earths place in the solar system unit 10 assi 1

Approximately, how far is the earth from the Sun?

150,000,000 km

How many planets in our solar system

8

1 A.U.

= 150,000,000 km

The largest planet is _____.

Jupiter

astronomical

a unit of measurement based on the average distance of the earth from the sun; one unit equals 149.6 million kilometers

planet

an object that orbits the Sun, is spherical, and has cleared its orbit of other large objects

dwarf planet

an object that orbits the sun and is large enough for its gravity to make it spherical but that is too small to have cleared its orbit of all other large objects

For which of the following measures is Earth's the highest compared to the other planets in our Solar System?

density

The earth is the _____ largest planet.

fifth

Astronomical unit

the distance from the Sun to the earth

terrestrial

the four inner planets; named for their rocky crusts

gas giants

the four outer planets of the solar system; named for their high concentrations of hydrogen and helium

Which of the following criteria do astronomers use to classify an object as a planet?

the object orbits a star Its gravity makes the object spherical. The object clears its orbit of other objects.