Geologic Processes (Earth Layers, Tectonics, and Rock Cycle)

Joel's science teacher asked each student ot create a model of Earth's tectonic plates. Joel decieded to use a hardboiled egg, like the one pictured. Part of the assignment was to describe one limitation and one benefit of the model. Which best identifies one limitation and one benefit?

• Limitation: does not have a liquid core, benefit: egg white represents the mantle

• limiation: plate movement cannot be replicated, benefit: cracks on shell represent tectonic plate boundaries

• limitation: to many cracks in the egg to be a tectonic plate, benefit: shape matches earth

• limitation: does not show the different layers of the earth, benefit: eggshell plate are able to move like Earth's plates

Tags

NGSS.MS-ETS1-4

California sits at the boarer between two major tectonic lates: the Pacific plate, which is moving northwest, and the North American plate, which is moving to the southeast. Each year southern California are has about 10,000 earthquakes. Which of the following best describes why earthquakes are a common occurrence in California?

• the two plates form a transform boundary because earthquakes are caused by plates sliding past each other

• the two plates form a divergent boundary because earthquakes are caused by the plates colliding 

• the two plates form a convergent boundary because earthquakes are caused by the plates puling away 

• the two plates form a subductive boundary because earthquakes are caused by pacific plate subduction under the north american plate

Tags

NGSS.MS-ESS3-2

Which of Earth's layers would be described as having the lowest denisty, thin and rocky?

• crust

• mantle

• inner core

• outer core

Which of Earth's layers would be described as having the highest denisty, solid and very hot?

• crust

• mantle

• inner core

• outer core

Which of Earth's layers would be described as being the only truly liquid layer?

• crust

• mantle

• inner core

• outer core

Which of Earth's layers would be described as plastically that can flow, and has convection?

• crust

• mantle

• inner core

• outer core

Which of the following best describes the outer core?

• the outer core is the middle layer of Earth, and contains the most heat

• the outer core is a dense, soild layer, and is responsible for the motion of Earth's plates

• the outer core is the outermost layer of Earth, and varies in temperature and thickness

• the outer core is a liquid layer that rotates around the inner core, and is responsible for the earth's magnetic field

Which option best describes how volcanoes are formed on Earth?

• hot water just under the crust must convect slowly moving as heat circulates from the mantle to the bottom of the crust, until pressure increases and it erupts

• hot magma in the mantle must convect, slowly moving as heat circulates from the core to the surface, and pulling or pushing the tectonic plates

• weather and erosion carve out out an opening as the tops of mountains which allows magma in the ground to rise and cause eruptions

• divergent plates cause moiuntains to seperate leaving room for magma to enter and erupt

Tags

NGSS.MS-ESS2-1

Trevor is working on completing his science journal notes on Earth's layers. Which statement should Tervor use to best describe the Earth's inner core?

• it is a dense solid, under pressure with the higest temperatures

• it is thin and loose, composed of rocks and soil under the least amount of pressure

• it is made up of very hot rock that flows under pressure creating very slow-moving currents

• it is a shell of liquid iron with very high temperature and pressure and creates earth's magnetic field

Rafael is working on completing his science journal notes on Earth's layers. Which statement should Rafael use to best describe the Earth's outer core?

• it is a dense solid, under pressure with the higest temperatures

• it is thin and loose, composed of rocks and soil under the least amount of pressure

• it is made up of very hot rock that flows under pressure creating very slow-moving currents

• it is a shell of liquid iron with very high temperature and pressure and creates earth's magnetic field