Watch the effects of caustic soda on bacteria under the microscope.

See how tea tree oil affects bacteria under the microscope. Authorities release videos, photos of 'potential subject' in Nancy Guthrie case Scientists say we may have been wrong about the origin of ...

Sourdough is the oldest kind of leavened bread in recorded history, and people have been eating it for thousands of years. The components of creating a sourdough starter are very simple – flour and ...