Earth In Space

The ____ comprises the Sun and its orbiting bodies, including planets, asteroids, and comets. The Sun is the largest object in it, approximately 1.3 million times the size of Earth.

• solar sytem

• universe

• galaxy

moons that orbit the planets

• Meteoroids

• Dwarf Planets -

• Satellites

• Asteroids

• Comets

rocky bodies, smaller than a planet but larger than 1 meter, in the Sun's orbit

• Meteoroids

• Dwarf Planets -

• Satellites

• Asteroids

• Comets

objects that meet some but not all of the criteria of a planet

• Meteoroids

• Dwarf Planets -

• Satellites

• Asteroids

• Comets

rocks, smaller than asteroids, moving through space 

• Meteoroids

• Dwarf Planets -

• Satellites

• Asteroids

• Comets

objects made of ice and dust, commonly followed by a "tail" of gas and dus

• Meteoroids

• Dwarf Planets -

• Satellites

• Asteroids

• Comets

The terms Small Solar System bodies (SSSBs), planetoids, and minor planets are used to describe non-planetary objects in the solar system.

• True

• False

The solar system has eight major planets. To be considered a planet, a celestial body must:

• have temperature over 20

• 1. orbit around a star 

• 1. have enough gravity to maintain a nearly round shape

• 1. keep its orbit clear of other bodies of similar size

The four inner planets, close to the Sun, are relatively ___ and ___.

• small

• gases

• larger

• rocky

The four outer planets, further from the Sun, are relatively ___ and ___.

• small

• gases

• larger

• rocky