Outer Planets

Moons

Inner Planets

The Solar System, because it includes all the planets

The Solar System, because the Sun is the biggest star

The Milky Way, because it contains more than 200 billion stars including the Sun and solar system

The Milky Way, because it contains only stars

Comet

Asteroid

Meteor

Moon

A small rocky or metallic object that orbits the Sun

A meteoroid that enters the Earth's atmosphere(Shooting Stars)

A meteor that strikes Earth's surface

Strike the Earth's surface

Are meteoroids that enter Earth's atmosphere

Are small rocky or metallic objects that orbit the Sun

Strike the Earth's surface

Enter Earth's atmosphere

Are small rocky or metallic objects that orbit the Sun

gas giants because they consist mostly of gas

terrestrial or rocky planets because they are mostly made of rock

Comets

Jupiter because it is an outer planet

Earth because it has oxygen and liquid water

Mercury because it is closest to the sun

Venus because it has many volcanoes

Have evidence of life

Have black holes

Lack planets

Move around a central point

Meteoroids

Meters

Meteorites

Galaxy

Star

Comet

Gravity

in front of

behind

on top of

next to

the weight of air

a larger region of space

the force of attraction between two objects.

An asteroid contain mostly rock and metal. A comet is mostly rock, ice and dust

An asteroid is made of rock,ice and dust. A comet is made of rock and metal.

An asteroid orbits the sun and comets orbits the moon

True

False

Mars, because it has two small moons and shows evidence of water

Venus, because its atmosphere is made of carbon dioxide and has many volcanoes

Mercury, because it is very hot and has many craters.

Jupiter, because it is very large and made of gases.

True

False

A star that orbits the Earth

A rocky mass that orbits the Sun

A rocky mass that orbits the Moon

A small comet with a tail that orbits the Sun