For this geometry game, students must guide Transtar, an alien spaceship, across space by applying transformations to it. At the same time, there are dangers to avoid and the number of moves and tries are limited.

Easter Island has been a hotbed for speculation for many years. Contrary to the popular belief that aliens are responsible for the island's mysterious statues, this website presents the true story behind the statues.

Determine the speed of a sound wave through an alien atmosphere. You must also find the frequency of the wave source and the wavelength of the wave.

A game where students must create a stable structure for a friendly alien to use to reach its spacecraft. Students manipulate the blocks to learn that wider bases, symmetrical structures, and creating a lower center of mass result in a...

Multiplayer math game where alien spaceships race by rounding whole numbers to the nearest 10's place value.

For this lesson, students write a descriptive essay about an historical event as seen through the eyes of an alien from a different planet and time. The lesson encourages the use of colorful and exciting adjectives, adverbs, and verbs in...

Help the alien spaceship move cows into corrals by counting, adding, and subtracting. This activity helps children learn grouping, tally marks, and place value.

Your students will love wrapping up a solar system unit with this activity! Children make their own "Travel brochure," about earth, trying to encourage extraterrestrials to visit, by comparing our planet to theirs. This lesson plan also...

Read about the foreign policy problems the United States was having at the beginning of the Adams administration. See what led up the the passage of the Sedition Act and some ramifications of it, and the Kentucky and Virginia Resolutions...

James Thomson Callender was a little-known journalist whose writings made a big splash in the new American nation. Read about his attacks on political figures, and see what the Sedition Act had to do with his conviction of a crime.

In this Curriculum Unit, students will consider "The Sedition Act: Certain Crimes Against the United States" in 5 Lessons. The unit also includes worksheets and other student materials that can be found under the resource tab.

Carl Sagan discusses the incomprehensible vastness of the universe, the wonder of our own place in it all, and the science behind understanding the likelihood of the existence of extraterrestrial beings. [6:24]

This website contains an interactive timeline about the history of civil liberties at wartime.

This group seeks to stabilize the population growth in America by limiting immigration. They present their platform and possible solutions.

The French Revolution had political consequences in the United States. It forced us to adopt a clear foreign policy of neutrality and to pass legislation concerning immigration. Examine how Jefferson and Adams responded to the French...

In this investigation, students will explore whether or not there can be life outside of Earth by using planet hunting models to discover how scientists find new planets. They will perform simulated spectroscopic measurements to...

Anarchist Emma Goldman's graphic recollection of being deported from the United States during the red scare.

This Digital History site provides an informative overview of the Mexican American civil rights movement in America.

Washington retired in 1797, firmly declining to serve for more than eight years as the nation's head. His vice president, John Adams of Massachusetts, was elected the new president. Even before he entered the presidency, Adams had...

John Adams, early revolutionary and founding father, became the second president of the United States, only to face difficult foreign policy problems. Read about the XYZ Affair and the Federalists' preparation for war with France.

Seven Earth-sized planets have been observed by NASA's Spitzer Space Telescope around a tiny, nearby, ultra-cool dwarf star called TRAPPIST-1. Three of these planets are firmly in the habitable zone. In this video, NASA Scientists...

Massive vines that blanket the southern United States, climbing high as they uproot trees and swallow buildings. A ravenous snake that is capable of devouring an alligator. Rabbit populations that eat themselves into starvation. These...

As benign as it may look up close, the tiny seaweed Caulerpa taxifolia can wreak quite a bit of havoc on coastal ecosystems. This super algae is very adaptable; it also grows fast and spreads easily. Eric Noel Munoz gives the details of...

Olivier Guyon examines the possibility of finding other planets within astronomical numbers, some potentially rife with life. [6:21]