The Sun
The sun's innermost layer
core
The eighth planet from the sun.
Neptune
A small body of ice, rock, and cosmic dust that gives off dust in the form of a tail.
comets
Earth's major source of heat and light comes from this
The sun
This separates the inner planets from the outer planets
asteroid belt
The sun's outermost layer, which makes up the main part of the sun's atmosphere.
Hint: Cor
corona
The hottest planet in the solar system, due to the greenhouse effect.
Venus
A small, rocky body that travels through space.
meteoroids
The position Earth is from the Sun.
3rd
The number of planets in our solar system with no moons.
two
The coolest areas on the sun viewed as dark patches
sunspots
The planet with the greatest temperature range.
Mercury
Earth's natural satellite is called this.
'the moon'
The phase of matter that water must exist to sustain life as we know it.
liquid
The number of ALL of the stars in our entire solar system.
one
Surges of discharged energy that are produced along the sun's outer layer.
solar flares
The planet where the largest mountain in the solar system, Olympus Mons, is located.
Mars
A small, rocky body that travels through Earth's atmosphere and strikes the surface.
meteorite
The region of space that the Earth is located allowing for liquid water to exist.
goldilocks zone
A system that allows scientists to rate the hazard level of an object moving towards Earth.
Torino Scale
The main two gases that the sun is composed of.
hydrogen and helium
The only planet to rotate on its side.
Uranus
These "shooting stars" are small, rocky bodies entering Earth's atmosphere.
meteor
The many layers of gases that surround and protect Earth.
atmosphere
Everything in our Solar System is held together by this.
Sun's Gravitational Pull.