84 resources and 4 collections matched your query.
Library of 3383 accessible STEM media resources.
Showing resources 21 to 40 of 84
Select a resource below to get more information and link to download this resource.
Oxygen is the chemical element with the symbol O and atomic number 8. It is a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds.After hydrogen and helium, oxygen is the third-most abundant element in the universe by mass.
(Source: Library Lyna)
Part of a series that features a wide variety of video footage, photographs, diagrams and colorful, animated graphics and labels. Begins with a simple definition of the term and concludes with a critical thinking question. For this particular video, students will focus on Pangaea. Part of the Science Video Vocab Series.
(Source: DCMP)
Students will explore the physical and chemical properties of matter. Special attention is paid to the method by which matter is measured. Length, mass, weight and volume of common everyday matter is discussed. Other topics covered include the metric system, meter, kilogram, gram, liter, water displacement, and density.
This video discusses the principle of force and the application of Newton's three laws of motion. Through the use of real-world examples, students will witness the effect of friction on force. Other topics covered include inertia, weight, mass, gravity, and the law of universal gravitation.
There is a massive southern ocean current almost two miles below the ocean's surface. Recent measurements found it’s the strongest current ever recorded at this depth and transports 40 times as much water as the Amazon River. The current carries dense, oxygen-rich water and has a direct influence on temperatures around the world. Part of the "News of the Day" series.
In this episode, host Emily Graslie discusses the philosophy and moral implications of de-extinction. Scientists are exploring de-extinction as a possible mass extinction looms, but who decides which species are brought back to life? Part of "The Brain Scoop" series.
Part of the "Chemistry in Action" series. Chemicals interacting with each other are one of the most fascinating topics in chemistry. Fireworks, burning flares, and rusting all illustrate chemical reactions. Describes the different types of reactions as well as the process of balancing chemical equations. Introduces the following terminology: chemical equations, Law of Conservation of Mass, decomposition and synthesis reactions, replacement reactions, and reaction rates.
Scientist are concerned about the decreasing mass of the world's glaciers. Due to numerous environmental factors, glaciers that were once abundant in the Northern regions are now half of their original size. Climate change has become a very real and dangerous impact for the planet. Part of the "Glacier Series."
Bill Nye goes deep inside Jupiter’s mysterious Great Red Spot. First discovered over three centuries ago, this super storm is a gigantic, swirling mass of gas and clouds that is bigger than three Earths combined. NASA’s “Juno” mission hopes to reveal many of the secrets of the Great Red Spot. Part of the “Why With Nye” series.
Gravity and erosion are major factors in changing the shape of the surface of Earth. The different types of erosion and the effect of gravity on objects is discussed in this video. Other topics covered include folding, faulting, deposition, creep, mass movement, landslide, surface runoff, alluvial fan, delta, stream erosion, beach erosion, ice erosion, wind erosion, dune, glaciers, and glacial deposits.
Host Emily Graslie discusses a new scientific theory about mammalian diversification. According to this new theory, placental mammals evolved before a major mass extinction event, which occurred sixty-five million years ago. However, there is no fossil record to prove the new theory, but scientists around the world used genetic material to form their theory. Part of "The Brain Scoop" series.
What is an atom? It is the smallest particle of an element, and everything is made up of atoms. They consist of three basic particles: protons, electrons, and neutrons. The scientific community has experienced significant breakthroughs which have contributed to the understanding of atoms. Other topics covered include atomic number, atomic mass, Bohr model, electron cloud, and isotope.
Is a sixth mass extinction on the horizon? Dr. Anthony Barnosky and Kaitlin Maguire travel to the John Day Fossil Beds National Monument to find, collect, and date fossils. They have determined that the rate at which animals are going extinct today is much faster than normal.
Dark matter is a scientific mystery. But physicists like Dan McKinsey theorize it must exist because without it, the universe would look quite different. With support from the National Science Foundation, McKinsey and a team of scientists from across the U.S. and Europe are hard at work on the Large Underground Xenon, or LUX, experiment. Nearly a mile straight down an old mine shaft at the Sanford Underground Research Facility in Lead, South Dakota, the team searches for the existence of one possible type of dark matter called weakly interacting massive particles, or WIMPs. Part of the National Science Foundation Series “Science Nation.”
The Standard Deviants explore the concept of work. Students learn how to find an object's kinetic energy and explore the law of universal gravitation. Other topics covered include potential energy, the work-energy principle, and the universal gravitation constant. Part of the "Standard Deviants School: Physics" series.
Communication between people and cultures initially stemmed from trade and commerce. With Guttenberg's invention of the printing press, information was available to people beyond the elite and wealthy for the first time. Trade drew explorers out into the oceans, and mapmakers outlined their treacherous journeys. These basic maps are what led Columbus to believe he could reach the East by sailing west. Instead he found America, and established trade routes between America and Europe.
Dwarf planets are a lot like regular planets. They both have enough mass and gravity to be nearly round, and they both travel through space in a path around the Sun. However, the path of the dwarf planet is full of objects like asteroids. A regular planet has a clear path around the sun.
Examines the science of travelling beyond our solar system with the latest developments from NASA. Looks at what technology and research steps are being taken that might enable us someday to go visit other planets. Reports on the Phoenix Lights, the most recent mass UFO sighting, as presented through witness accounts. Also includes commentary from skeptical analysts to represent both sides in this highly debated topic.
Today, people send emails, text messages, and status updates instantaneously. But not so long ago, messages were handwritten and travelled no faster than people could carry them. With the invention of the telegraph and then the telephone, instant communication was born. Radio and television created an industry for mass entertainment that continues to grow, and the computer age changed how data is crunched. With the invention of the internet in the 1980s, the world of communication has truly shrunk.
In a gas turbine, the linear motion of gas causes rotors to spin, ultimately creating electricity. The forward rotating blades pump air under high pressure into the combustion chamber where natural gas ignites on contact with the air. At 1,500 degrees Celsius, the stream of gas rushes past the rear turbine blades, causing the entire rotor to spin. A generator transforms that rotational energy into electricity.
Showing collections 1 to 4 of 4
A collection of Chemistry related resources
A collection containing 67 resources, curated by Benetech
A collection of simulations from PhET.
A collection containing 15 resources, curated by Charles LaPierre
3D models and images of the entire periodic table of elements
A collection containing 118 resources, curated by Library Lyna
Biology related concepts
A collection containing 59 resources, curated by Benetech
