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AlexisScienceReview

Alexis Science Review

QuestionAnswer
Carbon _____________ through the carbon cycle. flows
What is a carnivore? Meat eating animal
What is a herbivore? plant eating animal
what is bacteria? smallest organisms on earth
What is nitrogen used for? Cycles of matter
What happens to the amount of energy when you move from the bottom of an energy pyramid to the top? It decreases
How population spacing classified? How the organisms are arranged in a given area
Give examples of fossil fuel: Coal, oil, and natural gas
Give examples of renewable resources: Sun, wind, water, and geothermic energy
Give examples of non-renewable resources: Coal, oil, and natural gas (fossil fuel)
What are some examples that produces electricity without polluting: Solar power
What is the energy source that causes the least amount of damage: Wind
What is the largest source of usable water? One percent (1%); groundwater under the earths surface
What is groundwater? Water found under the earths surface
What is surface water? Water found in rivers, lakes, oceans, and reservoirs.
Where do people usually build cities? Near large bodies of water
Forests absorb_____________ to prevent global warming. CO2 (Carbon Dioxide)
What is a soft, brown coal called? Lignite
What is a type of geothermic energy source? Geysers
What is fuel used in a nuclear power plant? Uranium
What is a drawback to using nuclear fuel? It produces the greatest amount of waste
What is splitting the nuclei of certain elements? fusion
What converts energy from the Sun into energy? Solar cells
Atoms are normally neutral electronically neutral because? The protons which have a positive charge (+) and the electrons have a negative charge (-) cancel each other out
When will objects attract one another? When they have an opposite charge
Give some examples of conductor? Metal, copper
When does an electrical field get stronger? When they get closer to the charge
Why is copper used in household wiring? It is a good conductor
When the resistance in a electrical circuit increases, the current flowing in the circuit will do what? Increases
What is the equation for power? Power = (Current) x (Voltage)
Resistance is measures in what? Ohm's
What is a circuit breaker used for? To limit the amount of current in the wire.
What unit does electrical companies sell energy? Kilowatts
Fossil fuel are the ancient decaying remains if ________ ? plants and animals
____________ is produced by splitting nuclei of certain elements. Nuclear energy
The introduction of harmful waste products, chemicals, and substances into the environment is called? Pollution
Pollution that comes from many different sources is called _____________ pollution. non-point source
What kind of power would a large dam generate? hydroelectric
____________ is heat energy from Earth Geothermic energy
What gases released by burning oil and coal mix with water in the air form, they form__________? Acid rain
A(n) __________ is a mineral resources found in large enough quality to be mined at a profit. Ore
Resources that cannot be replaced by natural processes in 100 years or less are called _______? nonrenewable
___________ is the energy from the Sun. Solar energy
What is the water called that soaks into the ground and collects in small spaces between bits of rock and soil? groundwater
Which is the following renewable energy resource cause the greatest waste hazard? nuclear
_____________ is the careful use of resources with the goal of reduces damage to the enviroment Conservation
How many years do scientist estimate we have left of our valuable reserves of oil? 30-40 years
Once oil and natural gas have been formed, they will begin to ________ through the sourounding rock and pore water. move upward
Accourding to your textbook, the best solution for air pollution is_____________? better air cleaning methods
Plants and animals that die today need ___________ years to become fossil fuels millions
Disadvantages to using solar energy include__________? dependence on weather
Disadvantages to using wind energy include__________? limited to certain regions
What is the difference between trees and forests as renewable or nonrenewable resources? Trees are renewable, but forests are not.
Why is land a renewable resource? It can be used over and over again
How much of earths total water supply is usable to humans? Only 1%
What is the study of interactions among organisms and their environments? ecology
This is the non living parts of the environment abiotic factor
living or once living organisms that live in the environment biotic factor
all the members of one species that live together popullation
groups of populations that interact with eachother in a given area community
made uo of biotic community and the abiotic factors that affect it ecosystem
the part of Earth that supports life biosphere
the number of individuals in a population that occupy a definite area popullation density
any biotic or abiotic factor that limits the numbers of individuals a popullation limited factor
any close interaction between two or more different species symbiosis
the role or job, of an organism in the ecosystem niche
a place where an organism lives habitat
is a model, a simple way of showing how energy, in the from of food, passes from one organism to another food chain
a series of overlapping food chains that exist in the ecosystem food web
involes the processes evaporation, condinsation, and precipitation water cycle
is an energy resource formed from the decayed remains of ancient plants and other organisms fossil fuel
harmful waste products chemicals,and substances found in the enviroment pollution
is producted when gases released, by burning oil and coal mix with, water, in the air to form acidic rain or snow acid rain
resources that cannot be replaced by natural processes in less than about 100 years nonrenewable
energy resources that can be recycled or replaced by natural processes in less than about 100 years renewable
energy from the sun that is nonpolluting solar energy
production of electricity using water hydroelectric power
the heat from the magma and hot rock that surrounds it geothermal energy
produced by splitting the nuclei of certain elements nuclear energy
water that soaks into the ground and collects in small spaces groundwater
some pollution comes from a single, identifiable source point source
a source of pollution that can't be traced back to an location nonpoint source pollution
teh careful use of resources with the goal of reducing damage to the enviroment conservation
mineral resource that canbe mined at a profit ore
a positively or negatively charged atoms ion
this imbalance of static charge on a object static charge
all charged objects that exert this on each other electric force
electric charges exert a force on each other at a distance electric field
a material in which electrons cannot move insulator
materials that are conductors contain electrons that can move more easily conductor
a rapid movement of excess charge from one place to another electric discharge
this source of electric energy comes from this, which is the flow of electric charge electric current
electric charges will flow continuosly only through a closed conducting loop circuit
of a batterie is a measure of how much electric potential energy each electron can gain voltage
the measure of how different it is for electrons to flow through a material resistance
a circuit that has only one path for electrons to follow series circuit
a circuit that has more than one path for the electric current to follow parallel ciruit
the rate at which an appliance converts electric energy to another form of energy electric power
Created by: marcrobertdillon on 2009-05-20



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