the four largest planets - Jupiter, Saturn, Uranus, and the closest planets to the Sun - Mercury, Venus, Earth, and Mars - that all have rocky crusts and dense mantles and cores

the path a planet follows

when a planet or moon travels once around an object

the imaginary line that passes through the center of a planet from pole to pole

when a planet or moon spins on its axis one time

a wide flat zone of small particles around a planet's equator

the shape of the planets' orbits in our solar system

a small icy object that produces a coma when it gets close to the Sun

small, solid, rocky bodies that orbit close to the Sun

small rocky or metallic objects that travel in space; parts of comets or asteroids

a space object that passes through Earth's atmosphere and reaches Earth's surface

when a particle enters Earth's upper atmosphere and the particle and the air around it become hot enough to glow in a brief streak of light

as planets get closest to the sun they move faster in their orbits

planets move around the sun in an elliptical motion not a circle

the farther from the sun, the longer it takes a planet to go around the Sun

the force of gravity depends on the size and the distance of objects involved

closest to the Sun, but not the hottest because it lacks an atmosphere

only planet to have water in all 3 states

thick atmosphere makes it the hottest

has largest mountain in the solar system

largest planet with a giant red spot left from a storm

Largest ring system

coldest planet and spins up and down

windiest planet

What four planets make up the inner planets?

What four planets make up the outer planets?

What are the characteristics of inner planets?

Outer planets have these characteristics.

Which direction do planets rotate around the Sun?