Solar System Theories / Models

Front

What is the geocentric model?

Back

The geocentric model is a theory that places Earth at the center of the solar system, with all other celestial bodies orbiting around it.

Front

What is the heliocentric model?

Back

The heliocentric model is a theory that places the Sun at the center of the solar system, with Earth and other planets orbiting around it.

Front

How many planets are in our solar system?

Back

There are 8 planets in our solar system.

Front

What tool do scientists use to study the solar system?

Back

Scientists use a telescope to study the solar system.

Front

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

Back

The main difference is that the geocentric model has Earth at the center, while the heliocentric model has the Sun at the center.

Front

Name the planets in our solar system.

Back

The planets in our solar system are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.

Front

What is an orbit?

Back

An orbit is the path that a celestial body takes as it moves around another body in space.

Front

What is a star chart?

Back

A star chart is a map of the night sky that shows the positions of stars and constellations.

Front

What is the role of gravity in the solar system?

Back

Gravity is the force that keeps planets in orbit around the Sun and moons in orbit around planets.

Front

What is a planet?

Back

A planet is a large celestial body that orbits a star and does not produce its own light.