Show:
Earth's Layers
Tectonic Plates
Rock Cycle
Volcanoes
Earthquakes
100
composed primarily of Silicon and oxygen, this is the outer most layer of the Earth
What is the crust
100
the Earth's crust is broken into these large sections.
What are tectonic plates?
100
These rocks are formed from other types of rocks through great amounts of heat and pressure.
What are metamorphic rocks?
100
Molten (melted) rock is called this while it remains below the surface of the Earth.
What is magma.
100
the type of energy that builds up as two moving tectonic plates get stuck against each other
What is elastic potential energy?
200
The core is in a constant state of radioactive decay producing a great deal of heat As heat rises through the mantle it creates this movement.
What are convection currents?
200
These three pieces of evidence help to support the Theory of Plate Tectonics.
What are corresponding fossils, land formations, and mineral deposits.
200
the breaking down of Earth's materials.
What is weathering?
200
sticky magma leads to explosive eruptions. This element makes the magma more sticky.
What is silicon?
200
These occur when elastic potential energy is transformed to kinetic energy along tectonic plates.
What are earthquakes?
300
The core is made of the Earth's ___________ elements.
What is densest?
300
These are the three types of plate boundaries and how they move in relation to each other.
What is convergent - towards divergent - apart transform - slide past
300
igneous rock containing larger crystals
What are intrusive igneous rocks?
300
these volcanoes are some of the largest in the world as lava can continue to slowly flow for decades
What are shield volcanoes?
300
If only very shallow (<20km deep) earthquakes occur, the area rests above this type of plate boundary.
What are divergent boundaries?
400
Scientists used these waves to help determine the inner layers of the Earth as they traveled through both liquids and solids.
What are p-waves?
400
When one plate slides under another at a convergent plate boundary
What is a subduction zone?
400
These are the building blocks of rocks. They are composed of two or more elements, occur naturally, and are non-living.
What are minerals
400
also known as a pyroclastic flow, this travelled across the waters of the Saundra Straight during the eruption of Krakatoa killing thousands of people
What is hot gas and ash from the volcano?
400
Scientists need at least 3 of these tools to determine the exact location of the epicenter of an earthquake.
What is a seismograph?
500
Primary elements in the core of the Earth.
What iron nickel
500
common land features seen at divergent plate boundary
What are rifts/ridges, shield volcanoes, very shallow earthquakes
500
these are sedimentary rocks formed through evaporation or precipitation
What are non-clastic sedimentary rocks
500
magma is hotter than the surrounding rock and is therefore less dense. Material that is less dense will do this.
What is rise.
500
the deepest earthquakes occur along these type of plate boundaries
What are convergent boundaries