CH8: Earth's Origin

What formed from a huge cloud of gases and particles pulled together by gravity?

• A star

• A planet

• A black hole

• A galaxy

Tags

NGSS.MS-ESS1-2

Fill in the blank: Earth remained a mass of liquid rock for ________ of years.

• millions

• thousands

• billions

• hundreds

Tags

NGSS.MS-ESS1-4

What are examples of dynamism in the dynamic geosphere?

• Volcanic eruptions and earthquakes

• Photosynthesis and respiration

• Evaporation and condensation

• Magnetism and electricity

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS3-2

Fill in the blank: Weathering, erosion, and deposition break down rock, move sediment, and form ________ rock.

• sedimentary

• igneous

• metamorphic

• volcanic

Geologists use relative dating to place rocks in chronological order by:

• using radiometric dating techniques.

• comparing the age of rock layers with fossils.

• analyzing the chemical composition of rocks.

• observing the position of rock layers.

Tags

NGSS.MS-ESS1-4

Fill in the blank: The geologic time scale is based on relative and absolute dating. The divisions are ________, ________, and ________.

• The divisions are eons, eras, and periods.

• The divisions are epochs, ages, and phases.

• The divisions are centuries, decades, and years.

• The divisions are cycles, stages, and intervals.

Tags

NGSS.MS-ESS1-4

Scientists hypothesize about early Earth that it was:

• a barren wasteland with no atmosphere

• a lush paradise with abundant life

• a molten mass with volcanic activity

• a frozen ice world

The theory of plate tectonics is:

• a scientific theory explaining the movement of the Earth's lithosphere.

• a theory about the formation of stars.

• a hypothesis about the extinction of dinosaurs.

• a concept related to the water cycle.

Tags

NGSS.MS-ESS2-3

Earth's thin, solid, outer skin is called the ____

• crust

• mantle

• core

• atmosphere

A mostly solid shell that stretches from the crust to a depth of 2900 kilometers is called the ____.

• mantle

• core

• crust

• lithosphere