What is the smallest unit of a chemical element that can still retain
the properties of that element
100
calorie
What is What is unit of energy; the amount of heat needed to raise one gram
of water one degree Celsius at standard atmospheric
pressure
100
Wheel & axle
What is a type of simple machine that consists of a rod driven
through the center of a cylinder that is allowed to rotate
freely, yielding a mechanical advantage equal to the
cylinder’s diameter
100
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
200
crest
What is the peak or highest point on a wave
200
a substance that cannot be reduced to a simpler substance
by chemical means
What is element
200
a quantity that describes the capacity to do work; a source
of usable power
What is Energy
200
a type of simple machine; a circular lever, usually a wheel
with a groove where a rope can be placed and used to
change the direction of a force
What is Pulley
200
System
What is a set of objects, organisms, or different parts acting to form
a whole
300
the observed effect of the force of gravitation
What is gravity
300
Electron
What is What is a stable elementary particle that is negatively charged and
orbits the nucleus of an atom
300
Energy transfer
What is a change of energy from one form to another (e.g.,
mechanical to electrical, solar to electrical)
300
Mixture
What is the product of a thorough blending of two or more
substances, not chemically combined
300
Variable
What is the event, condition, or factor that can be changed or
controlled in order to study or test a hypothesis in a
scientific experiment
400
Trough
What is the lowest point on a wave
400
a particle, object, or system that lacks a net charge
What is Neutral
400
a change of energy from one form to another (e.g.,
mechanical to electrical, solar to electrical)
What is Evaporation
400
Screw
What is a type of simple machine that consist of an inclined plane
wrapped around a cylinder
400
Scientific method
What is a plan of inquiry that uses science process skills as a tool to
gather, organize, analyze, and communicate information
500
the distance between crest of a wave
What is Wavelength
500
Proton
What is a subatomic particle having a positive charge and which is
found in the nucleus of an atom
500
Heat
What is a form of energy resulting from the temperature difference
between a system and its surroundings
500
a repetitive movement around an equilibrium point
What is vibration
500
Investigation
What is a procedure that is carried out in order to observe a
response caused by a stimulus; not a complete experiment