Is It Quality?
Where'd It Come From?
Don't Be Salty!
Earth Bending?!?!
Bones...
100
This term describes the health or condition of water based on factors like pH, dissolved oxygen, temperature, turbidity, nitrates, and bioindicators.
What is water quality?
100
Pollution from a specific, identifiable location, like a factory pipe, is called this.
What is point source pollution?
100
These are movements of ocean water caused by wind, temperature differences, and Earth’s rotation.
What are ocean currents?
100
This law states that the oldest rock layers are at the bottom and the youngest are at the top.
What is the Law of Superposition?
100
Preserved remains or traces of organisms that lived in the past are called this.
What are fossils?
200
This water quality indicator measures how acidic or basic water is.
What is pH?
200
Pollution from many scattered sources, such as streets, farms, and parking lots, is called this.
What is nonpoint source pollution?
200
The Earthly element is the driving force of surface currents.
What is wind?
200
In undisturbed rock layers, the oldest rocks are found here.
What is the bottom?
200
Footprints, burrows, or tracks are examples of this type of fossil.
What are trace fossils?
300
A body of water has a high pollution level. This indicator would let you know right away.
What are bioindicators?
300
A factory releases wastewater directly into a river through a pipe. What type of pollution is this?
What is point source pollution?
300
This ocean current system circulates water around the entire planet and distributes heat.
What is the Global Ocean Conveyor Belt?
300
This type of rock forms when magma reaches the surface and cools.
What is igneous rock?
300
A fossil of a marine organism is found high on a mountain. What does this suggest?
What is "The area was once underwater or covered by an ancient sea".
400
This can occur if there is too many nitrates in the water?
What is Eutrophication?
400
Fertilizers and pesticides washing from farms into waterways during rain is called this.
What is agricultural runoff?
400
This process moves heat and salt across the globe.
What is Thermohaline Circulation?
400
A fault or intrusion that cuts through rock layers must be this compared to the rocks it cuts through.
What is younger?
400
I am an index fossil. Who am I?
What is ammonite?
500
The turbidity of a body of water is high. These other indicators may be impacted.
What are temperature and dissolved oxygen?
500
A community notices that a nearby river has high nitrate levels after several days of heavy rain. The area includes farms, neighborhoods, and roads. Why would this pollution be difficult to trace to one exact source?
What is "because the nitrates could come from many scattered sources"?
500
These two things make up the difference between a surface current and a deep ocean current.
What are temperature and salinity?
500
This was the era of the dinosaurs! Bonus: The T-Rex was last seen in this period.
What is the Mesozoic era?
Bonus: What is the Cretaceous period?
500
Two rock layers in different locations contain the same index fossil. Scientists ca infer this about the two layers.
What is "two rock layers are about the same relative age"?