The only star in our solar system.

The 70% which makes up planet Earth.

The only satellite in our solar system with very common proper name.

Formerly known as our 9th planet, is now known as a dwarf planet or just a large rock circling in orbit around the sun.

The planets closest to the Sun and farthest from the Sun ... (in that order).

The two main gases in which the Sun is made up of.

The invisible layer which allows Earth to sustain life.

The first country to walk on the moon.

A large rock containing ice which shines when it is warmed up from the sun or Earth's atmosphere.

The planet with the most moons.

The surface of the Sun.

The moon.

The first country to explore the moon.

The largest rocks in our solar system not considered a planet or dwarf planet.

The planets with the hottest surface temperature and coldest surface temperature ever recorded...(in that order).

The reason the Sun keeps it shape and position in our solar system.

The reason the season's change.

When the full moon is lined up with Earth and the Sun to create the highest water level in the oceans.

The line in the sand which supports the theory an asteroid caused a mass extinction of the dinosaurs, many plants, and sea animals.

The planet with the most visible iron oxide.

The temperature at the Sun's core.

The most common gas in our atmosphere.

When the moon's shadow crosses the Earth's surface.

The name given to a rock which has broken off from an asteroid and has entered the Earth's atmosphere.

The largest planet in the solar system.