"CK-12 Basic Physics - Second Edition covers the following chapters:Units: This chapter covers the basic units used in physics, guidelines for using units, and

CK-12 Foundation's Single Variable Calculus FlexBook introduces high school students to the topics covered in the Calculus AB course. Topics include: Limits, De

An introduction to astronomy written with a historical perspective.

CK-12 Foundation's Chemistry - Second Edition FlexBook covers the following chapters:Introduction to Chemistry - scientific method, history.Measurement in Chemi

Science, engineering, and technology permeate nearly every facet of modern life and hold the key to solving many of humanity's most pressing current and future