Front

How many continents are on Earth?

Back

Seven - North America, South America, Europe, Africa, Asia, Australia, Antarctica

Front

What causes earthquakes and volcanoes?

Back

tectonic plate movement

Front

What process works with weathering to change Earth’s surface?

Back

erosion

Front

What force has caused the fastest change in Earth’s environment in the last 50 years?

Back

human actions

Front

What moves over the Earth’s mantle creating changes in Earth’s surface features?

Back

tectonic plates

Front

What causes islands to form?

Back

cooled magma building up and reaching the surface of the ocean

Front

What is the Ring of Fire?

Back

a long, narrow band of volcanoes surrounding the Pacific Ocean

Front

What is weathering?

Back

the process where Earth's landforms wear away over time as a result of wind, rain, and flowing water

Front

What is erosion?

Back

The process in which parts of rock are moved elsewhere as the result of wind, rain, or ice

Front

How long does it take plates to move enough to create landforms?

Back

millions of years