Universe and Distances
This theory started the formation of the Universe
What is the Big Bang
This object orbits a planet or non star object
What is a moon?
This part of a star determines it's life cycle
The longest of the three segments of time
Eon
The two types of dating
What are Absolute and Relative
What are the two units used to measure distances in space
Astronomical Units
Light Years
This is the shape of a comet's orbit
What is an ellipse/elliptical
The magnitude of a star refers to:
The brightness
The shortest of the three time segments
Periods
Fossil dating is a type of
Relative Dating
You would use these units to measure the distance for something outside of our solar system
What are Light Years
Venus is this type of planet
What is a rocky planet?
This type of Galaxy is shaped like a circle
What is Elliptical Galaxy
This era/eon takes up the majority of Earth's history
The three methods of dating are
Carbon Dating
Fossil Records
Rock Layers
The distance for a light year was found by
Measuring how far light travels in a year
This object is a small rock that has hit the Earth's surface
A meteorite
The comet has three parts. A core/nucleus, a tail, and:
A coma
What is the Law of Superposition
Which type of dating gives you the exact years ago something lived?
Absolute Dating
Name three results of the Big Bang
Redshift
Expansion of the Universe
Cosmic Background Radiation
Nebular Theory states this
What causes redshift
The expansion of the Universe
This is a fossil that has existed for a short period of time, but is widespread
What is an index fossil?
This method of dating uses how much of an object has decayed to determine how old it is
Carbon Dating