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NASA
Nasa: Atoms and Molecules in Motion, States of Matter [Pdf]
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...
Thomas Jefferson National Accelerator Facility
Jefferson Lab: It's Elemental Periodic Table of Elements
This page displays the Periodic Table of Elements and allows you to click each individual element for a page that displays in-depth information about that particular element. There are also links to many different games and learning...
American Chemical Society
American Chemical Society: Hompage
ChemCenter, available from the American Chemical Society, provides chemistry news, reference sources and other public services.
PBS
Pbs Learning Media: Periodic Table of the Elements
This interactive periodic table developed for Teachers' Domain provides detailed information about the chemical properties of elements and illustrates the electron configurations that determine those characteristics.
PBS
Pbs Learning Media: Periodic Table of the Elements Essay
This essay, written for Teachers' Domain, describes the foresight and pattern recognition that Russian chemist Dmitri Mendeleyev used to develop the modern periodic table of elements.
Thomas Jefferson National Accelerator Facility
Jefferson Lab: Periodic Elements Memorization Game
How much do you know about the chemical elements? This game will challenge you with questions about chemical symbols, names and atomic numbers.
CK-12 Foundation
Ck 12: Electron Arrangement in Atoms
[Free Registration/Login may be required to access all resource tools.] In the following online tutorail students will learn how to express the arrangement of electrons in atoms through electron configurations and Lewis valence electron...
Ducksters
Ducksters: Kids Science: Elements
Kid's learn about the science of chemical elements. Basic forms of matter made from a single type of atom.
Soft Schools
Soft Schools: Periodic Table
This interactive periodic table of elements allows students to click on each element, and read essential information about that element. Chemical elements are also listed alphabetically for quick reference.
BBC
Bbc: Gcse Bitesize: What Does the Periodic Table Tell Us About the Elements?
The number of protons in the atom of an element determines its place in the Periodic Table. The number of electrons in an atom is the same as the number of protons. These electrons are arranged in shells or 'energy levels' around the...
BBC
Bbc: Gcse Bitesize: Atoms, Elements and Compounds
This lesson focuses on atoms and elements including what they are, the chemical symbols for elements, and the placement of elements on the periodic table. A link to a test is provided.
Simon Fraser University
Chem1 Virtual Textbook: Chemical Composition
Chemical composition is a section of a larger overview on Chemistry, covering a variety of aspects. This section focuses on elements, atoms, compounds, and structure. Examples, formulas, and pictures are provided.
Science Education Resource Center at Carleton College
Serc: Atoms and Molecules
As part of the introduction to the Periodic Table of the Elements, students will be introduced to the idea of atoms, molecules, and chemical reactions.
Estrella Mountain Community College
Online Biology Book: Chemistry I: Atoms and Molecules
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.
CK-12 Foundation
Ck 12: Life Science: 2.1 Elements and Compounds
Learn how basic elements form molecules to support life.
Thomas Jefferson National Accelerator Facility
Jefferson Lab: Element Matching Game
Use this resource to practice memorizing the names for the chemical symbols. This interactive resource has a function that will check your answers.
Science Education Resource Center at Carleton College
Serc: The Mole in Chemistry: Determining the Number of Atoms in Everyday Items
Students explore the concept of the mole as a measure of quantity. They build spreadsheets that allow them to convert between moles, grams, and atomic mass units for given quantities of everyday items, elements, and simple chemical...
Ducksters
Ducksters: Chemistry for Kids: Chemical Bonding
Study chemical bonding in chemistry including atoms, valence electrons, ionic and covalent bonding, and how molecules are formed on this site!
Ducksters
Ducksters: Chemistry for Kids: Naming Chemical Compounds
Learn about naming chemical compounds in chemistry including conventions, the order of the elements, metals, non-metals, acids, and examples on naming on this site.
Ducksters
Ducksters: Chemistry for Kids: Chemical Reactions
A site discussing chemical reactions in chemistry including reaction rate, types of reactions, reagents, reactants, catalysts, and inhibitors.
Ducksters
Ducksters: Chemistry for Kids: Chemical Mixtures
Explore all about chemical mixtures on this site including solutions, alloys, suspensions, colloids, dissolving, examples, and facts.
Museum of Science
The Atom's Family: Mighty Molecules
In this activity, students construct models of molecules using marshmallows and gum drops.
Wikimedia
Wikipedia: Atomic Number
Wikipedia provides the definition of the term, "Atomic number," a term used in chemistry and physics to represent the number of protons in the nucleus of an atom.
BBC
Bbc: Gcse Bitesize: The Periodic Table
Elements in the same group in the periodic table have similar chemical properties. This is because their atoms have the same number of electrons in the highest occupied energy level. Group 1 elements are reactive metals called the alkali...