In horizontal sedimentary rock layers the oldest layer is at the bottom. Each higher layer is younger than the layers below - what is this called?
Law of Superposition
What numbered layer in the the diagram below is the youngest?
Layer 3
The statement, “The oldest rocks are on the bottom and younger rocks are at the top,” describes which scientific law or theory?
Law of Superposition
What is the difference between point source and non-point source pollution
Point source you can point directly to where the pollution is coming from
Non-point source is not easily traceable
Which two pathogens need a host cell
virus and parasite
A fossil that is widespread, abundant, and lived for a short period of time
Index Fossil
Which letters represent layers younger than Layer S?

Layers R, X, B, J, and F
What is the Relative Age of Layer M compared to Layer S?

Layer M is Older than Layer S
The supercontinent
Pangea
List and describe the two "pure substances"
Element and compound...
Organisms that have different structures but similar functions
Analogous structure
Which layer of rock is the youngest in sedimentary layers?
Top/1st Layer
What type of rock cuts through horizontal layers of sedimentary rock and are younger than the rock layers is disrupts
Igneous Rock
Which is better for the environment, renewable or non-renewable energy? Explain
Renewable
What is a crack in the rock layer called that is caused by an earthquake
A Fault
A structure that serves no purpose
Vestigial structure
Put this in order from oldest to youngest (include the fault line
C, B, A, D, E
What is the difference between relative dating and absolute dating?
Relative dating can estimate a rock’s age in comparison to another object.
While absolute dating can provide an actual age.
How do the particles in an object behave when it is heated up?
Move Faster and Spread out/Become Less Dense
Describe euthrophication in your own words
listen for the answer
A term used to describe how the events that are happening today that are shaping Earth are the same events that have happened in the past
Uniformtarianism
Which layer is the youngest?
Layer H
List 3 factors that make water healthy
answers may vary
List 3 ways in which the periodic table is arranged
answers may vary
Why are fisherman in areas of upwelling and describe what upwelling means
Upwelling...cool-nutrient rich water rises to the surface bringing more nutrients, more nutrients bring more fish to the area