The third planet from the sun.
What is Earth?
Planet that is the fifth planet from the sun, and named after the Roman king of the gods
What is Jupiter?
The branch of science that deals with the physical universe beyond Earth's atmosphere.
What is Astronomy?
A satellite of Earth, and closest of all the astronomical bodies.
What is the moon?
Star that is about 93 million miles away, and estimated to be around 10,000 degrees Fahrenheit.
What is the sun?
Planet closest to the sun, and named after the Roman god of travel
What is Mercury?
Planet that is furthest from the sun, and named after the Roman god of the sea
What is Neptune?
The gaseous layer surrounding Earth or another heavenly body.
What is the atmosphere?
Sunlight hitting the Moon from various angles during its orbit around Earth, making visible only parts of it.
What are Moon phases?
Force that causes the planets of our solar system to orbit around our sun.
What is gravity?
The fourth planet from the sun, and named after the Roman god of war
What is Mars?
The seventh planet from the sun, and named after the Greek god of the sky.
What is Uranus?
A force of attraction existing between any two masses.
What is gravity?
The side of the Moon seen from the vantage point of the Earth and incorrectly called its "dark side".
What is the far side of the Moon?
One object revolving around another.
What is an orbit?
Planet that is 2nd closest to the sun, and named after the Roman goddess of beauty.
What is Venus?
The sixth planet from the sun, and named after the Roman god Saturnus.
What is Saturn?
A natural or artificial body orbiting a planet or star.
What is a satellite?
When Earth is between the Moon and the sun so that it casts a complete shadow on the Moon.
What is a lunar eclipse?
One trip(or complete revolution) around the sun.
What is a year?
Four planets closest to the sun that have few(if any) satellites.
What are the terrestrial planets?
Planets known as "gas giants" that have many satellites, and that also have rings.
What are Jovian planets?
An organized system of millions or billions of stars, gas, solar systems, and dust that are held together by gravitational attraction.
What is a galaxy?
The amount of light or radiation reflected by a surface, typically that of a planet or moon.
What is albedo?
Areas on the sun that are slightly darker and cooler.
What are sunspots?