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80 Cards in this Set
- Front
- Back
abiotic
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things in an ecosystem that are non-living
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absorb
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to soak up, like a sponge
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adaptation
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a characteristic that helps an organism survive in its enviorment
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air pressure
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the weight orf all the air particals in a region
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amphibian
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a cold blooded vertebrate that lays eggs, has three stages of life, and can live on land or in water
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angiosperm
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a plant in which the ovary of the flower forms fruit around the seeds
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atmosphere
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the layer of gases surrounding the Earth that helps support life
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atom
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an extreamly small particle which is the basic building block of matter
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axis
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the imaginary line that goes through the Earth's center and connects the North and South Poles;the Earth rotates on its axis
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bar graph
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a picture used to compare data that can be put into seperate groups
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behavior
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any reastion of an animal to internal or external changes
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biotic
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things in an ecosstem that are living
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bird
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a warm blooded feathered animal
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boiling point
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the termperature at which a liquid canges to a gas by adding heat energy
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carbon dioxide
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a gas found in the air that plants use to make food
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carnivore
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an animal that eats only meat
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cell
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the smallest struture in a living thing; the basic unit of life.
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cell membrance
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structure that surrounds a cell and controls what comes in and out of the cell
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chamical change
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a change in matter that forms a new substrance with different properties from the orginal substance
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chemical energy
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the energy that objects have becasue of the way their atms are bonded together
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chlorophyll
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a chemical in plnt leaves that absorbs energy fromt he Sun
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chloroplast
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tiny structures in plant cells where the plant converts the Sun's energy into chemical engery
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circle graph
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a diagram that shows how much of a whle a certain part represents; aslo called a pie chart
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circulartory system
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the organ system that uese blood to carry food, water, and oxygen to parts of the body
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clay
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very fine grains of mineral; individual particles are invisible to the naked eye
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cold-blooded
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unable to produce heat to maintain a constant body temperature
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community
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all of the differnt species that live in the same area
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compete
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when two living things or groups of living things try to get the same type of food, water, or shelter
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conclusion
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a decision based on investigation and evidence
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condensation
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the process of a gas becoming a liquid when the gas is cooled
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condense
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to change from a gaseous state to a liquid state
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conduction
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the transwer of thermal energy throu direct touching
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conservation
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the protection and preservation of natural resources
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consumer
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a living thing that gets it energyby eating other living things
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cost-benefit analysis
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tools for measuring how a new technology will affect people and the enviorment
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crescent
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the moon when it is between half-visable and not visable
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cytoplasm
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the clear thick fluid that holds the parts of a cell
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data
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information that describes things, events, or porcesses
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decomposers
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a living organism that breaks down dead organisms into smaller parts that can be reused by other living organisms
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delta
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a fan-shaped landmass at the mouth of a rive made from built-up sediment
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density
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the amound of mass in a given volume
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deposition
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a process in which sediment lands somewhere and settles
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digestive system
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the body system that breaks down food particles into engery that the body can use
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dune
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a hill of sand created by the wind
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earthquake
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a shaking of the Earlth's crust caused by a sudden plate movement
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ecosystem
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a system of living things and the enviroment in which they exist
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efficient
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turing most of one type of energy into another type
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electricity
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the energy of moving changes in atoms
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engery
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what makes something move or change
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energy pyramid
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a diagram that shows how energy is passed through the links in the food chain
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engery transformation
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a change of engery into a different form, such as light energy changing to heat energy
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engineer
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a person whi identifies a problem in people's lives and designs a solution to a problem
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erosion
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the process in which small particles of soil and rock are carried away by glaciers, water, and wind
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evaporation
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the process of changing from a liquid to a gas
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experiment
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a carefully planned activity done to help answer a question, test an idea, or support an opinion
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fair test
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a way to explore how jist one varibale might or might not affect a second varibale; sometimes just called an experiment
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fertilizaton
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the process in which the egg and sperm cells of parent organisms unite in sexual reproduction
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fish
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a cold-blooded, aquatic, scaly animal
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food chain
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a diagram that shows how food energy moves among organisms
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food web
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a network of food chains that represents the balance in an ecosystem
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force
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a push or pull that causes something to change its speed or direction
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fossil fuel
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an engery source formed from the remains of once-living organisms;coal, oil, and natrual gas
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freeze
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to change from liquid state to a solid state
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friction
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a contact force that slows the motion of moving objects
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fulcrum
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a point or support around which a lever rotates
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galaxy
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a system of millions of stats held together by gravity, our solar system is located in the Milky Way galaxy
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gibbous
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the moon when more thatn half of it is visable but is not yet a full mon
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glacier
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a gigantic formation of ice that does not met over the course of a year
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gravity
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a noncontact force that pulls two objects toward eachover;gravity pulls all objects towards the center of the Earth
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gymnosperm
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a plant with no fruit
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habitat
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the environment that an organism requires to live
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heat energy
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engery that involves the movement of all particiles; temperature is a measure of heat energy
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herbivore
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an animal tht eats only plants
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heredity
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the passing on of traits from parents to young
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high-pressure system
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a wether pattern in which ari sinks to the Earth, warms up, and absorbs water vapor, often casuing sunny skies
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humus
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decomosed materail form living things that is a component of soil
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hypotheise
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a resaonable guess or possble explaination that can be tested through observation or experiment
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inertia
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the tendecy of an object to keep doing what it is doing ( moving or staying aat rest)
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inherited trait
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a characteristic passed form a parent to offstrong through reporduction
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instinct
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behavior that animals are born with
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