Month: July 2025

EXPERIMENT
A controlled test designed to support or refute a hypothesis.

OBSERVATION
The act of collecting data from natural occurrences or controlled experiments.

LAW
A mathematical or descriptive statement that reliably predicts natural phenomena.

THEORY
A well-supported explanation of natural phenomena based on repeated experimentation and observations.

HYPOTHESIS
A proposed explanation for an observed phenomenon, subject to testing.

SCIENTIFIC METHOD
A systematic approach to investigation involving observation, hypothesis, experimentation, and theory development.

BIG BANG THEORY
The modern cosmological model stating that the universe originated from a singular point and expanded.

PRECESSION
The slow wobble of Earth’s rotational axis, first noted by Hipparchus.

EPICYCLES
Circular orbits within orbits used in Ptolemy’s geocentric model to explain planetary motion.