Earth Science Final Exam Review

Front

What is the process of energy formation in the sun?

Back

Energy is formed through nuclear fusion in the sun's core, where hydrogen atoms combine to form helium, releasing energy in the process.

Front

What happens to energy after it is produced in the sun's core?

Back

Energy is released to the photosphere, where it can escape into space.

Front

What is the radiative zone of the sun?

Back

The radiative zone is the layer of the sun where energy is transferred outward by radiation, taking a long time to pass through.

Front

What is the convection layer of the sun?

Back

The convection layer is where hot plasma rises, cools, and then sinks back down, creating convection currents that help transport energy.

Front

What is solar wind?

Back

Solar wind is a stream of charged particles released from the upper atmosphere of the sun, consisting mainly of electrons and protons.

Front

What is a supernova?

Back

A supernova is a powerful and luminous explosion of a star, marking the end of its life cycle, often resulting in the formation of heavy elements.

Front

How are elements heavier than iron formed in the universe?

Back

Elements heavier than iron are formed during supernova explosions, where the intense heat allows for nuclear fusion of lighter elements.

Front

What is cosmic background radiation?

Back

Cosmic background radiation is the afterglow radiation from the Big Bang, detected as microwave radiation filling the universe.

Front

What evidence supports the Big Bang Theory?

Back

Evidence includes cosmic background radiation, the abundance of light elements, and the redshift of distant galaxies.

Front

What is the significance of the redshift in astronomy?

Back

Redshift indicates that an object is moving away from the observer, providing evidence for the expansion of the universe.