SCIENCE SOLAR SYSTEM

bodies of rock and ice in space

ASTEROID

millions of asteroids orbit the

SUN

the layer of gas around a planet

ATMOSPHERE

body of ice, dust, and bits of rock that passes through space leaving a tail of ice and dust behind it.

COMET

the force that attracts moon to a planet, or a planet to a star

GRAVITY

a small piece of debris in space, up to a size of a boulderr

METEOR

a large body of rock or gas that follows a consistent orbit around a star

PLANET

objects, from tens to hundreds of kilometers in diameter

PLANETESIMALS

a shooting star is a

METEOR

the sun and the collection of stars

SOLAR SYSTEM

the cloud of gas and dust from which the solar system formed

SOLAR NEBULA

a huge ball of very hot gasses held together by gravity

STAR

contains 99.9% of all the mass of the solar system.

SUN

the force of attraction between two objects with mass

GRAVITY

refers to an objects resistance to change in motion

INERTIA

the moon’s gravity is - of the earth’s.

1/6

the innermost planet, orbits the sun for about?

MERCURY, 3 MONTHS

the asteroid belt is located between

MARS AND JUPITER

model of the solar system where the sun is its center

HELIOCENTRIC

model of the universe in which earth is at the center

GEOCENTRIC

object in the solar system that is made of frozen gasses and solid rock.

COMET