Small, icy objects that orbit the Sun, and develop a tail as it nears the Sun

Object that orbits the Sun, is nearly spherical in shape, and shares its orbital path with other objects of similar size

Streak of light produced by a meteoroid as it passes through Earth's atmosphere

Solid bits of debris that travels through the solar system

The moon is

A Planet is:

The first step in the Scientific Inquiry process is:

According to this theory, the Universe formed from a single point and is still expanding

Light Years are:

A sphere of very hot, burning gases

A huge collection of stars, gas, and dust

Which property of the Outer Planets is true?

Astronomers prefer to observe the sky during moonless nights. Which phase of the Moon would be best for their observations?

What objects in the solar system are larger than Earth?

Pluto is an example of what kind of Planet?

Which planet is closest to the Sun?

What is the 5th planet from the Sun called?

What planet is the only planet with 21% oxygen?

What planet is the third largest planet in our solar system?

Which planet rotates on its side?

This planet is known as the Red Planet because of the iron minerals in the soil:

Which planet in our solar system is the hottest?

This planet is also known as "The Evening or Morning Star."

This planet's rings rotate up and down.

This planet is the most distant planet from the Sun.

The Borealis Basin is found of this planet.

This planet rotates faster than any other planet in our solar system.

The only planet with liquid water on it is

A small planet with a diameter of 3,100 miles

This planet has the largest mountain in our solar system, Olympus Mons.

This planet is the second largest planet

This planet is the furthest from Earth that can be seen without a telescope.

This planet is 300 times the mass of Earth

This planet is 93 million miles from the Sun

The bright globe of this planet is surrounded by gaseous rings.

This planet is closest to Earth

This planet is the second smallest planet

This planet takes 365 1/4 days to orbit the Sun

This planet is most similar to Earth

This is the stormiest planet

This planet was named after the Roman god of the sea.

This planet is the second planet from the Sun

The reason that Pluto isn't considered a planet anymore is because