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PSSA Vocab Unit 11
Term | Definition |
---|---|
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. |