Solar System (19)

Asteroid

• millions of small, rocky objects that orbit the Sun in the asteroid belt between the orbits of Mars and Jupiter.

• made of gas, dust, and ice and moves around the sun in an oval-shaped orbit.

• the average distance from Earth to the Sun.

• The time it takes an object to travel once around the sun.

Comet

• millions of small, rocky objects that orbit the Sun in the asteroid belt between the orbits of Mars and Jupiter.

• made of gas, dust, and ice and moves around the sun in an oval-shaped orbit.

• the average distance from Earth to the Sun.

• The time it takes an object to travel once around the sun.

The time it takes an object to travel once around the sun.

• Astronomical Unit

• Period of Rotation

• Period of Revolution

• Green house effect

The planets closest to the sun, made of metal and rock, and have a solid outer later.

• Asteroid

• Gas Giant

• Astronomical Unit

• Terrestrial Planet

Occurs when a planet's atmosphere traps solar energy and causes the surface temperature to increase.

• Gas Giants

• Terrestrial Planet

• Greenhouse Effect

• Period of Rotation

The four largest moons of Jupiter-Io, Europa, Ganymede, Callisto- made of rock and ice.

• Galilean moons

• Astronomical unit

• Solar System

• Inner Planets

A meteoroid that strikes a planet or a moon.

• Meteroite

• Meteor

• Comet

• Asteroid

A round depression formed on the surface of a planet, moon, or other space object by the impact of a meteor.

• meteor

• impact crater

• Saturn

• Gas giant

Small, rocky particle that moves through space.

• impact crater

• astronomical unit

• terrestrial planet

• meteoroid

A streak of light in Earth's atmosphere made by a glowing meteoroid.

• Galilean moons

• asteroid

• meteor

• period of rotation