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MSA vocab part 10

Orbit. A path of one body in its revolution about another body.
Organ. A structure made up of different types of issues that work together to do a specific job.
Organism. A living thing.
Parallel circuit. Electrical circuit arranged so that currents pass through one pass way simultaneously.
Parasite. A symbiotic relationship between two organisms in which one (the parasite) benefits to to the detriment of the other host.
Pathogen. An agent (usually a microorganism) that causes disease.
Pattern. Repeated sequence of natural occurrences. A configuration of shapes or other objects arranged in such a way as to demonstrate a specific repeat in design.
Periodic table. A chart where all the elements are organized into periods and groups according to their properties.
Petrified. Fossilized remains that have been turned into stone.
pH scale. Scale ranging from 0-14, used to describe how acidic (0) or basic (14) a substance is. The pH is the measure of hydrogen ion concentration in a solution.
Phases (lunar). Regularly occurring cycle of changes in the appearance of the moon.
Photosynthesis. The process by which green plants use water and carbon dioxide and light from the sun to make food.
Physical change. A change that occurs in the physical property/properties of a substance without altering its composition.
Physical properties. Any property of matter that can be observed by your senses.
Pitch. How high or low sound frequencies appear to be.
Planet. A major body (not a comet or asteroid) orbiting around a star.
Plate tectonics. Large crustal plates moving on the Earths surface and resulting in changes in the Earths surface.
Pollution. Human and natural contamination of the environment by chemicals or heat energy to the extent that existing habitats are threatened or populations of organisms are endangered.
Population. A group of organisms of the same species that live in the same area at the same time.
Potential energy. The stored energy of a body because of its position.
Created by: patapscos