Matter and Chemistry
The smallest complete unit that is a building block of all matter
an atom
This type of organism produces glucose for itself and for most other organisms as well.
This scientific law states that older layers of rock can be found below those that are newer.
The Law of Superposition
The kind of water found in an estuary
Brackish
a subatomic particle that has a positive charge
a proton
What a disease is called when it's spread to multiple countries throughout the world
A pandemic
Rocks, sunlight, water, and air, are all considered this in an ecosystem
Abiotic factors
This type of rock forms after hot lava cools and hardens
Igneous
The percentage of freshwater found on Earth
3%
The two most reactive groups on the Periodic Table
Groups 1 and 17
The type of pathogen that causes strep throat and most food poisoning
Bacteria
In a food chain containing algae, shrimp, a fish, a shark, and bacteria, this is classified as a primary consumer.
The shrimp
The scientific process in which organisms with better traits for survival reproduce and pass the traits on, creating an overall stronger species.
The Theory of Natural Selection
A type of energy source that's being used up faster than it can be replenished
Nonrenewable
The scientific law that states that the mass of the reactants is equal to the mass of the products
Law of Conservation of Mass (or Matter)
Parasites and viruses need this in order to reproduce
A host cell
Cellular respiration is a process in which cells do this.
Use oxygen & glucose to create usable energy
These types of evidence help scientists connect different organisms to a common ancestor
Homologous structures
The word for water that is cloudy and not clear
Turbid
The two reactants in the chemical equation for photosynthesis, written as compounds
H2O + CO2
The best way to treat an infection caused by bacteria
Antibiotics
This very important chemical element flows through an ecosystem in a cycle and is stored in 5 major locations on Earth.
Carbon
A term used to describe how scientists use the layers of the earth the determine the approximate age of a fossil when compared to other layers or fossils
Relative dating
Burning fossil fuels creates an excessive amount of this gas in the atmosphere, leading to global warming