This is what science states existed before the Big Bang.
Nothing
This stellar nursery cloud of dust and gas that begins the process of formation of objects in the universe.
Nebula
The sun formed at the heart of this swirling cloud of condensing gas and dust.
Accretion Disk
This is the approximate age of planet Earth.
4.6 billion years
This is the chart that is used to breakdown Earth's lengthy history by examining changes in both fossils and stratigraphy.
Geologic Time Scale
This is the theory that suggests that Earth's continents sit on plates that are constantly in motion.
Plate Tectonic Theory
This is the underground substance igneous rock forms from.
Magma
Minerals have several important physical properties. This property is the least effective to use when trying to identify a mineral.
Color
In the immediate aftermath of the Big Bang, this process began causing the universe to expand.
Inflation
This is the process by which gravity allows larger objects to absorb the material of smaller objects.
Accretion
This is the main element that makes up the sun.
Hydrogen
This step of Earth's formation created the core, mantle, and crust by separating heavier elements from lighter ones.
Differentiation
This is the process used to arrange events in an order that uses exact numeric values.
Absolute Dating
Plates that interact by moving toward each other have this type of boundary.
Convergent
This geologic feature is where most visible igneous rock is formed.
Volcano
This is a minerals resistance to external force.
Hardness
The universe's size is currently doing this.
Expanding
This is the process by which objects form in an accretion disk.
Condensation
This is the process that combines hydrogen into helium.
Nuclear Fusion
This stage of Earth's formation brought the first drops of water to the planet.
Cratering
This is the process of creating a general order of events.
Relative Dating
Plates that move away from one another interact at this boundary type.
Divergent
This type of rock is formed from the breakdown of other existing rock.
Sedimentary Rock
This property describes how a mineral reacts to light.
Luster
This is the "echo" of energy left behind after the Big Bang.
CMB (Cosmic Microwave Background)
This is a swirling collection of dust and gas that will eventually become a solar system.
Accretion Disk
This is the process that moves energy from the sun's core to the photosphere.
Convection
This stage of Earth's formation helped to create both the atmosphere and the oceans.
Flooding
This technique of dating organic material is only effective up to about 50,000 years.
Carbon-14 Dating
Earthquakes happen primarily at this type of boundary.
Transform
This type of rock is made by adding heat and pressure to pre-existing rock.
Metamorphic Rock
This property is the more effective way to identify a mineral's color.
Streak
Jim Parsons, Kalee Cuoco, and Johnny Galecki star in this CBS comedy that ran for 12 seasons.
The Big Bang Theory
This is what forms at the center of an accretion disk.
A star
These are the two forms of energy the sun releases.
Radiation and heat
This is the most used source of evidence for the age of the Earth.
Meteorites
This is an event that marks a drastic decline in the population of living things on Earth.
This is the name of the large singular landmass that was once made up by all of the continents.
Pangaea
This type of rock is created from magma or lava.
Igneous Rock
This is the name of a mineral that has been cleaned, polished, and cut into a specific shape.
Gemstone
This is the term, coined by Edwin Hubble, to show how objects are moving away from each other.
Red Shift
This is the term given to the set of stars and planets that form from an accretion disk.
Solar System
This is a massive release of solar energy that can cause damage to natural and man-made systems on Earth.
Solar Flare or CME (Coronal Mass Ejection)
This is the name given to the planetary object that is believed to have struck the Earth and helped to create the Moon.
Theia
This is the study of the different layers of rock.
Stratigraphy
This is the theory supported by the creation of new ocean floor.
Seafloor Spreading
This system shows how each type of rock becomes another type of rock.
Rock cycle
This is the hardest substance known to man.
Diamond
This is the person responsible for the Big Bang theory.
Georges Lemaitre
This is the person responsible for the Nebular Theory
Pierre-Simon de LaPlace
This is the chart that shows the different types of energy released by solar activity.
Electromagnetic Spectrum.
This is the most important force when it comes to planet formation.
Gravity
This letter represents the youngest layer in this strata sample.
E (I)
This is the scientist responsible for the plate tectonic theory (originally called continental drift)
Alfred Wegener
This is the process that breaks down rock.
Weathering
This is a mineral that has a hardness of 7, a white streak, and can have a variety of colors including clear, purple, and rose.