In this video segment adapted from NOVA, a fossil found among the Grand Canyon's rock layers reveals the existence of a shallow sea that once covered most of western North America.
Photos, illustrations, 3D graphs and animations are part of this investigation into the geology and landforms of the Grand Canyon. Learn detailed information on the formation of the canyon, the rock layers, and the prehistoric life that existed at the time each layer was created.
This video segment adapted from NOVA uses animation to present the theory of how the Grand Canyon was formed and features rare footage of a phenomenon known as debris flow.
This video segment adapted from NOVA features the youngest rock formations in the Grand Canyon, lava dams, and how they are subject to the eroding power of water.
This brief video segment adapted from NOVA uses illustrations and the well-preserved footprints of a small reptile to portray the history of the Grand Canyon's top two rock layers.
First let's review position, velocity and acceleration vs. time curves. This video [2:56] focuses on developing mathematical formulas to do three things: Describe how particles move, how particles collide, and track particles forward through time.
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
This video lecture will use the Universal Law of Gravitation to calculate the acceleration due to gravity at the surface of the Earth. Video will then calculate the space station's acceleration due to gravity. [10:12]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Do you know how much you are accelerating down toward the center of Earth? This video will explore how to use Newton's Law of Gravitation to figure it out. [8:37]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
A video tutorial explaining the physics behind the gravitational force of an object at rest. [3:46]
This site defines and explains the concept of gravitational potential energy. Uses many equations and graphics to illustrate the idea. Provides an online computational practice set with immediate feedback.
This lesson introduces the concept of gravitational potential energy. [4:26]
This lesson gives a mathematical relationship for gravitational potential energy. [7:05]
In this video segment, learn about the history of our understanding of the expansion of the universe.
In this video segment from NOVA scienceNOW, learn about the effects of gravity as astrophysicist Neil deGrasse Tyson falls through a virtual hole through Earth's center. [1:45]
Video explores the two different ways of viewing g as the value of Earth's gravitational field near the surface rather than the acceleration due to gravity near Earth's surface for an object in freefall. [7:30]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Two gray foxes joined the Museum’s menagerie of live native Ohio animals in the reimagined Ralph Perkins II Wildlife Center & Woods Garden—Presented by KeyBank, which opened Labor Day weekend 2016. Gray foxes are one of the only canines that can climb trees—a fact that inspired the young foxes’ names. Buckeye and Ash were born in captivity and hand-raised in Minnesota. In the years since the state-of-the-art wildlife center opened, the pair have bonded with their caregivers and become familiar with their homes. Worksheet available for grades 1-3.
In this lesson, students will investigate various environments of the Great Lakes, including an exploration of flora and fauna unique to the region.
In this lesson, students will become familiar with some of the unique meteorology of the Great Lakes region in terms of weather and climate.
In this lesson, students will model how a watershed works to understand how the Great Lakes basin is a large watershed region.
Nikos is cleaning up and organizing in his family's theater. He finds out that different movements need different motions; sometimes a push, and sometimes a pull. Help him figure out which force to use.