Busy. Please wait.
Log in with Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

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.
Didn't know it?
click below
Knew it?
click below
Don't know
Remaining cards (0)
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


3rd Grade Vocabulary

animals that begin life breathing with gills in water and later develop lungs amphibians
animals that have a backbone vertebrates
organism whose body temperature changes with the temperature of the air around it cold-blooded
characteristics an organism is born with inherited traits
what an organism must have in order to stay alive basic needs
features of a living thing characteristics
a change that makes an organism better able to survive adaptation
what surround an organism environment
the natural environment of an organism habitat
a community of different organisms and their environment ecosystem
land that has wet, spongy soil such as a swamp wetlands
land covered with trees and shrubs woodlands
an animal that hunts and eats other animals predator
an animal that is hunted by a predator prey
transfer for energy from one organism to another food chain
an organism that can make its own food producer
an organism that eats only plants herbivore
an organism that eats only animals carnivore
an organism that eats both plants and animals onmivore
any living thing organism
interrelated food chains in an ecosystem food web
cold-blooded vertebrates that are covered with scales reptiles
thin flat plates that cover reptiles scales
an area with very little rainfall desert
treeless, flat land covered with grasses prairie
organs in the respiratory system that transfer oxygen to the blood lungs
respiratory organs that remove dissolved oxygen from water gills
dies perish
lives and grows thrive
Created by: llvaugha
Popular Science sets




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:
restart all cards