Day in the Life of the Hudson River

A geographic coordinate specifying a location’s distance from the equator, affecting climate and weather.

The sun’s energy that reaches Earth, which varies by season and latitude.

Periods in the year marked by specific weather patterns and daylight hours, caused by Earth’s axial tilt.

When one hemisphere reaches maximum tilt toward or away from the sun, marking the longest or shortest days.

When both hemispheres receive equal sunlight, resulting in day and night being approximately equal in length.

Mixture of fresh and salt water

a barrier of wood timber, concrete or metal, holding the shore in place along the water’s edge

water moving continuously in a certain direction

the organic debris from decaying organisms (biology) or the grains or small fragments of rock (geology)

the amount of oxygen gas in the water

the outgoing tidal current

the incoming tidal current

a number used in expressing acidity or alkalinity on a scale with values running from 0 (acidic) to 14 (alkaline); 7 is neutral

a measure of the amount of dissolved salts in water

the leading edge of seawater entering an estuary

loose sand, clay, silt and soil particles, broken down by weathering and erosion, that settle at the bottom of a water body (see image with examples)

how cloudy or clear the water is

the alternating rise and fall of the surface of the ocean and bodies of water closely linked to it

Pipes and canals that move water from where it is abundant to areas where it is scarce.