Cannonball bomb main content.

Cannonball bomb

Part of Hall of Planet Earth.

Cannonball Bomb

Exhibition Text

When the bomb hits the ground and hurtles down the slope, making a whirring noise, its corners become sheared, and the hardened form appears as a smooth, rounded lump.

Provided by Lava Beds National Monument and Jeff Dinnel, Tionesta, California

For Educators