Big Bang vocab
What does constantly mean ?
always, continuously, over and over
What is the lowest layer?
Troposphere
northern lights/Aurora Borealis occur in this layer
Ionosphere
Solar system
A group of eight planets and their moons that orbit around the sun
what does it mean to see something
Visible
What does expand mean?
to increase in size, grow, spread
what is the hottest layer of our atmosphere
Thermosphere
most satellites orbit the Earth in this layer
Exosphere
Nuclear reaction
When a tiny part of an atom breaks apart and gives off a lot of energy.
a group of similar things that are close together
Cluster
What does process mean?
a series of steps or actions
What layer is in the middle
Mesosphere
it absorbs solar radiation, protects Earth from UV rays, and emits heat
what layer is this
Ozone layer
Atmosphere
A layer of gases around Earth that keeps us safe and helps support life.
closely packed together; compacted; crowded
Dense
What is an astronomer
a scientist who studies the heavenly bodies outside of Earth
what layer protects us from meteors
mesosphere
what is another name for Northern Lights, a natural light display in the night sky
Aurora Borealis
Satellite
an object that orbits a larger object
the amount of matter in an object
Mass
What is the Big Bang Theory?
The universe was a tiny ball until it exploded sending matter, space, and time flying in all directions
What layer have the northern lights
Ionosphere
the layer where weather occurs and where we live
Troposphere
Carbon dioxide (CO2)
An invisible gas, made of one carbon atom and two oxygen atoms.
a system of millions or billions(lots) of stars
Galaxy