fred Hoyle

• Albert Einstein

• Galileo Galilei

model based on the idea that the sun is the center of the universe--first proposed by Copernicus and later proven by Galileo

• Heliocentric Model of the Universe

• Geocentric Model of the Universe

• Big Bang Model of the Universe

• Steady State Model of the Universe