The Envelope Please

Engage young biologists in exploring the mysteries of life with this collection of hands-on activities. Enlisting the help of numerous digital resources, students get an up-close look at the structure of plant and animal...

What do brown bears in Alaska's Katmai National Park need to survive? Pupils explore the unique habitats, diet, and survival needs of this animal. They predict the consequences of removing any integral part of the bear's survival,...

Learners examine healthy food choices and the benefits of growing their own food for consumption. They read the story "Favorite Things" and illustrate 5 favorite things. Students discuss types of foods that are healthy choices and why it...

Like something from a low-budget horror movie, terror birds ruled the roost in South America millions of years ago. Things didn't go as well when they headed north! With an intriguing video, biology scholars explore the massive migration...

How did the vast Roman society contribute to science? See the wonders of the Appian Way all while examining the Roman thought process during video six in the History of Science series. The narrator compares the Roman view of doing...

The human body produces about 1.7 liters of saliva a day to aid in digestion. The digestive systems of different organisms are examined in a video that follows the digestive path, beginning with acids, moves to the importance of...

Did you know that coelacanths, a living chordate fossil, can live at an ocean depth of 2,300 feet, grow to be 6.5 feet long, and weigh almost 200 pounds? The narrator of a video series on evolution continues his way up the evolutionary...

A slideshow that covers the all-important details related to basic human circulation. The reasoning for exchange of material methods is presented and then labeled diagrams of the main human transfer systems are shown, along with...

Students investigate the June 2004 Transit of Venus, write a screen play, and produce a movie or animation of the transit including a narration. The difference between storytelling and storyboarding is made clear in this instructional...

Students classify Archaeopteryx using pictures of actual fossils and scientist representations of how the animal might have looked. They compare Archaeopteryx's characteristics to those of the five extant vertebrate groups to...