Review of the Life and Death of Stars

EPS 1.1 - 1.4 REview

Use this lesson to review for the upcoming quiz.

• ​Came to be 13.8 BILLION years ago!

• Universe = everything that exists, including things we cannot see

• ​The universe was created by the Big Bang

• ​The universe is expanding

• The universe is made of dark matter, dark energy, and regular matter.​

​

The Universe

Multiple Choice

How many years ago did the universe come to be?

• 13.8 hundred years ago

• 13.8 million years ago

• 13.8 billion years ago

• too long ago to know

Fill in the Blanks

The universe is currently

.

Multiple Choice

The universe is made of...

• dark matter

• regular matter

• dark energy

• all of the above

Open Ended

How was the universe formed?

• There are billions of stars in the Milky Way Galaxy (the galaxy where Earth is located)

  ​

• Our Solar System is located in the Orion Arm of the Galaxy

  ​

• There are countless galaxies in the universe, all different sizes and shapes ​

​

Galaxies

Fill in the Blanks

There are

of stars in the Milky Way Galaxy.

Multiple Choice

Which galaxy is our solar system located in?

• Andromeda Galaxy

• The Milky Way Galaxy

• Canis Major Dwarf Galaxy

• Triangulum Galaxy

​- ​Our solar system has 1 star: the Sun

- The planets in our Solar System were created by space matter spinning​ in a protoplanetary disc and, through accretion, larger masses began to orbit

- The sun is about 4.5 billion years old​

​

Solar Systems

​- ​The James Webb Telescope uses the sun shield to block heat from the Sun, Earth, and Moon and also blocks radiation in order to detect radiation from space objects

- The Sun produces energy through nuclear fusion​

- Telescopes in space help us detect wavelengths like x-rays and infrared radiation that our eyes cannot see​

Solar Systems

Fill in the Blanks

The number of stars in our Solar System is

.

Multiple Choice

The James Webb Telescope uses the sun shield to block out...

• heat and radiation

• cold temperatures

• light, like sunglasses

Multiple Choice

Our Sun produces energy by through...

• the burning of coal

• global warming

• carbon burning

• nuclear fusion

Fill in the Blanks

% of our Solar System's mass is from the Sun.

Multiple Choice

Space telescopes help us to detect...

• wavelengths we cannot see (x-rays and infrared rays)

• light waves

• only what we can already see

Fill in the Blanks

The Sun is

billion years old.

- Stars are made of hot gas

- Stars are blue when they are at their hottest temperature

- Sequence stars are born from nebulas (clouds of gas and dust)

- The MOST MASSIVE stars will become Black Holes

- The only star in our Solar System is the Sun

- Proxima Centauri is the closest star to the Sun, but it is NOT in our Solar System​

- Not all stars die the same way

• depending on their stellar mass, stars will follow different life and death patterns

​- After a supernova, either a nebula and neutron star OR Black Hole will form (this depends on how much mass is left over)

- A lightyear is a distance that light travels and is measured at 6 trillion miles, or 365 days

Stars & LightYears

​

Fill in the Blanks

Massive stars become

.

Multiple Choice

Stars are made of...

• rock

• hot gas

• hot liquid

• ice

Fill in the Blanks

The hottest stars are the color

.

Multiple Choice

__________ (clouds of gas and dust) form sequence stars.

• asteroids

• neutron stars

• nebulas

• protoplanetary discs

Multiple Choice

Is the star Proxima Centauri in our Solar System?

• Yes

• No

Multiple Choice

Do all stars die in the same way?

• Yes, star death is predictable.

• No, star life and death patterns depend on stellar mass

Multiple Choice

A lightyear is the distance light travels and is equal to 6 trillion miles, or _____ days.

• 365

• 720

• 1,000

• 90