A changing earth
The _______ scale measure the magnitude or strength of the an earthquake
Richter
An atom has three charges to it.
Neutron, proton, and electron
__________- _____________ occurs when electrical charges build up on the surface of an object.
Static electricity
______ _________ has stored energy
Potential energy
_________- is defined as a force acting on something as it moves a certain distance
Work
_____________ scientists who study volcanoes.
Volcanologist
__________ table of the elements
periodic
A _________ is any material that has the ability to attract iron.
magnet
________ _________ due to motion that potential energy changes into
Kinetic energy
a ________ is any bar that turns on a point
lever
when the magma breaks the surface, it is called ____
Lava
Atoms can have chemical ______ or Chemical _____
change or reaction
Another name for magnetic force is ________
magnetism
________ is the change of an object's position
motion
In a ________________ the effort is between the resistance and the fulcrum
3rd class lever
a ____________ forms where a crack in the earth's crust allows magma and gases to come to the surface.
a _______ represents the average distance of the electrons from the nucleus
Shell
This principal is used by a ________ , a machine that converts motion into electricity energy
Generator
The mass and the velocity of an object determine its _______
momentum
____________ pulley moves up as force is applied
MOveable
volcanoes produce ______ rock as magma and lava cool and harden
Igneous
An ______ is the smallest piece of an element, such as gold, that can be recognized as that element
atom.
_______ ________ is what uses electricity to communicate information.
Electronic device.
The _______ law of motion is sometimes called the law of action and reaction
3rd
An ________________________ is a flat, slanted surface, such as a ramp
inclined plane