videodiscs

Lab partners Anna and Jack investigate the role of plants in human life, looking at them as providers of oxygen, food, shelter, clothing, and medicine, and discussing how human activities have negatively affected plant life.

Explains the historical development of the periodic table, explains why elements are given specific positions on the table, and includes a tour of the table, illustrating the similarities of blocks of elements.

Uses analysis from historians and National Park Service rangers and quotations from eyewitnesses and reenactors to give a detailed account of four of the Civil War's most pivotal and bloody battles: Gettysburg, Antietam, Shiloh, and Cold Harbor.

Contains fourteen documentaries that examine some of history's greatest civilizations through a survey of the architectural and engineering marvels they left behind, looking at ancient Rome, the Byzantines, the British Empire, China, the Aztecs, Egypt, and others.

Uses computer-generated imagery to bring information gained from robotic probes and manned missions in space to life, illustrating black holes, comets, the births and deaths of solar systems and galaxies, and other aspects.

Presents the Standard Deviants approach to learning chemistry, focusing on percent composition.

Presents three stories by Robert McCloskey, including the title work about a family of mallard ducks that makes its home in Boston's Public Garden with the help of some non-feathered friends.

A dramatization of the 1957 Civil Rights stand at Little Rock Central High School, when Ernest Green, one of nine African-American students to integrate the all-white school, faced harassment in order to graduate.

Four boys in late-1950s Oregon walk the train tracks in search of a missing teen, hoping to become heroes in each other's and their hometown's eyes.

An up-close look at the use of adverbs, descriptive adjectives and determiners, such as definite and indefinite articles, demonstratives, and possessive nouns and pronouns.