the smallest unit of a chemical element that can still retain
the properties of that element
What is atom?
100
a form of energy resulting from the temperature difference
between a system and its surroundings
What is heat?
100
the pivot point of a lever
What is fulcrum?
100
the event, condition, or factor that can be changed or
controlled in order to study or test a hypothesis in a
scientific experiment
What is variable?
200
the number of cycles or waves per unit time
What is frequency?
200
a stable elementary particle that is negatively charged and
orbits the nucleus of an atom
What is electron?
200
the energy possessed by a body because of its motion
What is kinetic energy?
200
one of the fundamental states of matter in which molecules
do not have fixed volume or shape
What is gas?
200
a set of objects, organisms, or different parts acting to form
a whole
What is system?
300
a force that opposes the relative motion of two material
surfaces in contact with one another
What is friction?
300
a substance that cannot be reduced to a simpler substance
by chemical means
What is element?
300
emission of energy in the form of rays or waves
What is radiation?
300
a type of simple machine; a slanted surface that makes it
easier to move a mass from a lower to a higher point
What is inclined plane?
300
a plan of inquiry that uses science process skills as a tool to
gather, organize, analyze, and communicate information
What is scientific method?
400
a force of attraction between two masses
What is gravitation?
400
a particle, object, or system that lacks a net charge
What is neutral?
400
energy stored in an object due to the object’s configuration
and position
What is potential energy?
400
a type of simple machine; consists of a rigid bar that pivots
about a fulcrum, used to transmit and enhance power or
motion
What is lever?
400
a procedure that is carried out in order to observe a
response caused by a stimulus; not a complete experiment
What is investigation?
500
the property of an object, due to its mass, that causes it to
resist any change in its motion unless overcome by a force
What is inertia?
500
a subatomic particle having a positive charge and which is
found in the nucleus of an atom
What is proton?
500
internal energy found by adding the kinetic energy of
particles making up a substance
What is thermal energy?
500
electromagnetic radiation that lies within the visible range
What is light?
500
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