Earth's Formation and Early History

Which of these provides the BEST evidence that the distribution of Earth’s oceans has changed over time?

• hot spots on ocean floors

• seismic activity along plate boundaries

• sediment buildup on continental slope

• marine fossils found on land masses

Tags

NGSS.HS-ESS1-5

Which environmental condition MOST likely existed at the time a fossil formed?

• Organism remains were deposited in an area of open space

• Organism remains were covered by lava flow.

• Organism remains were buried with little oxygen.

• Organism remains were buried in an area where a lot of erosion occurred.

Tags

NGSS.HS-LS4-5

Why are meteorites important to evidence when estimating the age of Earth?

• Meteorites are most likely debris ejected from the sun and moon.

• Meteorites come from bodies in space that formed along with the planets and are thought to have similar compositions to Earth's layers.

• Meteorites formed far outside the solar system at the same time Earth formed.

Tags

NGSS.HS-ESS1-6

What is the FIRST event in the formation of the solar system?

• About 4.5 billion years ago pieces of rock and ice accumulate more material until they grow into planets and moons.

• About 4.6 billion years ago, a cloud of stellar dust or nebula exists within the Milky Way.

• None of the above.

What force acted on the massive nebula to collapse it and eventually form our sun?

• electrostatic force

• strong force

•  weak force

• gravity

Tags

NGSS.HS-PS2-4

when dust and gas gravitate together and form ever larger bodies

• absolution

• attrition

• accretion

• erosion

The protoplanets kept:

• Colliding and breaking apart

• Colliding and sticking together

• Colliding and bouncing around

• Breaking down into smaller pieces

What is the primary source of heat that contributed to the early formation of Earth?

• Radioactive decay

• Solar radiation

• Volcanic activity

• Tidal forces

Tags

NGSS.HS-ESS1-6

Which of the following processes is responsible for the differentiation of Earth's layers?

• Convection currents

• Plate tectonics

• Gravitational settling

• Erosion

Tags

NGSS.HS-ESS2-3

What evidence supports the theory that Earth was once entirely molten?

• Presence of sedimentary rocks

• Existence of the magnetic field

• Uniform distribution of minerals

• Layered structure of Earth

Tags

NGSS.HS-ESS1-6