Tutor and Freelance Writer. Science Teacher and Lover of Essays. Article last reviewed: 2019 | St. Rosemary Institution © 2010-2020 | Creative Commons 4.0

Physical and Chemical Properties

–          All pieces of matter have properties or characteristics.  All matter can be talked about with descriptive terms.  For example, describe the Johnson uniform: –          Scientists have grouped properties into two categories: physical properties and chemical properties. –          The properties you just described when talking about the Johnson uniform are what scientists call “physical properties.” …

The Effect of the Earth’s Rotation & Revolution

The Effect of the Earth’s Rotation & Revolution When watching the stars at night, they do appear to move very slowly.  This is because the Earth is constantly moving. The Earth completes one “rotation” every twenty-four hours.  A rotation is when the planet spins around once. The Earth rotates counterclockwise; this is why the Sun “rises”…

Other Objects in the Solar System

–          Since the universe is so incredibly large, astronomers (scientists who study space) are constantly discovering new objects in the universe. –          Even our solar system is incredibly large and contains countless objects. PLANETS AND THEIR MOONS –          Planets are only some of the objects in our solar system. –          Most of the planets (6…