Voltage

Energy can be defined as the ability to do work.  Electrons possess energy and this energy can be converted to another form to do work (make a lightbulb shine, motor run, etc).  This energy is called electric potential energy. Definitions: Electric potential energy:  energy that the battery gives to the electrons; the amount of energy…

Evolution: Genetic Drift, Gene Flow, Mutations, Random Change

Random change Key factors that can cause evolution: –Small populations are more variable to changes in allele frequencies -non-random mating opportunities result in only those “preferred” traits being passed onto future populations –new alleles may be created when mutations occur (changes the frequencies of new and original alleles) -migration causes changes in the relative abundance…

Energy Conservation

–          As the human population keeps increasing (it’s over 6 billion people right now), we keep requiring more and more energy. –          Using too much energy places stress on our energy production systems and may cause blackouts when we need the energy the most. HOW DO WE USE ELECTRICITY? –          In order to conserve (save)…

Physical and Chemical Properties

–          All pieces of matter have properties or characteristics.  All matter can be talked about with descriptive terms.  For example, describe the Johnson uniform: –          Scientists have grouped properties into two categories: physical properties and chemical properties. –          The properties you just described when talking about the Johnson uniform are what scientists call “physical properties.” …