a small rocky object that orbits the Sun
asteroid
the smallest part of an element
atom
the light that reaches the Earth
brightness
a giant ball of ice and dust
comet
a natural object outside the Earth's atmosphere.
celestial body
a group of stars that form patterns in the sky
constelllation
a very large hole in the ground caused by something that has hit it
crater
a celestial body in the Solar System that is similar to a planet but is not big enough to be classified as one.
dwarf planet
happens when one celestial body blocks the view of another. There are two types, lunar and solar
eclipse
a group of billions of stars, planets, gas clouds and rock held together by gravity
galaxy
the force which causes things to stay or fall to the ground.
gravity
a physical part of the Universe, consisting of solids, liquids and gases
matter
a fragment of an asteroid that enters the Earth's atmosphere.
meteor
the spiral galaxy where we live
The Milky Way
a large, spherical celestial body that moves around a star
planet
