Stars, Galaxies, and the Universe

Stars, Galaxies, and the Universe

Vocabulary Practice & Review

Star's Crash Course Video

https://www.youtube.com/watch?v=ld75W1dz-h0

Vocabulary

These are words you will need throughout our next unit! You can take notes as we go, or use this lesson in the future to study and refer back to.

How it works:

How it works:

• We will take a poll of what we think the word attached to the definition means

• Then we will analyze the vocabulary word and definition to come up with a consensus

Multiple Choice

Word 1:

The idea that the universe exploded and rapidly expanded from a single point is called the

• Solar System Theory

• Big Bang Theory

• Telescope Theory

• Sunset Theory

The Big Bang Theory!

The universe exploded (big bang) and then started rapidly expanding (spreading out) and created the universe we know today

Multiple Choice

Scientists believe the universe is still expanding because distant objects shift in frequency toward ___________ on the electromagnetic spectrum.

• blue

• yellow

• red

• white

Red Shift!!

Scientists believe the universe is still expanding because distant objects shift in frequency toward RED on the electromagnetic spectrum.

Multiple Choice

Word 2:

The farther away a galaxy is from Earth, the faster it is moving

• Newton's Law

• John's Law

• Hubble's Law

• Speed Law

Hubble's Law!!

If a galaxy is farther away from us, then it is moving at a greater speed.

Multiple Choice

Word 3:

A very young star with a core that is not hot enough for fusion to yet take place

• Young star

• Protostar

• Prestar

• Old star

Protostar!

"Proto" means young, therefor a protostar is a star that is young, and therefor is not very hot. Because of this, fusion can not take place so it does not expand as rapidly as older stars.

Multiple Choice

Which is the LARGEST vocabulary word??

• Atom

• Galaxy

• Planet

• Star

• Universe

The Universe!!!

The universe is all of space and time and their contents, including planets, stars, galaxies, and all other forms of matter and energy

Multiple Choice

Which is the SMALLEST vocabulary word??

• Atom

• Galaxy

• Planet

• Star

• Universe

An Atom!

An atom is the smallest unit of ordinary matter that forms a chemical element.

All matter is made up of atoms!!

Open Ended

What questions do you still have about stars, galaxies, and our universe?