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Physical Science

Physical Science The study of matter and energy
Matter Anything that has mass and takes up space
Mass The amount of material an object has
Chemistry The study of matter and how it changes
Physics The study of how energy acts with matter
Unit A known amount used for measuring
Customary Ordinary or regular
Metric System System of measurements used by scientists
Meter The basic unit of length in the metric system, it is about 39 inches
Centimeters 1/100 of a meter
Milimeter 1/1000 of a meter
Meter Stick Common tool for measuring length in the metric system
Kilometer A metric unit of measure that is equal to 1,000 meters
Area The amount of surface an object has
Exponent A number that tells you how many times a number is a factor
Gram Basic unit in the metric system that starts with the letter G
Kilogram A unit that equals 1,000 grams
Milligram A unit that measures 1/1,000 of a gram
Centigram A unit that measures 1/100 of a gram
Cubic Centimeter A metric unit that means cm*cm*cm
Property Characteristics that help identify an object
Atom The building block of matter
Molecule The smallest part of a substance that keeps the chacteristics of that substance
solid A form of matter that has a definite shape and volume
liquid A form of matter that has a definite volume but no definite shape
gas A form of matter that has no definite shape or volume
states of matter The form that matter has - solid, liquid, or gas
plasma A very hot gas made of particles that have an electric charge
Element matter that has only one kind of atom
Compound A substance that is formed when two or more elements join together
Neutron A tiny particle in the nucleus of an atom that is similar to a proton in size
Electrons A tiny particle of an atom that moves around the nucleus
Protons A tiny particle in the nucleus of an atom
Nucleus The central part of an atom
Symbol One or two letters used to represent an element's name.
Tritium An isotope of hydrogen that has one proton and 2 neutrons
Familiy A group of elements arranged with similar properties and in the same colum
Periodic Table An arrangements of elements by atomic number.
Isotope An element that has a different number of neutrons than protons and electrons.
Deuterium An isotope of hydrogen that has one proton and one neutron.
Metal type of element; usually solid at room temperature, shiny and good conductor
Nonmetals type of element with properties unlike metals
Nobel Gases type of elements made up of gases that do not combine with other materials
alloys a mixture of 2 or more metals
Inert lacking the power to move
Chemical Formula tells the kind of atom and how many of each kind are in a compound
Subscript a number in the formula that tells how many parts are in the compound
Radicals a group of 2 or more atoms that act like 1 atom
Energy Level one of the spaces around the nucleus in which electrons move
Binary compound a compound made of 2 elements
Acid A compound that reacts with metals to produce hydrogen
Base A compound that contains the OH radical
pH A number that tells if an item is a base or acid
Motion A change in postion
Distance The length of the path between two points
Speed The rate at which the position of an object changes
Constant Speed Speed that does not change
Created by: Amic