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

In this video segment from Cyberchase, a plant expert shows Bianca the patterns and symmetry found in nature.

This video segment adapted from the NOW-RAMP 2002 Expedition documents a research expedition to Pearl and Hermes Atoll in Hawai`i. Watch as biologists assess the bird and plant populations and then work to eradicate invasive species.

WNBA athletes discuss attendance at basketball games in terms of percentages in this video segment from TV 411.

In this video segment from Cyberchase, Music of the Spheres plays a song using the correct beats and patterns, which helps to restore balance and harmony at Mount Olympus.

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.

In this video segment from Evolution: "Extinction!", geologist Peter Ward discusses evidence for a Permian-Triassic mass extinction.

This video segment from Nature profiles a small business in which homing pigeons play a central role.

Watch the rubber bands vibrate on homemade guitars in this video segment adapted from ZOOM as cast members talk about pitch and demonstrate how to make a cereal box instrument.

This video segment, adapted from ZOOM, explores the different sounds that a simple drinking straw can produce when you cut the straw and blow into it.

This video segment, adapted from ZOOM, demonstrates how to use a drinking straw and a bottle full of water to make low- and high-pitched sounds.

This Cyberchase video features Bianca who uses Venn Diagrams to make a pizza that satisfies the topping preferences of her friends.

Learn about NASA’s Kepler mission and how scientists search for planets orbiting stars outside our solar system in this video segment adapted from NOVA.

In this media-rich, self-paced lesson, students explore the industries that produce and rely on advanced technology and assess how their goals and interests may make them well suited for a career in this cutting-edge sector.

This video segment adapted from A Science Odyssey uses animation and archival footage to provide an overview of the theory of plate tectonics.

This video segment adapted from NOVA uses animation to show the relationship between the movement of a tectonic plate and whether volcanoes on the Hawaiian Islands are active or dormant.

Students learn about and practice graphing, plotting points, drawing line segments, and finding the coordinates of points of intersection.

This KET animation illustrates positive and negative measurement on a straight line and on a flat plane using a point of origin.

In this lesson designed to enhance literacy skills, students learn about population sampling by watching how a Native American tribe measures the number of fish in their lake.