UNIT: EARTH AND SPACE SCIENCE

Front

What is the approximate diameter of the Sun compared to Earth and the Milky Way?

Back

The Sun's diameter is approximately 1.4 million kilometers, which is much larger than Earth's diameter of about 12,742 kilometers.

Front

In a model of the universe, what does a shoebox represent?

Back

The shoebox represents the universe.

Front

In a model of the universe, what does a bowl represent?

Back

The bowl represents a galaxy.

Front

In a model of the universe, what does a ball represent?

Back

The ball represents a star.

Front

Why are fossils of ocean animals found inland on North America?

Back

Ocean waters covered the land millions of years ago.

Front

What is sea floor spreading?

Back

Sea floor spreading is a process that occurs at divergent boundaries where tectonic plates move apart, creating new oceanic crust.

Front

What is a divergent boundary?

Back

A divergent boundary is where two tectonic plates move away from each other, often resulting in sea floor spreading.

Front

What is a solar flare?

Back

A solar flare is a sudden eruption of energy on the surface of the Sun, often associated with sunspots.

Front

What is a solar prominence?

Back

A solar prominence is a large, bright feature extending outward from the Sun's surface, often in a loop shape.

Front

What evidence supports the theory of plate tectonics?

Back

Fossil distribution, geological formations, and the fit of continental coastlines support the theory of plate tectonics.