Expanding Universe
1 fish 2 fish, redshift, blueshift
Stars
Lifecycles
H-R Diagrams
100

This theory states the universe started as a hot, dense state then expanded in all directions.

What is... Big Bang Theory

100

Moving away means... (redshift/blueshift)

What is... redshift

100

This process combines 2 atoms to make 1.

What is... nuclear fusion

100

Most stars spend their entire lives in this stage

What is... Main Sequence

100

The x-axis on an H-R Diagram is what?

What is... Temperature/Color

200

How old is the universe said to be?

What is... 13.8 billion years old

200

Moving towards means... (redshift/blueshift)

What is... blueshift

200

What is the formula for nuclear fusion?

What is... Hydrogen + Hydrogen = Helium + Energy

200

What does a star run out of when it moves on to the Red Giant stage?

What is... Hydrogen?

200

they y-axis on an H-R Diagram is what?

What is... Luminosity

300

[Daily Double] What law states that when objects are farther away in space they are moving faster?

What is... Hubble's Law

300

When something is moving away its spectrum will shift to what side?

What is... The red side

300

Where does fusion happen in the star?

What is.. The core

300

High mass stars go into what stage after the red supergiant?

What is... Supernova

300
The hottest stars shine what color?

What is... blue

400

This element makes up 75% of all matter in the universe and was the first created after the universe cooled down enough.

What is... Hydrogen

400

The leftover radiation from the big bang is called what?

What is... Cosmic Microwave background

400

All stars start off as what?

What is... A nebula

400

[Daily Double] What element can high mass stars fuse up to?

What is... Iron

400

Where are the hottest/brightest stars located on an H-R Diuagram?

What is... the top

500

This method of astronomy allows us to see what Stars are made of and what direction they are moving relative to us.

What is... Spectroscopy

500

The very outer layer of the sun that can only be observed during a solar eclipse.

What is... the Corona

500

Nucear fusion produces energy in the form of these 2 things.

What is... heat and light

500

Why do low mass stars live longer lives?

What is... they use less fuel/energy

500

What does the H-R in H-R Diagram stand for.

What is.... Hertzsprung Russell