A conditional sentence is a sentence containing the word if.  There are three common types* of conditional sentence:   ...

Chemical changes make chemical reactions and the creation of new products possible. Typically, a chemical change is irreversi...

Definitions of each of the levels of organization in the human body are a click away...

There are three watersheds in Spain: The Atlantic watershed carries water from the rivers which flow into the Atlantic Ocean. ...

Frankenstein is one of the most horrifying stories ever imagined. This giant monster is made up of body parts stolen from the graveyard (cem...