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Browse results: The Atomic Basis of the Properties of Matter

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RESOURCE	GRADE LEVEL	MEDIA TYPE
Quarks: Inside the Atom This video segment adapted from NOVA shows how the particle accelerator helped physicists find parts of the atom even smaller than protons and neutrons. Accessibility features: Caption	6-12	Video
Radiometric Dating In this video segment from A Science Odyssey, scientists explain how Earth's age was determined by examining the radioactive rocks in Earth's crust. Accessibility features: Caption	6-12	Video
Radon Radiation The biggest source of environmental radiation might be in your home. Find out more in this video segment adapted from FRONTLINE. Accessibility features: Caption	6-12	Video
Smart Bridges In this video segment adapted from NOVA scienceNOW, learn about engineering innovations that could help detect a bridge's structural weaknesses before they become dangerous. Accessibility features: Caption	6-12	Video
String Theory: Gravity - The Odd Man Out This video segment from NOVA describes the discovery in the 1930s of two forces in addition to electromagnetism: the strong nuclear force and the weak nuclear force. Accessibility features: Caption	9-12	Video
Synthesizing an Alkaloid In this video segment, adapted from NOVA, learn how chemist Percy Julian revolutionized chemistry by synthesizing the alkaloid physostigmine from scratch—the first total synthesis of a chemical compound. Accessibility features: Caption	9-12	Video
Synthesizing a Steroid This video segment, adapted from NOVA, tells the story of chemist Percy Julian's quest to make progesterone from a plant steroid, an important medical advancement of the 1940s. Accessibility features: Caption	9-12	Video
What Holds a Molecule Together? This video/animation illustrates that a molecule is a small group of atoms that is stuck or bonded together with electrons. Dr. Chris Muhlstein introduces the idea of three primary types of bonds: ionic, covalent and metallic; animations show how they form at the atomic level, and give everyday examples Accessibility features: Caption	9-12	Video
What is a Molecule? This video/animation shows that a molecule of water is made up of oxygen and hydrogen atoms. When oxygen and hydrogen atoms exist alone, their properties are different from the properties they have when they are chemically combined to form a water molecule Accessibility features: Caption	6-12	Video