This site provides an overview of elements and atoms, the building blocks of matter.

Did you know matter is made up of atoms? In this article learn about the smallest unit of matter called the atom.

Students investigate the structure and parts of the atom, and learn about atomic mass and atomic number. They also explore the differences among solids, liquids, gases, and plasma.

Review matter and atoms in this Jeopardy-style game.

Acting as a subtopic of the General Chemistry Virtual Textbook's section on Atoms and the Periodic Table, this site discusses the relation between matter and energy with attention given to Mass-energy, energy, and relativity.

This unit covers introductory concepts of mixtures and solutions. Students think about how mixtures and solutions, and atoms and molecules can influence new technologies developed by engineers. The first lesson explores the fundamentals...

Antimatter, the charge reversed equivalent of matter, has captured the imaginations of science fiction fans for years as a perfectly efficient form of energy. While normal matter consists of atoms with negatively charged electrons...

Chloe Malbrunot investigates matter and anti-matter by placing two atoms- one made of matter, and the other antimatter- in the cockpit of a plane, ready to jump. What do you think will happen? [2:54]

Discover atoms and molecules which make up matter, motion of atoms and how to measure the mass, volume and density of matter.

A resource provided to Grade 8 teachers to address the School District of Philadelphia's Core Curriculum on the topic of Matter. It covers properties and states of matter, elements, compounds, mixtures, atoms, and the periodic table....

After watching this simulation, students will be able to describe characteristics of the three states of matter. They will watch as atoms and molecules change between solid, liquid and gas phases.

In this interactive activity from ChemThink, students will examine the basic properties of matter at an atomic level and consider how various atoms affect the way a substance behaves.

In this interactive activity from ChemThink, students will take a closer look at atomic structure, properties, and behaviors. Includes background reading material and discussion questions.

Matter is all around us, so it's a good idea to know what it is, and why it matters. Learn about matter, its categories, and its subcategories with this interactive lesson.

Created to teach students of the 21st century, SOPHIA is bringing matter straight to your fingertips. Become the commander of your own learning experiences as you take part in this interactive tutorial. [1:02]

An interactive simulation will heat, cool and compress atoms and molecules. Watch as they change between solid, liquid and gas phases. Recognize that different substances have different properties which will affect the temperatures for...

Using simulations observe what solids, liquids, and gases look like at the atomic scale. After observing the different states of matter at their atomic level, students will be able to conclude about the forces and attractions that exist...

Everythingin the universeis either matter or energy. All matter is made of combinations of about one hundred basic building blocks, the chemical elements on the periodic table. Going a step further and breaking these elements down to...

Tutorial provides a discussion of UV-Vis spectroscopy, infrared (IR) spectroscopy, and the Beer-Lambert law.

A video and a short quiz on the parts of an atom, the periodic table, and molecules.

[Free Registration/Login may be required to access all resource tools.] Examine the composition of matter.

[Free Registration/Login may be required to access all resource tools.] Examine the composition of matter.

[Free Registration/Login may be required to access all resource tools.] Examine the composition of matter.

[Free Registration/Login may be required to access all resource tools.] Introduction of the idea of the atom and the diversity of matter.