Northwest

pHpH

A scientific scale measuring acidity

and alkalinity.

GreenhouseGases

Greenhouse GasesGases that trap heat in

the Earth’s atmosphere.

UpwellingUpwelling

A process in which deep, cold, nutrient-rich waters

from the ocean rise to the surface.

Fossil FuelFossil Fuel

A fuel derived from the remains of ancient plants and animals.

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Northwest

Food WebFood WebA map of the

interconnected food relationships in a community.

Sustainability

Ecosystem

Phytoplankton

SustainabilityMeeting the needs of the present

without limiting the ability of people, other species and future

generations to survive.

EcosystemA community of

living things interacting in an environment.

PhytoplanktonPlants in the ocean that drift with the currents.

ZooplanktonZooplankton

Animals in the ocean that drift with the currents.

Northwest

Carbonic AcidCarbonic AcidA weak acid that is formed from water and carbon dioxide.

PlanktonPlankton

Organisms in the ocean that drift with the currents.

CalciumCarbonate

OceanAcidification

Biodiversity

Calcium CarbonateA chemical compound

found in shells and bones.

Ocean AcidificationThe change in ocean

chemistry due to increased carbon dioxide in the atmosphere.

BiodiversityThe variety of living

organisms in an environment.