8th Grade Chapter 12 Test Review

Planetary nebulae are regions where planets are forming.

Which measurement? Trying to determine which of two stars are brighter from the same point.

What is a black hole?

Astronomers divide the night sky into 12 regions based on ancient constellations.

A sequence of star colors from hottest to coolest is ____.

Sunspots are cooler than the rest of the Sun's photosphere.

The spiral shape of the Milky Way Galaxy CANNOT be seen from Earth because ____.

about 100,000 light-years across

An astronomical unit is the average distance between Earth and the Sun

What is solar wind?

A measure of the amount of light received on Earth is a star's ____.

What is the cloud of recyclable materials at the end of a cloud's life cycle called?

Which measurement? Mary is describing the furthest distance between planets Jupiter and Venus.

A ____ is a region so dense that nothing, including light, can escape its gravity field.

Which best describes the location of our solar system?

A supernova is a very large star.

____ is the apparent shift in the position of an object when viewed from two locations.

The coolest stars in the sky are ___ in color.

A star begins to form when the densest part of a nebula collapses forming a protostar.

Which shows the evolution of some massive stars in the correct order?

Which is NOT true of the Milky Way?

A galaxy that has a shape similar to a football is what?

galaxy type without a definate shape

Its ___makes Sirius the brightest star in the night sky.

Two stars orbit each other in what type of star system?

The hottest stars in space are ____ in color.

A measure of the amount of light given off by a star is its ____.

Around 15-20 billion years ago, the universe began expanding after an explosion.

A region of strong magnetic activity on the photosphere on the Sun

_____ are patterns of stars in the sky.

Our solar system is located in the center of the Milky Way galaxy.

The distances to nearby stars can be measured by using what?

Which measurement? Total distance traveled by a spaceship in a sci-fi tv show.

A red shift in the spectrum of the light from an object indicates the object is moving ___ you.

Where do stars form?

Dark, cooler areas on the Sun's surface are called ____.

classification of most stars on the H-R diagram

A ____ is a huge collection of stars.

The most massive stars eventually become white dwarfs.

Which star is the coolest in temperature?

A star begins as a ____, a large cloud of gas and dust.

Which measurement? Picking the brightest star in the sky on a camping trip.

The photosphere is the solid surface of a star.

A group of stars, gas, and dust held together by gravity is a _____.

There are three types of galaxies: spiral, elliptical, and regular.