The rising and falling of the ocean level, usually twice a day.
What are tides?
To make the air or water dirty.
What is polluted?
What is vegetation?
River water rushes through this to keep other land areas from flooding.
What is a dam?
This natural resource is important for swimming, sailing, boating, windsurfing, fishing and having fun.
What is water?
To water crops.
What is irrigate?
The weather in a place year after year.
What is climate?
Something found in nature that people use, such as trees, water, minerals.
What are natural resources?
A machine that produces electricity.
What is a generator?
This fish, an important natural resource for WA state, lives part of its life in freshwater and part of its life in the ocean.
What is salmon?
Water in the air.
What is moisture?
Western Washington has a milder ________
than Eastern Washington.
What is climate?
Changes people make to the land.
What are human features?
Cars, factories, and the building of dams and bridges are examples of inventions that can cause this harmful effect to our earth.
What is pollution?
A good time to see crabs, starfish and other sea animals.
What is low tide?
Electricity that comes from a water source.
What is hydroelectricity?
Moving air.
What is wind?
Ways to move people from one place to another.
What is transportation?
The largest river in Washington state and it's most important source of electricity.
What is the Columbia River?
This plant grows wild on the driest land, east of the Cascade Mountains.
What is sagebrush?
Lakes and rivers that are not salty.
What is freshwater?
Water that falls to the earth as rain or snow.
What is precipitation?
The landforms, plants, and climate of a place.
What is the natural environment?
Changing wood into lumber, or gravel and stone into cement are examples of how people use or change things found in nature.
What are human features?
Washington state has sandy beaches, rocky coastlines, deep lakes, sparkling rivers, forests, meadows, grasslands, mountains, rolling hills, rainforests and many wild animals.
What is the natural environment of WA state?