Earth History
Matter
Evolution
Periodic Table
Disease
100
A fossil known to have lived in a particular geologic age that can be used to date the rock layer in which it is found.
What is an index fossli
100
Anything that has mass and takes up space
What is matter
100
A theory that describes how organisms change over many generations.
What is the Theory of evolution
100
Matter that has constant chemical composition and definite chemical and physical properties
What is pure substance
100
An organism that causes disease
What is a pathogen
200
An igneous rock layer formed when magma hardens beneath Earth's surface
What is an intrusion
200
A substance made up of atoms of two or more different elements joined by chemical bonds
What is a compound
200
The shared ancestor of new, different species that arose from one population
What is a common ancestor
200
The average mass of one atom of an element that give the number of protons and neutrons
What is atomic mass
200
The occurrence of a large number of cases of a disease in a short period of time
What is an outbreak
300
A type of rock that is formed from the accumulation deposits of rock, minerals, or the remains of plants and animals.
What is sedimentary rock
300
A mixture that is the same throughout.
What is a homogeneous mixture
300
An organism's physical appearance, or visible traits. and An organisms genetic makeup.
What is phenotype and genotype
300
Elements that have a mixture of metal and nonmetal properties
What is metalloid
300
The way a pathogen moves from one organism to another.
What is transmission
400
Earth's history organized into four eras: Precambrian, Paleozoic, Mesozoic, and Cenozoic.
What is the geologic time scale
400
A mixture in which one or more substances are evenly distributed in another substance.
What is a solution
400
Process by which individuals that are better suited to their environment survive and reproduce most successfully.
What is natural selection
400
Characteristics of a substance that can be observed, measured, or changed and used to identify matter.
What is a property
400
A disease that is caused by a pathogen and that can be spread from one individual to another.
What is infectious
500
A break in the geologic record created when rock layers are eroded or when sediment is not deposited for a long period of time.
What is unconformity
500
A characteristic of a pure substance that can be observed without changing it into another substance
What is a physical property
500
A characteristic that improves an individual's ability to survive and reproduce in a particular environment.
What is an adaptation
500
A process during which chemical bonds between atoms are broken and new ones are formed. Producing one or more different substances.
What is a chemical reaction
500
An organism that transmits pathogens from one host to another.
What is a vector
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