Earth's History/Evolution
Energy/Ecosystems
Microbiology
Chemistry
Hydrology
100

Organic matter exposed to minerals turned into a rocky substance

Petrification

100

Gasses that absorb infrared radiation in the atmosphere causing the Earth to heat up

Greenhouse Gasses

100

A microbe that can cause a disease

Pathogen

100

The smallest unit of an element that has all the properties of the element

Atom

100

An area where salty ocean water mixes with fresh water from river

Estuary

200

A long tube shaped sample of ice taken from a glacier that helps to give us data about the composition of the Earth's atmosphere during long periods of time

Ice cores

200

Energy sources that cannot be replaced as quickly as they are used

Nonrenewable Resources

200

A cell in which a parasite or virus lives

Host Cell

200

A mixture in which different parts are easily identified

Heterogenous Mixture

200

The shoreline area that falls between the high tidemark and the low tidemark

Intertidal Zone

300

The idea that similarity of embryos show a common ancestor

Embryology

300

Interactions between two different organisms in which both organisms benefit

Mutualism

300

To change the genetic make-up of an organism

Mutate

300

A scientific law that states that during a chemical reaction, matter cannot be created or destroyed but can be changed into a different form

The Law of Conservation of Matter

300

The tendency of water to stick to other substance

Adhesion

400

Structures that appear to be similar but are not; no common ancestor 

Analogous Structures

400

An organism that obtains nutrition and energy by eating other organisms

Consumer

400

Making an exact genetic copy of a cell, organ, or organism

Cloning

400

A definite number written smaller beside an element that tells how many atoms of that element are in a compound

Subscript

400

The clarity, pH and other substances present in natural water or drinking water

Water Quality

500

Structures that appear to have no purpose but have not been evolved away

Vestigial Structures

500

Interactions between two different organisms in which one organism benefits at the expense of the other organism

Parasitism

500

The process cells use to obtain energy from foo

Cellular Respiration

500

The vertical column of elements on the periodic table that contains elements having similar chemical properties

Groups

500

A layer of rock that stores water and allows water to flow through it

Aquifer