CK-12 Foundation
Addition of Integers: Adding Electrons
Young mathematical scientists interact with protons and electrons in an atom to create a neutrally charged atom. They answer questions based on their findings throughout the interactive resource.
Curated OER
Vision Props of Signed Numbers
Young scholars explore the concept of titration. For this titration lesson, students observe acid and alkaline reacting. Young scholars discuss pH factor, measuring acidity, neutrality, and alkalinity of liquids. Students put the pH of...