This video segment adapted from NOVA explores the effects of the Glen Canyon Dam on the beaches, wildlife, and vegetation of the Colorado River.

Watch this short video clip to learn more about the rock layers of the Grand Canyon. This video discusses the two sandstone formations that comprise the uppermost part of the canyon. The video also discusses how the two sandstone layers were formed.

This lesson introduces the MRI Safety Grand Challenge question. Students are asked to write journal responses to the question and brainstorm what information they will need to answer the question. The ideas are shared with the class and recorded. Students then watch a video interview with a real life researcher to gain a professional perspective on MRI safety and brainstorm any additional ideas. The associated activity provides students the opportunity to visualize magnetic fields.

Students are introduced to the Robotics Peripheral Vision Grand Challenge question. They are asked to write journal responses to the question and brainstorm what information they require to answer the question. Their ideas are shared with the class and recorded. Then, students share their ideas with each other and brainstorm any additional ideas. Next, students draw a basis for the average peripheral vision of humans and then compare that range to the range of two different focal lengths in a camera. Through the associated activity provides, students see the differences between human and computer vision.

In this biology lab extension, student will have already collected leaves from the playground and surrounding school areas and sorted them into categories according to leaf properties. Students will use the leave classifications/ sorts to graph the properties of the leaves.

The Greater Yellowstone Science Learning Center is a portal to information about the natural and cultural resources of Yellowstone and Grand Teton (including John D. Rockefeller, Jr. Memorial Parkway) national parks and Bighorn Canyon National Recreation Area. By reporting on what has been learned from research and monitoring in these parks, we hope to increase public awareness of new findings and encourage studies that will help guide park management decisions. The National Park Service has set up Research Learning Centers as public-private partnerships that promote the sharing of scientific knowledge about the parks.

Learn about a study in which participants discovered contaminants in their homes, and how green chemistry may provide alternatives to such everyday toxins, in this video adapted from Contaminated Without Consent.

Green Space Investigation will be the opening activity for an introductory unit in Biology. Purpose of the activity is to model scientific thinking and experience how science is conducted using a confined green space adjacent to a classroom. The activity can be conducted with minimal material needs or can develop into a more elaborate investigation.

Research has changed our concepts of brain organization and provided dramatic evidence showing far greater similarities between brains of birds and brains of all mammals. Harvey Karten explores what goes on inside a birdŐs brain. Learn how brains of birds compare to those of humans and other mammals and find out what the study of birdŐs brains can teach us about the nature and origins of human brains. (57 minutes)

UCSD Cognitive scientist Joan Stiles reveals the latest understandings about the intricate relationship between biology and external influences in the development of the brain. (58 minutes)

Join UCSD's Larry Squire in a fascinating presentation of recent research about memory systems in humans and other mammals. (58 minutes)

We make thousands of decisions every day: where to go, what to do, when to do it. Join UCSD's William Kristan and discover how neurons, synapses, and chemical input play out in decision making. (57 minutes)

Neuroscientist Patricia Churchland explores how the human mind functions in guiding one's decisions. (55 minutes)

In this edition of "Grey Matters," Aniruddh Patel, of the Neurosciences Institute, discusses what music can teach us about the brain, and what brain science, in turn, can reveal about music. (51 minutes)

Join Stuart Lipton of The Burnham Institute and discover important anti-aging strategies, the latest drugs for degenerative disorders such as AlzheimerŐs disease and the potential use of human stem cells for neurological conditions. (57 minutes)

This expository article, written for students in grades 4-5, explains why ice floats and how this is essential to life on earth. Modified versions are available for younger students.

This activity is an indoor lab investigation where students compare and contrast different growing environments for a lima bean seed and discover the optimal conditions needed for growth.

This collection of six images captures the magnificence of human development -- the transformation from baby to woman.

In this lesson, the students will investigate what types of plants and insects they could eat to survive in the Amazon. They will research various plants and/or insects and identify characteristics that make them edible or useful for the trip. The students will create posters and present their findings to the class.

This video segment explores how one marine biologist used the scientific process to discover how whales hear.