Unit 2: Formation of Solar System & Earth Review

What is the Earth centered model of the universe called?

• Geocentric

• Geologic

• Heliocentric

• Nebular Hypothesis

• Big Bang

What is the Sun centered model of the universe called?

• Geocentric

• Solar Nebula

• Heliocentric

• Nebular Hypothesis

• Big Bang

Tags

NGSS.HS-ESS1-4

What is a growth or increase in size by gradual addition of material called?

• Accretion

• Decretion

• Incretion

• Differentiation

• Composition

What is a stream of high-speed charged particles that flow outward from the Sun?

• Solar Wind

• Solar Nebula

• Heliopause

• Magnetosphere

• Epicycle

Tags

NGSS.HS-PS4-3

What is a small circular path that a planet was once thought to follow while moving along its orbit around Earth?

• Epicycle

• Elliptical Orbit

• Retrograde Motion

• Epicenter

• Protoplanetary Disk

What is the idea that the solar system formed from a large cloud of gas and dust in space that slowly spun, flattened, and clumped together to create the Sun and planets?

• Stellar Accretion Hypothesis

• Big Bang Theory

• Nebular Hypothesis

• Protoplanetary Disk Hypothesis

• Late Heavy Bombardment

Tags

NGSS.HS-ESS1-6

Earth's first atmosphere was short lived and was primarily composed of ​which TWO gases that escaped into space due to Earth's weak gravity?

• hydrogen
• oxygen

• nitrogen

• helium

• carbon dioxide

Check ALL of the reasons why the early Earth was extremely hot and mostly molten from the following options:

• Compression and pressure creates heat due to gravity.

• The Sun was much hotter than it is now.

• Heat generated from the decay of radioactive elements.

• Earth's first atmosphere captured and retained a lot of heat from the Sun.

• Continuous impacts and accretion from leftover debris around Earth.

Tags

NGSS.HS-ESS1-6

Match the terms:

• Planet

• A completely spherical body which has cleared its orbit of debris as it revolves around its star.

• Protoplanet

• A large bodies of matter, mostly spherical in shape, which may develop into a planet.

• Planetesimals

•  A small body from which planets originate during the early formation of the solar system.

Tags

NGSS.MS-ESS1-3

​ (a)   draws gas and dust toward the center of a protoplanetary disk to form a star and causes particles to ​ (b)   into larger bodies.

• Gravity
• Solar wind
• clump together
• spread apart

Tags

NGSS.MS-ESS1-2