Geology

The center layer of the earth

• core
• mantle
• lithosphere

The middle layers of the earth

• core
• mantle
• crust

The surface layer of the earth

• Core
• mantle
• crust

broken pieces of lithosphere that float on top of the mantle.

• tectonic plates
• crust
• pangea
• continental drift

Movement of tectonic plates over time is known as _____________

• tectonic plates
• crust
• pangea
• continental drift

Evidence for continental drift

• coninents fit like a puzzle
• similar fossils on different continents
• similar geology on different continents
• all of these

Millions of years ago, all of the continents were part of one supercontinent known as _____________

• Florida
• United states
• Pangea
• Gaia

A _______________ is formed when heat causes material to become less dense and rise, then cool and sink

• tectonic plate
• convection current
• soup

Convection currents in the mantle are responsible for movement of the _________________.

• oceans
• elephants
• tectonic plates
• core

When tectonic plates come together, it is a ___________ boundary.

• Convergent
• divergent
• transform