Earth Science Test Review March 2025

Front

What is eccentricity in terms of planetary orbits?

Back

The measure of how an orbit deviates from being circular.

Front

What is the shape of planetary orbits defined by two foci called?

Back

Ellipse.

Front

What are rocky planets called?

Back

Terrestrial planets.

Front

What is mass per volume called?

Back

Density.

Front

What does Kepler’s law state about planetary orbits?

Back

1st: orbits are elliptical; 2nd: equal areas swept in equal times; 3rd: period^2 is proportional to distance^3.

Front

What is the primary component of Earth's atmosphere?

Back

Nitrogen.

Front

What is the process by which plants convert sunlight into energy?

Back

Photosynthesis.

Front

What is the term for the movement of tectonic plates?

Back

Plate tectonics.

Front

What is the outer layer of the Earth called?

Back

Crust.

Front

What is the term for a large body of saltwater that covers most of the Earth's surface?

Back

Ocean.