All about the sun
Gravity and Planetary Motion
Earth's History, Interior, Tectonic Motion
Force and Motion
Earth's Surface
100

The two elements that make up the sun

What is hydrogen and helium
100
The force of attraction between two objects with mass

What is gravity?

100

When one plate descends below another

What is subduction?
100

A net force acting on an object causes it to accelerate in the direction of the force

What is Newton's second law?

100

The boundary where the majority of volcanoes are located

What are convergent boundaries?
200

Combining atoms to make heavier atoms

What is fusion?

200

Half of the major axis

What is the semi major axis?
200

The outermost layer of the Earth

What is the lithosphere?

200

The sum of forces on an object when unbalanced forces are applied to it

What is a net force?

200

The smallest volcano that forms by material being ejected straight up and piling up at the base

What is a cinder cone volcano?

300

A reason why the composition of the sun is significant

What is being similar to the galaxy / solar system / gas giants?

300

The movement of spectrum towards blue wavelengths caused by motion toward the observer

What is blue shifted?

300

A boundary where plates are moving apart from each other

What is a divergent boundary?

300

A sloping surface used to raise objects

What is an inclined plane?

300

Forms cliffs and waterfalls

What are fault scarps?

400

The outermost layer of the sun

What is the corona?

400

The two center points of an ellipse

What is foci?

400

The theory of plate tectonics

What are slabs of the crust and mantle moving in different directions at different rates?
400

The fixed point of a lever

What is a fulcrum?

400

A crater at the top of a volcano when a side collapses

What is a caldera?

500

A violent eruption of particles and radiation from the surface of the sun

What is a solar flare?

500

Closest to the sun in orbit

Perihelion

500

A device that detects small changes in magnetic fields

What is a magnetometer?

500

The rate of change of position

What is speed?

500

Pile of debris at the base of a cliff

What is talus?

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