Solar System Theories / Models

Front

What tool do scientists use to study our solar system?

Back

Telescope

Front

What theory does the heliocentric model represent?

Back

Heliocentric Theory

Front

What is the Big Bang Theory?

Back

A theory that says the universe began as a small point that expanded rapidly about 14 billion years ago.

Front

What is the main difference between the heliocentric and geocentric models?

Back

Whether the Earth or the Sun is located at the center of the solar system.

Front

How many planets are there in our solar system?

Back

8

Front

What does the term 'geocentric' mean?

Back

A model of the solar system where Earth is at the center.

Front

What does the term 'heliocentric' mean?

Back

A model of the solar system where the Sun is at the center.

Front

What is a planet?

Back

A celestial body that orbits a star and is large enough to be rounded by its own gravity.

Front

What is an asteroid?

Back

A small rocky body that orbits the Sun, mostly found in the asteroid belt between Mars and Jupiter.

Front

What is a comet?

Back

A small icy body that, when passing close to the Sun, heats up and begins to release gases, forming a glowing coma and sometimes a tail.