This document is an alphabetized science glossary containing definitions of scientific terms from A to Z. It defines terms such as atmosphere, burrow, climate, data, erosion, fungi, galaxy, hibernate, ion, Jupiter, kinetic energy, life cycles, mantle, nervous system, ozone, periodic table, quartz, rotation, surface water, tectonic plates, universe, volcano, weathering, xenon, year, and zinc. The glossary is intended to teach elementary science vocabulary terms from A to Z.