NC 8th Grade Science Vocabulary EOG Review 1

proposed natural selection  to explain change in species

• Charles Darwin 
• Mesozoic
• Reptiles
• Natural selection 

organism with a three-lobed exoskeleton that was abundant in Paleozoic oceans and is considered to be an index fossil

• Pangaea
• Conservation 
• Evolution  
• Trilobite

part of biosphere that includes lakes, streams, oceans, atmospheric water,  and groundwater

• Eutrophication
• Water cycle    
• Hydrosphere
• Cohesion   

more than one kind of element bonded together

• Metals 
• John Dalton 
• Demitri Mendeleev
• Compound

possible explanation based on what you know and what you observe

• Hypothesis       
• Latitude 
• Remote sensing
• Independent variable

theory that Earth processes occurring today are similar to those that occurred in the past

• Fossils    
• Superposition 
• Uniformitarianism
• Radioactive decay

pollution that enters water from a wide area such as lawns, fields, roads, etc.

• Point source      
• Nonpoint source
• Photosynthesis
• Salinity

molecule that includes two hydrogen atoms and one oxygen atom

• Polar molecule  
• Water 
• Geologic time
•  Groundwater

chlorophyll containing, plantlike protists that produce oxygen from photosynthesis

•  Fungi
• Active immunity
• Algae
• Biosphere

distance in degrees north or south of the equator

• Hypothesis       
• Latitude 
• Remote sensing
• Independent variable