1-10 Flashcards
Theory
Ideas that have been supported over time
Hypothesis
The proposed scientific explanation for a set of observations. Usually written in an If… Then format.
Dependent Variable
Observed factor that may change in response to the other variable
Independent variable
The factor that is purposely changed in an experiment
Controlled Variable
A test in which only one variable is changed while other variables remain the same.
Cell
The smallest unit 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 of organism over time.
Atom
The basic unit of matter.
Nucleus
The center of an atom