Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

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.

By signing up, I agree to StudyStack's Terms of Service and Privacy Policy.

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.

Remove ads
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards

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

1st examen an Noel

1st year Xmas Exam

States of Matter solid, liquid and gas.
Solids have a definite shape and a definite volume.
Liquids don't have a definte shape but have a definte volume.
Gases don't have a definite volume but have a definite mass.
Solid to Liquid melting
Liquid to Solid freezing
Gas to Liquid condensation
Liquid to Gas evaporation
tissue group of specialised cells with a common structure and function.
organ collection of tissues joined in structural unit to serve a common function
biological system a group of organs that work together to perform a certain task
cell structural and functional unit of all known living organisms
unique to plant cells LARGE vacuole, chloroplasts, cell wall
chlorophyll molecule, which allows plants to obtain energy from light.
habitat specific place or natural conditions in which a plant or animal lives
invertibrate animal without vertebrae (backbone)
biological identification key printed or computer-aided device that aids the identification of biological entities, such as plants, animals, fossils, microorganisms and pollen gains.
characteristics of living things (organisms) movement, respiration, Growth, Reproduction, Irritability
cellular respiration the metabolic process by which an organism obtains energy by reacting oxygen with glucose to give water, carbon dioxide and ATP (energy)
physiologic respiration the transport of oxygen from the outside air to the cells within tissues, and the transport of carbon dioxide in the opposite direction
meniscus curved surface of liquids in tubes, whether concave or convex, caused by the surface tension of the liquid
density of a material mass per unit volume of the material
density of water 1 gram per cm3
Created by: sciencespook