Dictionary.com
Thesaurus.com

life science vs. physical science

life science

noun

life sciences plural

  1. any science that deals with living organisms, their life processes, and their interrelationships, as biology, medicine, or ecology.

physical science

noun

physical sciences plural

  1. any of the natural sciences dealing with inanimate matter or with energy, as physics, chemistry, and astronomy.

  2. these sciences collectively.