The subatomic particles in the nucleus of an atom
The change of a substance's identity due to its particles being rearranged
What is Chemical Change?
The cumulative change of characteristics of a population over a period of time
What is Evolution?
The continuous movement of water on, above, and below the surface of the Earth
What is the Water Cycle?
The most common method of obtaining energy
What is Fossil Fuels?
The two groups that are highly reactive towards each other
What is Alkali Metals / Group 1 and Halogens / Group 17?
The signs such as change in temperature, color change, and making new solids or gasses
What is Evidence of a Chemical Reaction?
The place where a plant or animal lives in
What is Habitats?
The natural process in which carbon dioxide and water are converted into sugar
What is Photosynthesis?
The oldest form of energy used by humans; organic matter use from recently living organisms
What is Biomass Energy?
The simplest pure substance made up of only one type of atom
What is Elements?
The group that is most nonreactive due to having a full outer shell
What is Noble Gases / Group 18?
The struggle to gain a limited amount of resources in an ecosystem, in which two or more organisms try to access the same resource
What is Competition?
The interdependent cycle that either stores or releases carbon dioxide
What is the Carbon-Oxygen Cycle?
Resources that can be replaced more or as quickly as we use them
The process in which an atom becomes an ion
What is Ionization?
The mass of a new substance is equivalent to the mass of the reactants combined in order to create that new substance; matter cannot be created or destroyed
The organism interaction in which one organism benefits and the other organism is harmed
What is Parasitism?
The area of land where water is drained downhill into a body of water
What is Watershed?
The splitting of atoms via fission for this type of energy
What is Nuclear Energy?
The mixture that does not have the same properties throughout and often keeps its own separate identities and properties
What is Heterogeneous Mixtures?
The outermost electron shell of an atom that plays a major part in chemical bonds
What is Valence Electron Shell?
The tendency for favorable traits to be selected by nature over less favorable traits in an ecosystem
What is Natural Selection?
The changing of water from a solid directly to a gas with no intermediate liquid stage
What is Sublimation?
The inexhaustible resource that comes from the movement of air heated by the sun
What is Wind Energy?