Natural science is a branch of science concerned with the description, prediction, and understanding of natural phenomena, based on empirical evidence from observation and experimentation
Mechanisms such as peer review and repeatability of findings are used to try to ensure the validity of scientific advances
Natural science can be divided into two main branches
Life science (or biological science)
Physical science is subdivided into branches:
Physics
Space science
Chemistry
Earth science
These branches of natural science may be further divided into more specialized branches (also known as fields)
Natural sciences are interconnected and often share fundamental principles
Laws of motion in physics also apply to celestial bodies studied in astronomy
Principles of chemistry underlie many biological processes in biology
