A slideshow looking at the contributions of scientists over time to our understanding of atomic theory. Looks at models of the atom developed by Democritus, John Dalton, J.J. Thomson, Ernest Rutherford, Niels Bohr, and James Chadwick, as...

The structure of the atom is uncovered in this interactive tutorial. Discover the different particles of the atom and learn their charges and how they can affect the overall atom.

As part of the introduction to the Periodic Table of the Elements, learners will be introduced to the idea of atoms, molecules, and chemical reactions.

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...

Explains the basics of atomic structure, from simple definitions to information about quantum theory. Accurate and helpful basics whether or not you need the more advanced information.

Students will play the "Heavy Element" game to learn about star cycle and the formation of heavy elements in the universe.

Interactive concept animation shows the atomic number, weight, and structure of the first eleven elements of the Periodic Table of Elements.

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.

This reading is an introduction to the great variety of steroids and their many different uses.

Kid's learn about the science of chemical elements. Basic forms of matter made from a single type of atom.

Students will use bags of beads with known quantities of electrons, neutrons and protons to identify the element that they represent.

Fractions can help one understand the basic properties of elements.

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.

Introduces learners to atomic models of the past and present, focusing on the orbital model and an explanation of its basis. Learners then have the opportunity to "make an atom" and contrast it with an ion, followed by an isotope. The...

[Free Registration/Login may be required to access all resource tools.] Atoms and how they are related to elements, and the particles that make up atoms.

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

[Free Registration/Login may be required to access all resource tools.] Atoms and how they are related to elements, and the particles that make up atoms.

Acting as a subtopic of the General Chemistry Virtual Textbook's section on Atoms and the Periodic Table, this site discusses the properties of the atoms individually in relation to the main group elements of the Periodic Table.

Explore how changing the numbers of protons, neutrons, and electrons affect the type of atom.

Learn how basic elements form molecules to support life.

Fun and interesting information about elements. Learn about the periodic table, how they are distinguished, and the different families of elements.

An overview of the differences between the metal and non metal groups. Includes a lot of information on the periodic table and has a plethora of graphs.

[Free Registration/Login may be required to access all resource tools.] Students learn about atoms and atomic structure in this collection of instructional videos, grade-level texts, and quick assessments.

Atoms are very, very small. Atoms are so small that it is often said that there are as many atoms in a single grain of sand as there are grains of sand on all of the world's beaches - certainly a difficult thing to prove, but you get the...