• 4D (6-8) #1.  All matter is made up of atoms, which are far too small to see directly through a microscope. The atoms of any element are alike but are different from atoms of other elements. Atoms may stick together in well-defined molecules or may be packed together in large arrays. Different arrangements of atoms into groups compose all substances.
• 4D (6-8) #5.  Scientific ideas about elements were borrowed from some Greek philosophers of 2,000 years earlier, who believed that everything was made from four basic substances: air, earth, fire, and water. It was the combinations of these "elements" in different proportions that gave other substances their observable properties. The Greeks were wrong about those four, but now over 100 different elements have been identified, some rare and some plentiful, out of which everything is made. Because most elements tend to combine with others, few elements are found in their pure form.
• 4D (6-8) #6.  There are groups of elements that have similar properties, including highly reactive metals, less-reactive metals, highly reactive nonmetals (such as chlorine, fluorine, and oxygen), and some almost completely nonreactive gases (such as helium and neon). An especially important kind of reaction between substances involves combination of oxygen with something elseÑas in burning or rusting. Some elements don't fit into any of the categories; among them are carbon and hydrogen, essential elements of living matter.
• 4D (9-12) #1.  Atoms are made of a positive nucleus surrounded by negative electrons. An atom's electron configuration, particularly the outermost electrons, determines how the atom can interact with other atoms. Atoms form bonds to other atoms by transferring or sharing electrons.

This interactive periodic table merges science and art to explore the elements in a visually striking way. The table is arranged in the traditional format, but each element is represented by a photograph or illustration relating to its origin or use. With a click, users can view extensive data and brief histories of 103 elements. Embedded animations for common elements complete the package.

• Physical Sciences K-8 Properties of Matter Unit
• Physics First Properties of Matter Unit
• Conceptual Physics Properties of Matter Unit
• Algebra-Based Physics Properties of Matter Unit
• AP/Calculus-Based Physics Properties of Matter Unit

This interactive periodic table merges science and art to explore the elements in a unique and visually striking way. It's arranged in the traditional format, but each element is represented by a photograph or illustration relating to its origin or use. With a click, users can view extensive data and brief histories of 103 elements. Animations have also been embedded for some of the more common elements

• Physical Sciences K-8 Elements and the Periodic Table Unit
• Physics First Elements and the Periodic Table Unit
• Conceptual Physics Elements and the Periodic Table Unit
• Algebra-Based Physics Elements and the Periodic Table Unit
• AP/Calculus-Based Physics Elements and the Periodic Table Unit