The Dynamic Earth
What does Dynamic Earth mean
Earth is changing constantly
What was the name of the supercontinent
Pangaea
Who proposed continental drift
Alfred Wegener
What is a constructive force
One that builds up the Earth
The process that breaks rocks down into smaller pieces is
Weathering
Give an example of an internal force
Volcano, earthquake
What do we call the theory that states continents move across the Earths surface
Continental Drift
What was his main occupation or area of studey
Meteorology
Give the main example of a constructive force
Volcano
The dropping off of sediment is called
Deposition
Natural Features are called what
Landforms
Continents move because the Earth's crust is divided into
Tectonic Plates
What was the main clue behind his theory
Identical fossils found on different continents
What is a destructive force
One that breaks down the Earth's surface
Molten rock beneath the surface is called
Magma
Mountains valleys and plains are examples of what
Landforms
Areas where tectonic plates meet are called what
Boundaries
Which two continents appear to fit like a puzzle
South America and Africa
Give an example of a destructive force
What rock is formed by cooling magma
Igneous
Make a statement the best describes Earth's surface
It is ever changing
What is the difference between internal and external forces
One happens inside the Earth while the other is on the Earth's surface
List the four main pieces of evidence that support his theory
fossils, rock formations, climate evidence, puzzle pieces
Rocks formed by compacted sediments are called
Sedimentary
What are the three main causes of erosion
Wind, Water and ice