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.
We do not share your email address with others. It is only used to allow you to reset your password. For details read 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.
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

Ultimate study stack

cell The basic structure and function in all living things
organism A living thing
nucleus The organelle that directs all of a cell's activities
cell membrane The organelle that protects the cell, holds it together, and controls what goes into or out of the cell
cell wall The part that protects the cell and holds it together
cytoplasm A jelly like substance that contains chemicals that keep the cell healthy
chloroplast It makes food for the plant
multi-cell organism An organism with more than one cell
single-celled organism An organism with one cell
microorganism An organism that is to small to see with the naked eye
chromosome They hold information about the cell characteristics
inherited trait A characteristic passed from parents to their offspring
dominant trait A trait that appears even if an organism only has one factor for that trait
recessive trait A trait that appears only if an organism has two factors for that trait
gene The part of a chromosome that contains the DNA code for an inherited trait.
instinct A behavior that an organism inherit
learned behavior A behavior that an animal acquires through experience
classification The process of grouping similar things together
kingdom A major, large group of similar organisms
species A unique kind of living organism
vertebrate An animal with a backbone
invertebrate An animal without a backbone
mammal Mammals have hair and produce milk for their young
bird All birds have feathers, but not all birds can fly. smoe birds fluff up thier feathers to help keep it warm
reptile Reptiles have scaly skin, and most lay their eggs on land
amphibian Amphibians begin life in water, but when they are adults, they live on land
fish Fish have scales and live their entire lives in water
electric charge A basic property of the tiny particles that make up matter and can be positive or negative
static electricity The buildup of electric charges in one place
electric current A flow of electric charges
electric circuit A continuous pathway that can carry an electric current
series circuit An electric circuit with only one path for current
parallel circuit An electric circuit with two or more paths for current
resistance How much a material opposes, or resists, the flow of electric current
short circuit A flaw in a circuit that allows a large current to flow through where it isn’t wanted
conductor A material through which heat and electricity flow easily
insulator A material that slows the flow of heat and electricity
electromagnet A magnet that has coils of current-carrying wire around an iron core
physical change A change in which a substance remains the same substance
mixture A combination of two or more different substances
physical property A trait—such as color, shape, or hardness—that describes a substance by itself
chemical property A property that involves the ability of a substance to react with other materials to form new substances
chemical change ] A change in which a substance or two becomes a new substance or two
compound A substance made of two or more different elements
law of conservation of mass The mass of the products of a chemical reaction equals the mass of the reactants
topography Surface landforms of an area
weathering The process of wearing away rocks by natural means
erosion The process of moving sediment by wind, moving water, or ice
delta An area of new land at the mouth of a river, formed from sediments carried by the river
sinkhole A large hole formed when the roof of a cave collapses
earthquake A shaking of Earth’s surface, caused by movement of rock in the crust
Created by: camporti4797