Cosmology
What is Cosmology?
The science of the origin and development of the universe
Land of the earth
Geoshpere
Earth's outer most layer
Crust
An area within a fluid where warmer material is rising in the center and cold material is sinking at the edge.
Convection cell
A large celestial body that is composed of gas that emits light.
Star
The collection of eight planets and their moons in orbit around the sun, together with smaller bodies in the form of asteroids, meteoroids, and comets.
The solar system
The weather conditions prevailing in an area in general or over a long period
Climate
The top portion of the mantle along with the crust; mostly ingeous rock
Lithosphere
What helps keep the Earth's heat inside the Earth?
Mantle
long-term warming of the planet's overall tempature
Global warming
Smaller nuclei fuse together to become larger nuclei
Nuclear Fusion
Any geological time period during which thick ice sheets cover vast areas of land
Ice age
At which plate boundary are volcanoes likely to form
convergent boundaries
How many cells circulate within Earth's atmosphere?
6
Sliding past each other
Transform boundary
A collection of stars, dust, and gas bound together by gravity
Galaxy
The trapping of the sun's warmth in the planets lower atmosphere
Greenhouse effect
Eon
A unit of time equal to a billion years
The energy source for convection in the mantle comes from?
The radioactive energy from the core
Heat driven cycles that occur in the air, ocean, and mantle
Convection currents
What is The Big Bang Theory?
The universe began as a single concentrated point of matter and energy that was propelled outward and has been expanding ever since.
rapid shifts in the climate could be caused by (only need one correct)
1. Volcanic eruptions
2. Meteoric impact
3. Abrut changes in ocean currents
4. Variations in solar output
Theory of plate tectonics
suggest that Earth's outer shell (lithosphere) is divided into several plates that glide over the Earth's rocky inner layer above the soft core (mantle)
The 3 places convection currents can occur
Air, ocean, and mantle.
How old is the slolar system
4.6 billion years ago