Test water to tell if it has salt content without having to drink it first. Is there salt in your water? You can easily test this doing a simple science fair experiment. Salt acts as a conductor. That ...
Every great story has a strong foundation—the story structure. Structure helps storytellers answer the critical question: what do I want my audience to know and when?
In the newest Khan Academy ...
At the end of the Mythic Period of China's history, the Xia dynasty gave way to the Shang Dynasty… if the Xia really existed at all! Sal gives an overview of the Xia, Shang, and Zhou Dynast ...
CK-12’s Trigonometry Concepts is an introduction to trigonometry for the high school student. Topics include: Trigonometric Identities & Equations, Circular Functions, and Polar Equations & Complex Nu ...
CK-12 Foundation’s Trigonometry FlexBook® textbook is an introduction to trigonometry for the high school student. Topics include: Trigonometric Identities & Equations, Circular Functions, and Polar E ...
This book explores six strategies for eliminating the gap between consumption and renewable production.
It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you must b ...
An introduction to theoretical probability and data organization, students will learn about events, conditions, random variables, and graphs and tables that allow them to manage data.
It is an educatio ...
CK-12 Foundation’s Basic Probability and Statistics – A Short Course is an introduction to theoretical probability and data organization. Students learn about events, conditions, random variables, and ...
This FlexBook® textbook is an introduction to theoretical probability and data organization. Students learn about events, conditions, random variables, and graphs and tables that allow them to manage ...
An introduction to astronomy written with a historical perspective.
It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you must be logged in).