ASTRONOMY -COSMOLOGY

Big Bang Theory

• Our universe formed 13.7 billion years ago

• _________ is a collection of billions of stars. There are 3 types of galaxies: spiral, elliptical and irregular.

• Our solar system is a part of the

• Our solar system is located on a ______________ of the Milky Way.

Tags

NGSS.MS-ESS1-2

A __________ is a collection of billions of stars. There are 3 types of galaxies: spiral, elliptical and irregular.

Our solar system is a part of the _____________________.

Tags

NGSS.MS-ESS1-2

Astronomical Unit (AU)

• distance from Earth to Sun-used to measure distances within our solar system (ex. distance between Mars and Jupiter)

• distance light travels in one year-used to measure distances outside our solar system (ex. measuring distances between stars/galaxies)

• Theory of early astronomers. Earth is at the center of the universe. The sun and planets would revolve around the Earth.

• Sun is at the center of the solar system.

Tags

NGSS.MS-ESS1-3

Light Year

• distance from Earth to Sun-used to measure distances within our solar system (ex. distance between Mars and Jupiter)

• distance light travels in one year-used to measure distances outside our solar system (ex. measuring distances between stars/galaxies)

• Theory of early astronomers. Earth is at the center of the universe. The sun and planets would revolve around the Earth.

• Sun is at the center of the solar system.

Tags

NGSS.MS-ESS1-3

Geocentric Model

• distance from Earth to Sun-used to measure distances within our solar system (ex. distance between Mars and Jupiter)

• distance light travels in one year-used to measure distances outside our solar system (ex. measuring distances between stars/galaxies)

• Theory of early astronomers. Earth is at the center of the universe. The sun and planets would revolve around the Earth.

• Sun is at the center of the solar system.

Heliocentric Model

• distance from Earth to Sun-used to measure distances within our solar system (ex. distance between Mars and Jupiter)

• distance light travels in one year-used to measure distances outside our solar system (ex. measuring distances between stars/galaxies)

• Theory of early astronomers. Earth is at the center of the universe. The sun and planets would revolve around the Earth.

• Sun is at the center of the solar system.

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-3

Terrestrial/Inner Planets: ______, _________, ________, _______ more dense, smaller in size, rocky composition

• Mercury

• Venus

• Earth

• Mars

• Jupiter

Tags

NGSS.MS-ESS1-3

Jovian/Gas Giants/Outer Planets: _______, ________, _______, _______ Less dense, larger in size, composed of gases

• Jupiter

• Saturn

• Uranus

• Neptune

• Earth

_______________ (wavelength increases – long wavelength)

Objects move away from the observer.

Tags

NGSS.HS-ESS1-2

NGSS.HS-PS4-1