Earth and Space Science 1st Semester Exam Review

A group of stars, dust, and gases held together by gravity.

The brightness of a star when viewed from Earth

Which of the Earth’s spheres includes oceans, groundwater, lakes, and glaciers?

During the lifespan of a star, what percentage of time is spent in the main sequence stage

What are rocky and metallic materials held together by gases?

A Doppler Shift because light is being stretched as the rest of the universe expands.

The largest of the terrestrial planets

Who is considered the “father of modern science?”

What is the tilt of Earth’s axis?

What is a protostar?

Which of the following is NOT a factor that affects the apparent brightness of a star as seen from Earth?

What are the three main parts of the geosphere?

The speed of light

The visible surface of the sun

Small, solid particles that reaches Earth’s surface from space

Approximately how long is a light-year?

A cloud of gas and/or dust in space

Which of the following is NOT one of the main areas of Earth Science?

Which of the following is not present on the moon?

What is the Earth’s motion in its path around the sun called?

An Astronomical Unit is

Which of the following will be the final stage in the sun's life cycle?

Galaxies are retreating at a speed proportional to their distance

The spinning of the Earth on its axis