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

Sekas Chapter 12

Chapter 12 Vocabulary

TermDefinition
solar system the Sun together with the group of celestial bodies that are held by its attraction and revolve around it
planet an object that orbits a star, is large enough to be nearly spherical in shape, and has no other large object in its orbital path
orbit the path an object follows as it moves around another object
ellipse a stretched out circle
gravity an attractive force that exists between all objects that have mass
momentum a measure of how hard it is to stop a moving object
inertia the tendency for objects in motion to resist changes to their direction and speed
geocentric model a model of the solar system with Earth at the center
heliocentric model a model of the solar system with the Sun at the center
astronomical unit the average distance from Earth to the Sun; about 150 million km
terrestrial planets the planets closest to the sun that are made of rock and metal and have solid outer layers
gas giant planets the planets farthest from the sun that have a thick gas and liquid layer covering a small, solid core
dwarf planet an object that orbits the Sun, has enough mass to form a sphere, and has objects similar in mass orbiting near it or crossing its orbital path
asteroid a small, rocky object that orbits the Sun
meteoroid a small, rocky particle that moves through space
meteor a meteoroid that has entered Earth's atmosphere, producing a streak of light
meteorite a meteoroid that strikes a planet or a moon
comet a small, rocky, icy object that orbits the Sun
Kuiper Belt a band of small celestial bodies beyond the orbit of Neptune
Oort Cloud a spherical shell of celestial bodies believed to surround the Sun far beyond the orbits of the outermost planets
Created by: brandi.sekas
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