Its Electric
The directional flow of electrons between ______creates a form of energy called electricity.
atoms
Gasoline, synthetic fiber, and plastic are all _______.
An example of matter in a solid state is _______.
ice
An example of a good insulator is _________.
cement
Direct current is used by __________.
Battery operated instruments
The path of electric current from the generating source through conductors and _________ is a complete circuit.
back to its original source
Atoms consist of what?
Protons, neutrons, and electrons
When molecules ionize, the hydrogen ion is acidic and the hydroxide ion is alkaline
water
UVB rays are the _______ rays in the middle of the UV range.
therapeutic
Alternating current is used by __________.
electric clippers
A rectifier might be used by ________.
rechargeable cordless clippers
The letters pH denote potential hydrogen, the relative degree of ________ of a substance.
acidity or alkalinity
Water is a _________.
universal solvent
An anion is a __________.
negative charged ion
A weak current indicates low _________.
voltage
The flow of electricity along an _________ is an electric current.
conductor
There are 117 known elements, ________ of which occur naturally on Earth.
94
Burning wood is an example of _________.
A chemical change
Another term for base is ______.
Alkali
A benefit of ______current is increased blood circulation.
faradic
A bulb that uses 40 watts of energy per second is _____ watt bulb.
400
The most abundant chemical is _______.
water
destroy microbes
The density of a substance refers to its __________.
weight divided by volume.
Ions that have opposite electrical charges