The blue particles represent this and have this charge.

What are electrons and negative?
This resource is considered nonrenewable and is made from the decaying remains of living things.
What are Fossil Fuels?
The process by which modern organisms have descended from ancient organisms?
What is evolution?
This law states that the oldest rock layer will be found on the bottom and the youngest on the top.
What is the Law of Superposition?
Water found on the surface of the earth
What is surface water?
This is all the living and nonliving things in an environment.
What is an ecosystem?
Elements in the same group have this in common.
What is similar properties and reactivity?
A renewable resource that uses water motion to turn turbines and make electricity.
What is Hyrdroelectric Power (or Tidal Power)?
This factor of natural selection involves a random mutation that is helps an organism survive in its environment.
What is adaptation?
This type of fossil can be found in many different locations across the earth (widespread), only found in one rock layer in each location (short lived), and there are a lot of them (abundant).
What is an index fossil?
The region of land drained by a river and its tributaries
What is river basin?
Plants and animals are considered this type of factor in an ecosystem.
What are biotic factors?
This image represents this type of substance.

What is a compound?
A disadvantage to the environment from this type of resource is that birds die from running into the blades.
What is wind energy?
This happens when a random change in the DNA occurs to hurt, improve, or do nothing to an organism.
What is a mutation?
This is the only type of rock that a fossil can be formed in.
What is sedimentary rock?
Used to describe the health of a water system
What is Water Quality?
These are organisms that make their own food.
What are producers?
A type of change that involves creating a new substance with new properties?
What is a chemical change?
This type of energy source is great because it does not release any greenhouse gasses but a drawback is it creates dangerous radioactive waste that cannot be disposed of and must be stored.
What is nuclear energy.
Similar structures found in different species of organisms proves they have a common ancestor.
What are homologous structures?
Pollution that comes from many places or sources that are not easily identified
What is non-point source pollution
This process allows produces to make sugar to use to make energy and releases oxygen as waste
What is photosynthesis?
Compounds and elements are both considered this.
What are pure substances?
This is a way to conserve resources that requires people to separate their waste.
What is recycle?
Tis term describes how well an organism can survive and reproduce in it's environment.
What is fitness?
This can be assumed about the rock layers in 2 locations where the same index fossil was found.
The amount of dissolved salts in seawater
What is salinity
This model shows the flow if energy and matter in biotic factors of an ecosystem incorporating multiple food chains.
What is a food web
This number on the periodic table equals the number of protons and electrons in a neutral atom of that element.
What is the atomic number?
In many of the energy sources, steam is created or wind is used to turn these to power a generator.
What are turbines?
This is the main piece of evidence of evolution found in traces of orgiansms preserved in rock.
What is the fossil record?
This represents the history of the earth based on the fossil record to show major events and represent the last 4.6 billion years.
What is the Geologic Timeline?
Any foreign components in a substance
What are contaminates
This relationship is between 2 organisms where both of them benefit from each other.
What is mutualism?