The two elements that make up the sun
What is gravity?
When one plate descends below another
A net force acting on an object causes it to accelerate in the direction of the force
What is Newton's second law?
The boundary where the majority of volcanoes are located
Combining atoms to make heavier atoms
What is fusion?
Half of the major axis
The outermost layer of the Earth
What is the lithosphere?
The sum of forces on an object when unbalanced forces are applied to it
What is a net force?
The smallest volcano that forms by material being ejected straight up and piling up at the base
What is a cinder cone volcano?
A reason why the composition of the sun is significant
What is being similar to the galaxy / solar system / gas giants?
The movement of spectrum towards blue wavelengths caused by motion toward the observer
What is blue shifted?
A boundary where plates are moving apart from each other
What is a divergent boundary?
A sloping surface used to raise objects
What is an inclined plane?
Forms cliffs and waterfalls
What are fault scarps?
The outermost layer of the sun
What is the corona?
The two center points of an ellipse
What is foci?
The theory of plate tectonics
The fixed point of a lever
What is a fulcrum?
A crater at the top of a volcano when a side collapses
What is a caldera?
A violent eruption of particles and radiation from the surface of the sun
What is a solar flare?
Closest to the sun in orbit
Perihelion
A device that detects small changes in magnetic fields
What is a magnetometer?
The rate of change of position
What is speed?
Pile of debris at the base of a cliff
What is talus?