This video segment from NOVA: "The Killer's Trail" investigates the potential for DNA evidence to solve murder cases, even those from the distant past.

A site that has interesting information on forensics and interactive activities for kids to play. The student will learn investigative techniques that will enable them to better understand the science of forensics. The use will explore new technology related to anthropology and forensics.

This video segment from Nature describes how glaciers eroded the bedrock of IrelandŒë_í_Œ_ landscape.

This video segment adapted from NOVA shows how scientists use the fossil record to trace when early human ancestors and related species began walking on two legs instead of four, and to determine whether they were more apelike or human in appearance.

This video segment from Between the Lions shows the practice of sounding out the word rocket part by part, blending sounds together to form a word.

In this video segment adapted from American Experience: "Freedom Riders," watch newsreel footage, archival photos, and interviews to explore how Freedom Riders made efforts to end the segregation of African Americans in the Southern United States. Even after the U.S. Supreme Court had ruled that the segregation of black and white riders on interstate buses was unconstitutional, Southern states continued to enforce local segregation laws. In response, members of both races decided to force the issue and challenge illegal segregation by riding together in buses headed to the South.

In this video segment adapted from American Experience: "Freedom Riders," view newsreel footage, archival photos, and interviews to explore how the Freedom Rides of 1961 brought about the end of racial segregation in interstate transportation. The Freedom Riders, aware that their nonviolent protest would elicit violence from some Southerners attempting to enforce local segregation laws, were determined to continue their protest even in the face of possible arrest. A series of events involving the U.S. attorney general, a U.S. senator, the governor of Mississippi, and a federal agency put an end to discriminatory practices in public transportation. This initial, unambiguous victory for the Civil Rights Movement paved the way for further progress.

Fannie Lou Hamer was sterilized without her knowledge or consent in 1961. She would become a leader of the Mississippi Civil Rights movement. Learn more with this biography from American Experience: "Freedom Summer." This resource is part of the American Experience Collection.

In addition to helping black residents register to vote and establishing the Mississippi Freedom Democratic Party, education was another important goal of Freedom Summer. Years of substandard and segregated schools and libraries had contributed to high rates of illiteracy (which, in turn, had led to disenfranchisement) and a lack of knowledge about black history and culture. Volunteers teaching in the Freedom Schools found that adults as well as children were eager to learn. The experience gave many black people newfound hope that things were about to change.

In this interactive activity adapted from the University of Utah's ASPIRE Lab, investigate frequency in terms of trampoline jumps, pendulum swings, and electromagnetic waves.

Prom night brings an intense moment of connection for two teens, unleashing a flood of texts and social media posts. Things start to move rapidly. How much does this relationship really mean? “Friday,” written by Hannah Schmidt of Fern Creek High School in Louisville, considers the role of electronic communication in the confusion of teen romance. It was among the seven short plays produced by the 2017 New Voices Young Playwrights Festival at Actors Theatre of Louisville.

Sensitive: This resource contains material that may be sensitive for some students. Teachers should exercise discretion in evaluating whether this resource is suitable for their class.

The CyberSquad tries to figure out how HackerŒë_í_Œ_ cyberfrog moves when its various buttons are pressed, in this video from Cyberchase.

In this video from Cyberchase, the CyberSquad must figure out the new input/output pattern on HackerŒë_í_Œ_ larger cyberfrog.

David Huffman is a Bay Area artist who heavily uses basketballs and astronauts as symbols of African Americans' cultural trauma and historical homelessness. He uses these two specifically because they serve as metaphors for self-discovery in a place that has been previously hostile. Basketball is a sport that connects cultural divides, and the astronaut suit protects those who are venturing into dangerous places in order to see things they have never seen before.

"Weird Al" Yankovic might be the first person to come to mind when you think of parody music, but did you know that composers like Bach, Mozart, and Satie have been parodying each other's work for centuries?

Nahre and LA explore the history of parody music from the 1700s to the YouTube parodies of today. Scott Dikkers, founding editor of The Onion, explains why humans love parody so much and why it's so hilarious. Nahre and LA compose a dance hit to the tune of the Barney theme song.

Students explore the relationship between input and output values and learn to use algebraic expressions and equations.

Watching plants grow is like watching paint dry: It happens so slowly that the changes are imperceptible from one moment to the next -- and yet the end results are dramatic. This video segment shows just how amazing plant development can be by depicting various phases of the process using time-lapse photography. Footage from NOVA: "The Shape of Things."

In this video excerpt from NOVA, find out how the discovery of a gene defect has led to the development of a new drug to treat patients with cystic fibrosis.

This video segment describes the basics of the circulatory system: how the heart pumps the blood that carries oxygen and nutrients throughout the body.