Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Ch 13 Test Review

Stars and Galaxies

QuestionAnswer
The positions of the constellations appear to change throughout the year because of this. Earth revolves around the Sun
This makes Sirius the brightest star in the night sky. Apparent magnitude
The distances to nearby stars can be measured by using this. Parallax
About 90 percent of the stars in space are this type of star. Main sequence
This is what a main sequence star becomes after it uses up the hydrogen in its core. Giant
The Sun produces energy by fusing hydrogen atoms into _____atoms in its core. Helium
Our Sun is not______. A part of a binary system
This type of galaxy has a shape similar to a football. Elliptical
All of the following are true of the Milky Way except that it_______ Has more than 800 billion stars
This observation supports the Big Bang theory of the formation and expansion of the universe. Red shift
Although Rigel’s is greater than Serius’, Rigel does not look as bright in the night sky. Absolute magnitude
A region so dense that nothing, including light, can escape its gravity field. Black hole
These are dark, cooler areas on the Sun’s surface. Sunspots
What type of galaxies are the Clouds of Magellan that orbit the Milky Way? Irregular
What color are the coolest stars in the sky? Red
This is a group of stars, gas, and dust held together by gravity. Galaxy
These are patterns of stars in the sky. Constellations
This is the large cloud of gas and dust that a star begins as. Nebula
Prominences, flares, and sunspots are all caused by this. Intense magnetic fields
The number of years in the sunspot cycle. 11
Our Sun’s temperature and absolute magnitude place it in this range of the H-R diagram. Main sequence
The type of star system where two stars orbit each other. Binary
The color of the hottest stars in space. Blue
Huge arching columns of gas caused by the intense magnetic field associated with Sunspots. Prominences
Created by: rwaters
Popular Earth Science sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards