Solar System Study Guide

What is a solar system?

• Earth and other planets

• The idea that the sun is at the center of the universe

• All of the stars and the objects we know about

• A sun and the objects that orbit it

Who proposed that the Earth was the center of the known universe?

• Galileo Galilei

• Aristotle

• Plato

• Aristarchus

Who originally proposed that the Earth might revolve around the sun?

• Aristarchus

• Aristotle

• Nicholaus Copernicus

• Christiaan Huygens

What does heliocentric mean?

• If you put different lenses together, you can make a telescope

• The idea that the Earth is round

• The idea that the sun is the center of the solar system

• The idea that the Earth is the center of the solar system

The sun is so hot that most of the matter in it is what phase of matter?

• plasma

• gas

• liquid

• solid

What layer of the sun do we normally see?

• convection zone

• photosphere

• core

• corona

What layer of the sun is where nuclear reactions occur?

• core

• convection zone

• radiation zone

• corona

What is a cooler part of the sun called?

• coronal mass ejection

• sunspot

• solar flare

• northern lights

Which of the following statements about Earth's moon is correct?

• The moon is the only thing that causes tides on Earth.

• The moon looks the same size as the sun because they are the same size.

• The lunar highlands are the bright parts and the lunar maria are the dark parts.

• The moon and the Earth are made from completely different materials.

What is the soil on the moon called?

• maria

• regolith

• moonstones

• lunolith