Mystery Science: The Birth of Rocks Unit Review

Front

Where is the Ring of Fire located?

Back

along the edge of the Pacific Ocean

Front

Will a mountain last forever?

Back

No, a mountain won't last forever. Ice wedging and root wedging break rock apart.

Front

What shape does the Ring of Fire make?

Back

a circular or horseshoe pattern

Front

Where are most of the volcanoes in the world?

Back

in the Ring of Fire

Front

Why do cone volcanoes explode?

Back

They have thick lava that traps the bubbles and creates pressure, causing an explosion.

Front

Why do shield volcanoes flow gently?

Back

Their thin lava lets the bubbles out freely.

Front

How can you tell the difference between volcanoes that explode and those that don't by looking?

Back

Volcanoes that explode are cone-shaped. Those that don't are shaped like a shield.

Front

What is the difference between felsite and basalt lava?

Back

Felsite is light-colored. Basalt is black.

Front

Which kind of volcano is Mount St. Helens?

Back

cone

Front

What is ice wedging?

Back

Water freezes in cracks of rocks and expands, breaking the rocks apart.