Rock Layers
If fossil A is below fossil B, which fossil is older?
Fossil A
What type of environment would you expect to find shark teeth fossils?
An ocean or marine environment
Name two things that can cause weathering.
Wind, water, ice, and plants.
In the Nile River model, what did the sand represent?
The land
Where are most volcanoes located around the Pacific Ocean?
The ring of fire
If a marine fossil was found at the top of a mountain, what does that tell us about the land?
The land was underwater at some time
A scientist found 3 types of fossils in this order from bottom layer to the top layer
Fern --> Shark Tooth --> Mammal Bone
Which fossil is the oldest?
Fern
Rust on a bike is an example of what type of weathering?
Chemical
Erosion is the ________ of rock and soil.
What type of plates make up the Earth's crust?
Tectonic plates
What caused the Kamil crater?
A meteorite
A scientist found 3 types of fossils in this order from bottom layer to the top layer
Fern --> Shark Tooth --> Mammal Bone
Which fossil is the youngest?
Mammal Bone
What is it called when sand or rocks scrape against a surface and wear it down?
Abrasion
What is the difference between weathering and erosion?
Weathering breaks down rock and erosion moves it
Where do most mountains, volcanoes, and earthquakes happen?
What might happen to the rock layers when a meteorite hits land?
The layers may be out of order.
What are fossils called that only appear in a limited period of time?
Index fossils
What type of weathering happens when rocks break apart but don't change chemically?
Mechanical weathering
How did increasing the slope affect erosion in our investigation?
Steeper slope = faster water = more erosion
What causes earthquakes?
Movement of tectonic plates
What is the principle that tells us that youngest rock layers are at the top and older layers are at the bottom?
The Principle of Superposition
If two fossils are in the same rock layer, this means they are the same _____.
Age
How is the Sphinx being weathered?
Wind carries the sand and scrapes against it
Why could building a house near a cliff be risky?
Erosion could wear away the land over time
Why is Egypt unlikely to have frequent volcanic eruptions?
There are no major plate boundaries near Egypt