Flood. In 1993, the Great Midwest Flood killed 48 people and caused $18 billion in damage.

England. A CAT scan is a series of x-rays that are assembled by a computer to create detailed images.

Northeast. Estuaries are a transition zone between river environments and ocean environments.

Erythrocyte. Erythrocytes are responsible for delivering oxygen to body tissues.

The Floor. Lobsters use their antennae as sensors to navigate the murky environment at the bottom of the ocean.

Precipitation. Drizzle, rain, snow and sleet are several of the different forms of precipitation.