5th Grade AIR Test SCIENCE Review!

Earth's distance from the sun

planets revolve around the sun in this shape of orbit (while it is nearly circular)

The number of major planets in our solar system

the reason the planets orbit the sun and moons orbit planets

metallic, rocky bodies that orbit the sun but are too small to be classified as planets

appears when a particle or chunk of metallic or stony matter called meteoroid enters Earth's atmosphere from outer space

a mixture of ices (both water and frozen gases) that are not part of planet

this is Pluto's new classification

a large planet composed mostly of gases, such as hydrogen and helium, with a relatively small rocky core. The ___________________of our solar system are Jupiter, Saturn, Uranus and Neptune.

rocky planet is a planet that is composed primarily of silicate rocks or metals. Within the Solar System, the ____________________________ are the inner planets closest to the Sun, i.e. Mercury, Venus, Earth, and Mars.

the first major optical telescope to be placed in space

a planet whose orbit lies within the asteroid belt, i.e., Mercury, Venus, Earth, or Mars.

a planet whose orbit lies outside the asteroid belt, i.e., Jupiter, Saturn, Uranus, or Neptune.

located between the orbits of the planets Mars and Jupiter. It is occupied by numerous irregularly shaped bodies called asteroids or minor planets.

an automated motor vehicle that propels itself across the surface of the planet Mars