Earth Science Semester 1 Final Review MMHS

When hydrogen nuclei fuse into helium nuclei:

Which gases were lost to the outer nebula because Earth's gravity was too weak?

Select the best description of a galaxy.

The sun contains about:

A large, bright star whose hot core has used most of its hydrogen is a:

The sun converts matter into energy in the

The distance that light travels in a year is called:

Scientific theories are often based on:

Almost all fossils are discovered in:

Earth scientists study

Hot materials from Earth's core move toward the surface in a process called:

What type of galaxy is the Milky Way?

An idea that has been tested repeatedly and gains acceptance is called a:

The solid plastic layer of the mantle is called the:

Astronomers believe that cosmic background radiation formed:

A protostar becomes a star when temperatures rise to ten million degrees celcius and:

The H-R diagram plots the surface temperature of a star against the star's:

Dark energy and dark matter:

Hydrogen fuses into helium generating energy during which phase of a star's life?

Small bodies from which planets originate during the early formation of the solar system.

Which is NOT part of the scientific method?

Hydrogen nuclei combine to produce a helium nucleus in the Sun's core during a process called:

Strong magnetic fields on regions of the sun lead to sunspots because:

How is radioactive decay used to determine the absolute age of rocks?

An irregular galaxy: 

A galaxy moving away from Earth has a spectrum that is:

Oceans became salty when

Scientists analyze the spectra of light that stars emit to determine the:

Organisms that formed index fossils:

Scientists use a spectrograph to break up star's light into a:

Two identical Index fossils found in two different rock samples indicate that the rocks :

Stars appear to move in the sky because:

A rotating cloud of gas and dust from which Earth's solar system formed is called a(n):

Magnetic fields in stars reduce (slow) energy transfer in the convective zone and cause:

Earth's shape most closely resembles a(n)

Anything that has mass and takes up space is known as:

Hubble's discovery that there is a red shift in the spectra of galaxies tells us that:

The iron- and magnesium-rich layer in Earth's interior is called the:

The coolest stars are:

A small, hot, extremely dense core left after a star collaspses is a:

Volcanic gases formed earth's first atmosphere through a process called

Blue stars are:

Kepler's 2nd law states that equal areas are covered in equal amounts of time as an object:

Young Earth formed a core, mantle, and crust in a process called:

Sunspots vary in a cycle that lasts about:

Einstein's equation, E=mc², describes or explains:

Venus and Earth:

Planetesimals are small bodies that joined together through collisions to form larger bodies:

Energy produced in the sun's core is the result of:

What is frequently seen in the sky after solar flares?

Why is radioactive decay used to determine the absolute age of rocks?

Hydrogen and helium makeup most of the:

Parallax is a technique used to determine a star's: