Unit 7 Lesson 3 Vocabulary: The Origin of the Universe

Front

Space and all of the matter and energy in it

Back

Universe

Front

Smallest of the large scale structures of the universe and consists of at least one star and the objects that orbit it

Back

Solar System

Front

A large scale structure of the universe made up of a group of stars bound together by gravitational attraction

Back

Star Cluster

Front

A large scale structure of the universe that contains millions to billions of stars

Back

Galaxy

Front

A large scale structure of the universe made up of dozens of galaxies

Back

Galaxy cluster

Front

A large scale structure of the universe made up of hundreds of galaxies

Back

Supercluster

Front

A scientist who developed the law of universal gravitation

Back

Issac Newton

Front

A scientist who developed the theory of special relativity and the theory of general relativity

Back

Albert Einstein

Front

A scientist who used Einstein’s equations to show that the universe is expanding

Back

Georges Lemaitre

Front

An American astronomer who was the first to present observational evidence that the universe is expanding

Back

Edwin Hubble