Curious Crossbreeds

It's not often that you come across a clever laboratory activity that is both imaginative and comprehensive! Using M&M's and Reese's peanut butter candies to represent two different clam species, young biologists test for "relative...

Meteorologists view an animated video by the Environmental Protection Agency to learn how the carbon cycle works, and then move into groups to analyze and graph actual data of the atmospheric carbon dioxide concentration from Hawaii's...

There's nothing regular about them—irregular verbs turn out to be the most common verbs in the English language. Through an analysis of data, learners discover that Zipf's Law describes the patterns of word usage. 

Students create a computer database to discover relationships present in the Animal Kingdom. In this classification instructional activity, students enter data into a Microsoft Access database. They answer questions on a worksheet and...

A mystery canine was shot and killed near Yellowstone National Park in the early '90s. Genetics whizzes explain how they might go about identifying whether the animal was a true grey wolf or a hybrid. A drawing of the animal's DNA bands...

The mind-bending concept of space-time is further discussed by two cartoon scientists in this second of three animated films. Assign each part and the accompanying Think questions as homework or as an enrichment when working on motion...

Byzantine princess Anna Komnene took the motto, “If you want it done right, do it yourself,” to heart, penning a 500-page history of her father’s reign. Her tales of Byzantine Emperor Alexios’s reign attempt to balance truth with family...

A football tackle is just a transfer of momentum, Learners discover the principles of Newton's Third Law by analyzing football tackling. The third lesson in a series of 10 videos shows how the mass and velocity of a defensive player lead...

Many scientists have worked on discovering what genes are "turned on" within cells at different stages of development. DNA arrays and gene chips are techniques that have been developed. This article will help you understand these...

Students classify animals based on their physical characteristics and eating habits.  In this animal identification lesson plan, students investigate the life forms shown on a Parisian ceramic basin, and discover ecosystem the...