Show:
Hydrosphere
Chemistry
Fossils
Ecosysetems
Periodic Chart
100
The three main groups of marine life
What are Plankton, Benthos, and Nekton?
100
Solid, liquid, gas, and plasma
What are the four states of matter?
100
Widely distributed and represents a type of organism that existed briefly.
What is index fossil?
100
An organism that eats both plant and animal decay
What is a Detritivore?
100
Measured in ounces and grams
What is mass?
200
Factories using water as a cooling agent
What is Thermal pollution?
200
Two or more elements chemically combined
What is a compound?
200
Provides evidence about the history of life on Earth. It explains how different groups of organism have changed over time
What is a fossil record?
200
Amount of energy passed between trophic levels
What is 10 percent?
200
The rows on the periodic chart
What is a period?
300
This occurs when normally dry land is hit with more water than it can absorb
What is a flood?
300
Changes that do not alter the chemical composition
What is a physical change?
300
When many animals become extinct at once
What is mass extinction?
300
Elements that cause eutrophication
What is Nitrogen and Phosphorous?
300
The columns on the periodic table
What is a family?
400
Low levels of oxygen in the water
What is Hypoxia?
400
the smallest unit of an element that maintains the properties of that element
What is an atom?
400
The exact number of years since a rock was formed
What is absolute age?
400
Occurs due to a limited number of natural resources
What is Competition?
400
Increases as you go from left to right across the periodic table
What is the Atomic number?
500
Land around an area that feeds into a river
What is Watershed?
500
A sample of matter that has definite chemical and physical proerties
What is a pure substance?
500
A gap in the geologic record
What is an unconformity?
500
Oxygen molecules are stripped from the nitrogen
What is Denitrification?
500
This person created the periodic table.
Who is Dmitri Mendeleev?