Stars, Galaxies, and Universes Vocabulary

Stars, Galaxies, and Universes Vocabulary

A review from yesterday

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

Vocabulary

These are words you will need throughout our next unit! There is a graphic organizer for you to use in our Schoology folder to keep track of them.

How it works:

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

• Then we will look at the word and definition in depth

Poll

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

• Chicken Theory

The Big Bang Theory!

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

Poll

Word 2:

When light in distant objects shift in frequency

• Blue Shift

• Green Shift

• Doppler Shift

• Shirt Shift

Doppler Shift!

When light from distant objects in the universe shifts (moves) to the red end of the visible specturm, the object is moving away from us

Poll

Word 3:

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

• Newtons Law

• Johns Law

• Hubbles Law

• Speed Law

Hubbles Law!

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

Poll

Word 4:

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

• Old star

• Young Star

• Prestar

• Protostar

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.

Poll

Word 5: A device that measures the spectrum of light

• Flashlight

• Spectrscope

• Starlight

• Microscope

Spectroscope!

Device used by scientists to see the light ( visible spectrum) an object emits

Poll

Word 6: A system of two stars orbiting one another

• Two Star System

• Rotation System

• Binary Star System

• Whirly System

Binary Star System!

When two stars orbit (rotate) around one another. Pefix "bi-" means two

Poll

Word 7:

A very large group of stars

• galaxy

• universe

• solar system

• star cluster

Star Cluster!

A group of stars that are very large in number and sometimes they get names (constellations)

How did you do?!?

Now go to Schoology, fill out the graphic organizer, and take the quiz to show me what you know!