Earth's Layers

S waves

• Heat waves
• Light waves
• Seismic waves
• Sound waves

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

P Waves

• Seismic waves
• Light waves
• Sound waves
• Heat waves

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

What is the difference between a P-Wave and an S-Wave?

• P-Waves travel slower than S-Waves

• S-Waves are faster than P-Waves

• S-Waves travel through both solids and liquids
• P-Waves travel through solids and liquids, while S-Waves only travel through solids.

What do meteorites tell us about Earth's interior?

• Meteorites provide information about the atmosphere, not the interior
• Meteorites have no relation to Earth's interior
• Meteorites are only useful for studying the surface of the Earth
• Composition and structure of Earth's interior

Tags

NGSS.HS-ESS1-6

Mafic means

• Containing high levels of water and carbon dioxide
• Characterized by low density and high viscosity
• Composed mainly of silicon and oxygen
• Rich in magnesium and iron. It is an igneous rock.

Describe a felsic rock.

• A felsic rock is heavy and rich in calcium and potassium minerals.
• A felsic rock is transparent and rich in carbon and hydrogen minerals.
• A felsic rock is light-colored and rich in silica and aluminum minerals. Granite is felsic.

• A felsic rock is dark-colored and rich in iron and magnesium minerals.

What is the continental crust?

• The layer of molten lava beneath the Earth's surface
• The layer of ice covering the North and South Poles
• The layer of gas surrounding the Earth's atmosphere
• The layer of igneous, sedimentary, and metamorphic rocks that forms the continents and the areas of shallow seabed close to their shores.

What is oceanic crust?

• The outermost layer of Earth's ocean basins
• The core of the Earth
• The layer of ice covering the North Pole
• A type of cloud formation

Tags

NGSS.MS-ESS2-3

True of False. Oceanic crust is thinner and denser than continental crust.

• True

• False

What are the properties of the oceanic crust?

• Thicker, denser, and older
• Thinner, lighter, and older
• Thinner, denser, and younger
• Thicker, lighter, and older