The third planet from the sun
What is Earth?
Large symmetrical cones, built by alternating layers of lava flows, volcanic ash, cinders, and bombs and can create explosive eruptions
What is a Composite Volcano?
A map that shows land features and elevation on a flat piece of paper
What is a Topographic Map?
Vibrations that travel through the air or other media
What is Sound?
These type of waves only travel through a medium
What are Mechanical Waves?
Oval-shaped, most abundant galaxy in the universe
What is an Elliptical Galaxy?
This type of volcano is quiet now, but might erupt again
What is a dormant volcano?
A line joining points of equal elevation on a surface
What is a contour line?
The ability of a material to bounce back after being disturbed
What is elasticity?
These type of waves can travel through empty space
What are electromagnetic waves?
The distance light travels in one year.
What is a Light Year?
Molten rock under the earth’s surface
What is magma?
The distance or difference in elevation between contour lines.
What is a contour interval?
The apparent change in frequency as a wave source moves in relation to the listener
What is the Doppler Effect?
Frequency is measured in these units
What are Hertz (Hz)?
A giant satellite that humans can live in for short times
What is the International Space Station?
The theory that Earth's outer crust (lithosphere) is divided into several plates that glide over the plastic-like and less ridged asthenosphere (upper mantle)
What is Plate Tectonics?
V-shaped contour lines indicate this geographic feature
What is a river valley?
the amount of energy the wave carries per second through a unit of area
What is Intensity?
This formula is used to calculate Wavelength
What is Wavelength = Velocity OR Speed/Frequency?
This object's force keeps the planets in our solar system in their orbits
What is the Sun's Gravity?
An active volcanic region
What is a Ring of Fire?
Appear as a series of irregularly shaped, successively smaller concentric circles or ovals
What are hills or mountains?
Sound waves carry energy through a medium (solid, liquid or gas) without the particles of the medium traveling along. Sound travels as this type of wave.
What is a longitudinal wave?
The vertical distance between a peak or a valley and the resting position in a transverse wave or a measure of how compressed or rarefied the medium becomes in a longitudinal wave.
What is Amplitude?