Geoscience Processes
The upward movement of Earth's crust to form mountains.
What is uplift?
A fossil of an organism’s body or body parts.
A supercontinent that existed about 250 million years ago.
What is Pangea?
Type of rock formed from cooled lava or magma.
What are igneous rocks?
"Age of Mammals" era; humans appear in the timeline
What is the Cenozoic Era?
Fossils tell us:
When an organism lived
What the environment was like
How life has changed over time
Evidence of Pangea includes __________ fossils across different continents.
What is matching?
Rocks formed from pre-existing rocks that undergo heat and pressure over time.
What are metamorphic rocks?
"Age of Dinosaurs" era; first reptiles, birds, and mammals
What is the Mesozoic Era?
What is tsunamis?
Found in only one layer in many locations; help scientists date rock layers.
What is an index fossil?
Evidence of Pangea includes _________ rock layers and mountain ranges across different continents.
Type of rocks that form from layers of sediment compacted and cemented in layers over time.
What are sedimentary rocks?
Earth forms during this era, first life (simple cells such as bacteria)
What is the Precambrian Era?
Formed many valleys, rivers, and water bodies from melting in the past that still exist today.
What are glaciers?
Similar fossils on different continents show continents were once _________.
What is connected?
A theory developed by Alfred Wegener that proposed an explanation of how continents drifted apart to the locations they are found now.
What is continental drift theory?
The only type of rock that fossils can form.
What are sedimentary rocks?
First fish, first land plants, and amphibians appear during this era
What is the Paleozoic Era?
The theory that describes the movement and recycling of segments of Earth's crust.
A fossil of an organism’s footprints, burrows, or other features created by an organism’s movement.
What is a trace fossil?
What is puzzle?
Rock layers.
Law that states: In rock layers, the oldest layers are at the bottom and the youngest are at the top.
What is the Law of Superposition?