Vocab Flashcards
Theory
Ideas that have been supported over time.
Hypothesis
The proposed scientific explanation for a set of observations. Usually written in If… Then format.
Dependent variable
Observed factor that may change in response to the other variable. (Outcome)
Independent variable
The factor that is purposely changed in an experiment.
Controlled experiment
Is a test in which only one variable is changed while the other variables remain the same.
Cell
The smallest unit of an organism that can be considered to be alive.
Homeostasis
The process by which organisms keep their internal body conditions fairly constant to survive.
Evolution
A change in a kind or organism over time.
Atom
The basic unit of matter.
Nucleus
The center of an atom.
Proton
The positively charged particle found in the nucleus of an atom.
Neutron
The particle with no charge found in the nucleus of an atom.
Electron
The negatively charged particle found outside the nucleus of an atom
Element
A pure substance that consists entirely of one type of atom.
Isotopes
Atoms of the same element with different numbers of neutrons.
Macromolecules
The process by which large compounds are built by joining smaller ones together.
Ion
Positively or negatively charged atom.
Ionic bond
Formed when one or more electrons are transferred from one atom to another.
Covalent bond
Forms when electrons are shared between atoms.
Nucleotide
A monomer of nucleic acid.
Deoxyribonucleic acid
The nucleic acid that contains all genetic information for a cell
Glucose
A monomer of carbohydrates (sugar)
Amino acid
The monomer of protein
Solute
The substance that is that is dissolved in a solution
Ecology
The scientific study of interactions among organism and between organisms and their environment.
Biosphere
Is a portion of the in which all life exists
Species
A group of an organism so similar to one another that they can breed and produce fertile offspring
Population
A group of individuals that belong to the same to the same species and live in the same area
Community
Two or more different populations that live in a defined area
Solvent
The substance in which the solute dissolves in a solution
