Understanding Plate Boundaries and Tectonics

A) A large piece of Earth’s outer layer that fits together like a puzzle

B) A small rock found only in volcanoes

C) A tool used by geologists to dig trenches

D) The layer of water on top of Earth’s surface

A) The imaginary lines that mark the middle of an ocean

B) The places where tectonic plates meet each other

C) The borders between continents and oceans

D) The deep cracks found only in deserts

A) Because they are always warm and have lots of plants

B) Because they are often associated with earthquakes and volcanoes

C) Because they’re the only places where you’ll find mountains

D) Because they never change

A) Convergent

B) Divergent

C) Transform

D) Circular

A) Come together and collide

B) Slide past each other horizontally

C) Spread apart from each other

D) Stay completely still

A) Spread apart

B) Slide past each other

C) Come together and collide

D) Spin around each other

A) One plate dives underneath another plate

B) Two plates build a ridge in the middle

C) Both plates change places and become water

D) The plates stop moving forever

A) Spread apart and form a new crust

B) Slide past each other horizontally

C) Collide and form mountain ranges

D) Stand still

A) The Mid-Atlantic Ridge

B) The Himalayas

C) The San Andreas Fault

D) The Mariana Trench

A) Mountain range caused by collision

B) Ocean trench formed by subduction

C) A ridge where magma escapes between spreading plates

D) A sliding fault line