Solar System

A planet that appears reddish-yellow due to the iron oxide in its rocks is __.

An object in the outer solar system made of ice and rock is most likely a __.

Small pieces of rock that enter Earth atmosphere and burn up are called?

All of the following are requirements of an object to be a planet except __.

__ is the third planet from the Sun.

The Solid portion of a comet is called its __.

A comet develops a tail because of __.

The order of the inner planets outward from the Sun is

Water found as a solid, liquid, and gas on

The orbits of __ lie closer to the Sun than does Earth's orbit.

Evidence suggests that some _ originate in the Oort cloud located at the solar system's edge.

The planet with the lowest density and hundreds of thin rings is __.

Planets formed from _ left over from the formation of the Sun at the center of the cloud.

Scientist hypothesize that the Sun formed __.

At times, the dwarf planet ___ is actually closer to the Sun than Neptune.

__ for a planet to form in the asteroid belt.

Johannes Kepler discovered that the orbits of planets are __.

Smaller pieces of rock from old, broken up comets become __.

People once believed that all planets and stars orbited around __.

__ axis of rotation is nearly parallel to the plane of its orbit.

An object orbiting the Sun was found to be comprised rock, iron and nickel with craters its an

The objects people refer to as shooting starts are often __ burning up in the atmosphere.

Where is the asteroid belt located?

Methane gives ____ their blue-green color.

__ are pieces of rock that strike the surface of a moon or planet.

This planet has no true atmosphere

Vaporized gases and released dust form a bright cloud around the solid part of a comet called a

In 1543, _ published his views of Earth and other planets revolving around the Sun.

The Great Red Spot, a continuous storm, is located on the planet __.

The proper arraignment of the solar system is __.

Solar energy trapped by gases in Venus's atmosphere causes __.

__ is the largest planet in our solar system.

The planet that averages 150 million km or one AU, from the Sun is __.

An object in the outer solar system orbiting a planet that is round and has an atmosphere is a 

A new object orbiting 3 AU's from the Sun, would orbit how compared to Earth?

If we found a new planet that was smaller than venus, rocky with a thin CO₂ atmosphere it is a

The structure of a comet is considered to be like a large _, or mass of frozen ice and rock

Two of the inner planets are ___.

The most likely distance from the Sun in astronomical units for the planet Venus is __.

As you move away from the sun, the revolutions rate ____.