What is ate of change in velocity, usually expressed in meters per second; involves an increase or decrease in speed and/or a change in direction
100
atom
What is the smallest unit of a chemical element that can still retain the properties of that element
100
calorie
What is unit of energy; the amount of heat needed to raise one gram of water one degree Celsius at standard atmospheric pressure
100
change of state
What is a physical change that occurs when matter changes to another state (i.e., liquid, gas, or solid)
100
dependent variable
What is factor being measured or observed in an experiment
200
air resistance
What is force of air on moving objects
200
electron
What is a stable elementary particle that is negatively charged and orbits the nucleus of an atom
200
condensation
What is the process of changing from a gas (i.e., water vapor) to a liquid (i.e., dew); the act of making more dense or compact
200
chemical change
What is a reaction or a change in a substance produced by chemical means that results in producing a different chemical
200
independent variable
What is the factor that is changed in an experiment in order to study changes in the dependent variable
300
amplitude
What is in any periodic function (e.g., a wave) the maximum absolute variation of the function
300
element
What is a substance that cannot be reduced to a simpler substance by chemical means
300
conduction
What is the transmission of heat through a medium and without the motion of the medium
300
circuit
What is an interconnection of electrical elements forming a complete path for the flow of current
300
experiment
What is a procedure that is carried out and repeated under controlled conditions in order to discover, demonstrate, or test a hypothesis; includes all components of the scientific method
400
crest
What is the peak or highest point on a wave
400
neutral
What is a particle, object, or system that lacks a net charge
400
the transmission of heat through a medium and without the motion of the medium
What is a fundamental principle stating energy cannot be created nor destroyed but only changed from one form to another
400
compound
What is a substance made up of a combination of two or more elements held together by chemical bonds that cannot be separated by physical means
400
investigation
What is a procedure that is carried out in order to observe a response caused by a stimulus; not a complete experiment
500
diffraction
What is What is the change in direction of a wave caused by passing by an obstacle or traveling through an opening
500
neutron
What is a subatomic particle having zero charge, found in the nucleus of an atom
500
electromagnetic radiation
What is the emission and propagation of the entire range of the electromagnetic spectrum including: gamma rays, x-rays,ultraviolet radiation, visible light, microwaves, and radio waves
500
density
What is concentration of matter of an object; number of individuals in the same species that live in a given area; the mass per unit volume of a substance in a given area
500
scientific method
What is a plan of inquiry that uses science process skills as a tool to gather, organize, analyze, and communicate information