Understand the basic structure of atoms and molecules in the Earth's crust.

In this online biology textbook, learn about atoms and molecules as they relate to life. Find out about topics such as electrons and energy, chemical bonding, and chemical reactions.

A model that explores why electrons are so important in chemistry. Investigate electron clouds, what happens when two atoms come together, and chemical polarity.

When two or more atoms combine they give rise to a molecule. A molecule can be made up of many atoms of the same element. There are 112 elements known to man, so can you imagine the different permutations and combinations of molecules...

This lesson plan explores the fundamentals of atoms and their structure. The building blocks of matter (protons, electrons, neutrons) are covered in detail. Young scholars think about how atoms and molecules can influence new...

In this interactive, students can explore how current, voltage, and resistance are related in a model showing the flow of electrons in an electric circuit. They will learn about Ohm's law and how other forms of energy can be made from...

In this hands-on lesson, students use candy to construct models of nutrients (carbohydrates, proteins, and fats). Create visualizations that will aid in learning about dehydration synthesis and bond saturation in fat molecules. Includes...

George Zaidan and Charles Morton shape our image of molecules. [3:47]

Young scholars discover the concept that two atoms can attract and form a covalent bond.

Students draw and interpret Lewis dot diagrams for individual atoms and both covalent and ionic compounds.

Learn how basic elements form molecules to support life.

Explore how Newton's three laws apply to the world of atoms and molecules. Start with the originally contradictory observation of Brownian motion. Then, each law is addressed at the atomic level.

This page explains what electronegativity is, and how and why it varies around the Periodic Table. It looks at the way that electronegativity differences affect bond type and explains what is meant by polar bonds and polar molecules.

Some molecules can be either left- or right-"handed." The left- and right-handed molecules have the same number and type of atoms, and their chemical structures look identical, but they are actually mirror images of each other. Many...

Calculate the density of cubes made of different materials to determine what type of material it contains. Using this information explain that the size, mass, and arrangement of the atoms or molecules of a substance determines its density.

This interactive activity developed for Teachers' Domain demonstrates how attractive forces between atoms create chemical bonds, resulting in the formation of molecules and compounds.

The atoms around you have existed for billions of years- and most originated in the flaming, gaseous core of a star. Dennis Wildfogel tells the captivating tale of these atoms' long journeys from the Big Bang to the molecules they form...

A collection of lesson plans for helping students understand atomic composition. Site uses work samples, phenomena, assessment templates, and videos to plan lessons to describe the atomic composition of simple molecules.

Kids learn about organic chemistry including the importance of carbon, organic molecules, compounds, hydrocarbons, synthesis, and functional groups.

Detailed explanation of Valence Shell Electron Pair Repulsion (VSEPR) Theory with examples and questions for the reader to check comprehension. Also includes step-by-step instructions for correctly building molecules using VSEPR Theory....

This video is a professional development resource that explores student misconceptions about atoms, molecules, and chemical reactions. It also gives some pedagogical approaches for approaching these subjects. [10:12]