This video from Thinkport introduces the seahorse, an unusual, endangered fish that has puzzled scientists who are attempting to save it.
In this video segment adapted from the College of Menominee Nation, tribal members share examples of how seasons are changing, and how these changes are affecting local plants.
This activity involves seed collection and exploration of common seeds.
This issue of the free online magazine, Beyond Penguins and Polar Bears, examines how elementary teachers can introduce the Arctic and Antarctica and use science, geography, literacy, and technology to help students compare and contrast these two dramatically different areas as well as their own home.
This video segment adapted from Northwest Indian College reveals how Native American life and knowledge is connected to natural cycles.
In this Nature video, watch a battle between a loggerhead turtle and a shark.
Learn about the reproductive system of the dogfish shark through a video gallery. Also read about the myth that sharks must constantly swim or they will die. PDF transcripts are available for each video.
In this video segment from Nature, see the value that sharks can have on the tourism industry in an area.
In this video segment from Nature, see the value that sharks can have on the tourism industry in an area. [1:41]
This article, written for students in grades 4-5, introduces the concept of albedo and describes the shrinking of Arctic sea ice. Modified versions are available for students in younger grades.
In this adapted ZOOM video segment, cast members calculate how much water they each use during a typical shower. They compare their results to their original predictions.
This resource provides biographical information about John Muir.
An interactive lecture that uses flash animations showing the researcher and their experiments that were used to develop the basic concepts in Mendelian genetics. Includes multiple choice questions students can answer in class.
In this field investigation, students will identify and determine the population size of snails in an aquatic environment.
This video segment adapted from NOVA/FRONTLINE looks at American energy consumption and the resulting production of greenhouse gases.
In this video from DragonflyTV, follow the investigation of Isaac and Anjali as they record, measure, and analyze data about how the Sun's position in the sky affects a solar-powered car's speed.
In this video segment adapted from ZOOM, cast members assemble a solar still and make fresh water from saltwater, demonstrating two steps of the water cycle, evaporation and condensation.
Spreadsheets Across the Curriculum/Geology of National Parks module. Students use the geometric mean and multiplicative standard deviation to examine the right-skewed distribution of nutrient concentrations in water-quality data at Mammoth Cave National Park.
In this video adapted from the University of Alaska, Anchorage, Alaska Native people of Chevak teach visitors about the beauty of Cup'ik culture and the spirit of the earth, sea, and animals.
Splash takes his pals to go see his friend, Lu, a fearless explorer in the deep. He has met Lu in his travels, and she has been an inspiration for Splash. Lu turns out to be a female football fish (the "Lu" stands for "bio-LU-minescent") who leads them on an adventure in the abyss. [12:26]