Space

The study of the universe and everything in it is called

• Astronomy

• Astronomers

• cosmology

• cosmologist

People today believe in which of the following models?

• Geocentric model

• heliocentric model

Name the theory that scientists use to explain how the universe was formed.

This theory suggests that all space and matter in the universe existed as a single mass inside an extremely hot and dense bubble billions of years ago.

How many billions of years ago did this happen?

When the temperature cooled, the atomic matter combined to form elements. Name these 2 elements.

What force caused atoms to pull together to form different galaxies and solar systems?

Name 2 pieces of evidence that suggest the explosion occurred.

What do we call any natural body outside of the Earth's atmosphere?

What do we call something that can generate it's own heat and light and is made up of gas that is held together by it's own gravity.

A star is formed when something collapses in on itself due to it's own gravity. Name this something.