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
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

brrrrrrrrrrrrrrrrrrr

sience

QuestionAnswer
3 types of natural light is .sun .moon .stars
3 types of artificial light .car lights .t.v. screen .lamp
transparent when all light goes through an object and an example is a piece of clear glass
opaqe when no light can travel through the object and an example is a wall or a door or a ceramic counter
translucent when only some light can pass through the object and an example is a piece of writing paper
2 reasons why light is important 1. because it lets us see 2. because without light plants will not grow and if plants do not grow than the animals and the people will have no fruits and vegetables neither will the animals and then the animals will die then the humans will die.
the two lenses and there definitions and their examples concave lenses are thin in the center and thick on the edjes an example is a camera a convex lenses is a thick lenses and an example is a magnifying glass
the spectrum of light and ROY G BIV the spectrum of light is a glass prism and when you shine white light on it it becomes the colours of the rainbow but this is formed because in white light there are the colours of the rainbow
indecent ray when the object is standing up right
reflected ray the ray that is bouncing off the mirror
refracted it occurs when light is bent
optic nerve it connects to the retina to the brain and carries the message of an object
pupils the dark dot in your eye that allows you to see
iris the coloured circle around the pupil
cornea is a see through covering in front of your eye
the retina the screen at the back of your eyeball
Created by: llooll
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