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PSSA Unit 11

Ecology PSSA Terms

TermDefinition
Radioactive Isotope An atom that gives off nuclear radiation and has the same number of protons (atomic number) as another atom but a different number of neutrons.
Carbon Chemistry The science of the composition, structure, properties and reactions of carbon based matter, especially of atomic and molecular systems; sometimes referred to as organic chemistry
Science Search for understanding the natural world using inquiry and experimentation.
Nova A variable star that suddenly increases in brightness to several times its normal magnitude and returns to its original appearance in a few weeks to several months or years.
Scale Relates concepts and ideas to one another by some measurement (e.g., quantitative, numeral, abstract, ideological); provides a measure of size and/or incremental change.
Theory of Evolution A theory that the various types of animals and plants have their origin in other preexisting types and that the distinguishable differences are due to modification in successive generations.
Created by: gmanwiller