part 1 vocab
Terms
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- absolute zero
- the temp. at which all molecular motion stops .
- density
- the mass per unit squerd
- contract
- squeeze or press together
- alternate energy source
- wind, solar, waves, biomass, geothermal
- ecosystem
- everything in a enviorment including dead things
- cytoplasm
- gooy stuff in a cell
- expand
- become larger in size
- cellular respiration
- process that releases energy by breaking down food
- class
- subdevison ofa a phylum consisting of several orders
- cell membraine
- coat around cell
- conduction
- transfer of energy particels through direct contact
- chemical property
- A characteristic that indicates a chemical change
- crystslline
- arrangment of particels in a geometric pattern
- decomposer
- eats and breaks don matter
- atomic number
- number of protons in a atom
- consumer
- organisms that take in food material and are above producers on the energy pyramid
- acceleration
- an increase in speed
- atomic mass
- The average mass of one atom of an element
- gas
- the state of matter
- convection
- the transfer of heat through a fluid (liquid or gas) caused by molecular motion
- circut
- a closed path through wich electrons can flow
- conversation
- transfer of energy through bulk movement
- fossil fuel
- fuel consisting of the remains of organisms
- friction
- the resistance encountered when one body is contacted with another
- force
- cause to move along the ground by pulling
- evaporation
- the process by which water changes from liquid form to gas
- asexual reporduction
- reperducting with only one parent
- compitition
- fight for food mates and other things
- egg cell
- girl repordoctive gland
- average speed
- a rate of motion determined by dividing the total distance traveled by the total travel time
- family
- A group of elements that have similar properties
- current
- the flow of electrons through a wire
- air ressistance
- friction like force that opposes motion of objects movin through the air
- chloroplast
- organell that contains chlorophyll, site of photosynthatzies in cells
- genus
- a general kind of something
- centripital force
- a force that causes an object to move into the middle
- condensation
- change of a liquid to a gas
- geo thermal energy
- energy coming from places in earth
- ancestor
- early type of organism from which others have evolved, early type of organism from which others have evolved
- enviorment
- refers to all of the surroundings and the conditions that affect living things, such as water, soil, and air.
- electroscope
- measuring instrument that detects electric charge
- community
- all the populations of diffrent organismes in a area
- amorphous
- Without shape.
- autotroph
- organizism that can make it's own food
- chemical change
- change that can not be made back to normal
- gravity
- the force that pulls objects toward earth
- diffusion
- the movment of molocueles from a high area to a low area
- electron
- an elementary particle with a negative charge
- element
- makes up most matter
- cell
- the basic unit of life
- boiling point
- The temperature at which a liquid is converted to a gas
- carnivore
- meat eating that gets its food from the meat
- chlorophyll
- a group of green pigments found in plants organisms