What is the Big Bang Theory?

What is the Big Bang Theory?

What is the Big Bang Theory? Goals: Understand the theory of how the universe was formed Understand how Red Shift supports the big bang theory Write the following questions in your spiral.

Who discovered galaxies are moving away from us? What color are galaxies moving away from us? What is the afterglow left over from the big bang theory? What two things are needed to recreate a galaxy

True or False: the universe temp. is uniform What force formed when matter gathered early on in the universe? What force sculpted our universe? What are the 3 theories proposed that will happen to our universe? https://www.youtube.com/watch?v=1eePtgqReD4 Whats in an universe?

A collection of all existing matter energy, and space Stars (and Sun), planets, moons, galaxies, etc. Astronomers Think They

believe the universe was created 10-15 billion years ago. Billions of years ago, the Universe was very small, ball of gas. A huge explosion, (Big Bang), sent the entire universe flying out at incredible speeds. How did the big bang form galaxies? About

200 Million years later, Hydrogen and Helium joined to form stars. Stars were drawn together by gravity to form a family of stars called- GALAXIES How did the big bang form galaxies?

Within the big massive cloud of dust 4.6 billion years our cloud of dust and matter believed to collapse within itself sending out shock waves Resulting in the formation of a flatten disc shape that spun

How did the big bang form galaxies? 1. 2. Matter began clumping in different areas of the cloud Enough matter collided

and collected in the center and fused together from heat (energy) creating the sun Moons Asteroids Dwarf planets What Evidence do we have supporting a BIG BANG THEORY?

Several scientists believe this theory based on work off Hubbles redshift theory Red Shift? When the light from a galaxy is moving away from you, the wavelength light appears longer, it moves towards the red end of the spectrum. This is called RED SHIFT. http://physicsnet.co.uk/gcse-physics/red-shift/

Whats Red Shift?? Red Shift? When light from a galaxy is moving away from you, the wavelength of the light appears longer. On the electromagnetic spectrum red has a longer wavelength. So light from a moving away from us appears red.

Galaxies appear RED to us, therefore we know galaxies are moving away from a center point Check for understanding Complete the in class activity Place the images and word inserts into the

correct order Then answer the following exit ticket question What are the two main elements stars are made of? Based on what you know about waves explain why the universe would continue expanding Balloon Demonstration 1. Partially inflate a balloon. Twist the opening and hold it shut.

2. Draw and label four squares A,B,C, & D on the balloon. Measure the distance between the squares. Record the data. 3. Inflate the balloon to its fullest capacity. Repeat your measurements. Balloon Demonstration What happened to the distances between the dots as you inflated the balloon?

Did some of the dots move farther apart than others? Why? Suppose the balloon represents the universe. How does this activity show what is happening to the universe and to the galaxies in it?

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