Big Bang theory 2024

Multiple Choice

A student adds a metal called calcium into the water. The observations are
no change in temperature

immediate bubbles forming.

What kind of change just ocurred?

• A chemical change occurred.
• A state change occurred.
• A physical change occurred.
• No change occurred at all.

Multiple Choice

2 students add different solutions into a beaker. The beaker starts fizzing violently. What kind of change is this?

• Physical Change

• Chemical Change

• No Change

• Temperature change

BIG BANG

SWBAT: Articulate how red/blue shifts are related to the Doppler Effect and relate it as evidence to the Big Bang theory. 

​ light shifted to longer wavelengths (the red end of the spectrum), indicating that the object is moving away from the observer.

Red Shift

​The shift of light to shorter wavelengths (the blue end of the spectrum), indicates that an object is moving toward the observer.

Blue Shift

​The afterglow radiation from the Big Bang, uniformly filling the universe, providing evidence for the Big Bang theory.

Cosmic Microwave Background

​The leading explanation for the origin of the universe, proposing that it began from an extremely hot and dense state approximately 13.8 billion years ago and has been expanding ever since.

Big Bang theory

​Picture this: a long time ago, all the stuff in the universe was squished into a tiny, super hot and dense point called a singularity. Then, BOOM! The universe started expanding like crazy in a process called cosmic inflation. It's like blowing up a balloon, but a gazillion times more

​

What is the big bang theory

As the universe expanded, it also cooled down. Just like when you leave your hot cocoa to cool, things started to come together. Atoms formed, and those atoms gathered to create stars, galaxies, and all the incredible things.

Now, here's the cool part that scientists found: when they look at faraway galaxies, the light they see is a bit reddish which is a microwave background. This is called redshift, and it's like a cosmic clue that tells us the universe is still expanding!

What is REDSHIFT?

​Doppler Effect: Imagine An ambulance getting near you. What do you think it sounds like?
What if it gets farther away?

​The frequency is higher when an object is getting nearer, but lower when it's getting farther away.
RED SHIFT is the lower frequency and blue is high

What is the Doppler effect?

Open Ended

After the event of explosion. The universe keeps expanding. What do you think we see most of around the universe? Redshift or Blueshift? Why do you think so?

Think, discuss, write

EXPLAIN your reasoning.

Blue - Blueshift- means more frequency which means the object of radiation is getting closer.

Red- Redshift- means less frequency which shows that the object is getting farther away.


THINK ALSO ABOUT FIRE: Which is hotter, blue or red fire?

​

Which color shows more energy?

Draw examples of each

Multiple Choice

A star is emitting red electromagnetic waves. What does this mean?

• The star is getting closer to us

• The star is getting farther away from us

• The star is staying the same spot

• The star is dying

Open Ended

In the 1900s they took a picture of the universe with a telescope. This picture captured many galaxies and stars. What it also captured was microwave electromagnetism. Which resulted as a red background.

Knowing this, what connection can you make between this picture and their theory of the Big Bang? does the picture support the Big Bang theory?

USE WORDS: Big Bang, Expansion, Red shift, and Cosmic Microwave background.

Voice Level 0

Work on this using your notes.

LINK: https://quizizz.com/join?gc=70790807

​

Independent Practice

EXIT TICKET