An energy source that cannot be replaced in a relatively short time (including fossil fuels, oils, coal...)

A carbon-containing fuel formed over millions of years from the remains of living things

the variable that is manipulated or changed in an experiment

A well-tested explanation of observations and experimental findings

The variable that changes in response due to the conditions set in the experiment

A study in which only one factor is manipulated or changes

All the living and nonliving things with which an organism interacts

A social Movement dedicated to protect the natural world- and by extention people- from harmful changes produced by human activites.

any of the natural and energy sources provided by nature that humans need to survive

A statement of what a scientist expects to observe if a hypothesis is true

A testable idea that attempts to explain a phenomomen or answer scientific question

The environment impact of an individual or population in terms of the total amount od land and water required.

Able to meet the curret demand for resource without depleting the future supply

An energy source that is readily available or can be replaced in a relatively short time

The study of how the Natural world works ,how the environment affects humans and humans affect it

he formal process of sumitting research for examination by the scientific community

The branch of philosophy that involves thestudy of good and bad and right and wrong

Information collected using the scientific method