Freshwater Vocabulary Words    8.E.1.1, 1.3, 1.4

River Basin

Tributaries

The streams and smaller rivers that feed into a main river

Ground Water

Water located below Earth’s surface

Watershed

An area of land that drains into a stream, river, lake, or other body of water

Freshwater

Water that is not salty

Estuary

A place where freshwater from a river meets and mixes with salt water from the ocean

Stewardship

The following of practices that protect Earth’s resources

Brackish water

Saltwater and freshwater mixed together, but not is salty as seawater. Like in estuaries.

pH

The measurement of how acidic or basic a substance is, on a scale of 0 (very acidic) to 14 (very basic).

Bioindicators

An organism used to monitor the health of an ecosystem.

Macroinvertebrates

organisms without backbones, which are invisible to the eye without the aid of a microscope.

Dissolved oxygen

Microscopic bubbles of gaseous oxygen that are mixed in water and available to aquatic organisms for respiration.

Photosynthesis

The process by which the cells of plants and some other organisms use the energy of sunlight to make their own food.