The rate of change in velocity, usually expressed in meters per second; involves an increase or decrease in speed and/or a change in direction.
What is Acceleration?
100
The smallest unit of a chemical element that can still retain
the properties of that element
What is Atom?
100
Unit of energy; the amount of heat needed to raise one gram
of water one degree Celsius at standard atmospheric
pressure
What is Calorie?
100
Factor being measured or observed in an experiment.
What is Dependent Variable?
100
A physical change that occurs when matter changes to another state.
What is Change of State?
200
Force of air on moving objects.
What is Air resistance?
200
A stable elementary particle that is negatively charged and
orbits the nucleus of an atom.
What is Electron?
200
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.
What is Condensation?
200
Not consistent or having a fixed pattern; liable to change
What is Variable?
200
A reaction or a change in a substance produced by chemical means that results in producing a different chemical.
What is Chemical Change?
300
In any periodic function (e.g., a wave) the maximum
absolute variation of the function.
What is Amplitude?
300
A substance that cannot be reduced to a simpler substance
by chemical means.
What is Element?
300
A fundamental principle stating energy cannot be created
nor destroyed but only changed from one form to another.
What is Conservation of energy?
300
A set of connected things or parts forming a complex whole, in particular.
What is System?
300
An interconnection of electrical elements forming a complete path for the flow of current.
What is Circuit?
400
The peak or highest point on a wave
What is Crest
400
A stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign.
What is Proton?
400
Heat transfer in a gas or liquid by the circulation of currents
from one region to another
What is Convection?
400
A variable whose variation does not depend on that of another.
What is Independant Variable?
400
A thing that is composed of two or more separate elements; a mixture.
What is Compound?
500
The change in direction of a wave caused by passing by an
obstacle or traveling through an opening.
What is Diffraction?
500
A subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen.
What is Neutron?
500
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.
What is Electromagnetic Radiation?
500
A scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.
What is Experiment?
500
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.