Theoretical physicists say that space and time are one thing created by the Big Bang. According to them, nothing happened in the time before the Big Bang because time did not exist. The first Crash Course-Big History video in a 16-part...

Can you imagine Washington DC and London as close neighbors occupying the same continent? Learners will be fascinated as they step back in time and discover the evolution of the earth's continents and oceans from 4.5 billion years ago to...

A dynamic, three-part feature explores what caused mass extinction of the dinosaurs at the end of the Cretaceous period. Computer animations, interviews, and on-site footage from around the world divulge evidence that it was the K-T...

Cartoon children compare the earth's age to timescales that we understand:a calendar year, the thickness of a book, the human lifespan. This smart film clip is definitely worth adding to your geologic timescale lesson! If you subscribe...

Explore a variety of science concepts in an interactive textbook created for middle school scholars. A lengthy table of contents takes readers to pages comprised of a subject overview, outline, and summary. Follow links further to find...

What are space dust bunnies and why are they important to us? Pupils explore space dust bunnies and how these particles helped form the planets. To understand the phenomenon, class members investigate the chemistry behind dust particles...

One important skill in analyzing scientific evidence is identifying facts versus opinions. Scholars identify pieces of evidence from the film The Day the Mesozoic Died and then discuss this evidence in small groups at the end of each act...

Scholars take off on an interactive spaceship to explore a historical timeline of the big bang theory. They learn about the evolution of mammals and humans, the formation of stars and planets, and the chemical composition of the early...

Can we really grasp how old we are? Part of a larger series, the humorous video demonstration shows how humans fit into the history of Earth and just how long ago life formed. Viewers explore a timeline that identifies major markers in...

Scientists know Earth's plates are constantly moving. One big question scientists have is, "When did they start moving?" PBS 6-8 Story of Earth series presents the research of one scientist trying to answer this question. Viewers learn...

Take it all the way back! Young scientists discover the changes that took place from the time Earth became solid to present day through an interesting interactive. The resource guides users through key events that have shaped our world...

Fungi are more than fun ... they're also functional! Most everyone knows they serve as Earth's decomposers, but ancient fungi took their job to a whole new level! An entertaining video from a large biology playlist examines the giant...

How did scientists unravel the mystery of an ancient beaver species? An engaging video from a well-written biology playlist discusses the discovery of strange spiral fossils found in Nebraska farm country. Junior paleontologists examine...

Some 4.565 billion candles would be needed for a birthday cake for Earth. Young scientists view a video to learn about historical attempts to determine the age of Earth. They see how advances in radioactive dating led to the currently...

Earth provides all of the systems needed for life, and how it does that is very complex. The video explains how Earth got here and what makes it special. It details its layers, the atmosphere, and human's place on the planet.

Planet Earth has come a long way from its dramatic beginnings. How long did all of these changes take? Science sleuths unravel the often-tangled timeline of our progress from single-celled sea creatures to world-traveling homo sapiens in...

Will all species follow the trilobite down the road to extinction? Discover the changing conditions on ancient Earth that led to both population explosions and mass extinctions with a video presentation. The narrator shows examples of...

How do you put 4.5 billion years into terms that young scholars can understand? Use your arms! Examine just how long our Earth has been around in a short video. The content includes the appearance of single-celled, then multicellular...

It's commonly known that over 70 percent of of the earth's surface is covered by water, but exactly where did it all come from? Join this short video as it travels back to the beginning of the universe in search of the origins of this...

Three eras of the current Phanerozoic geological eon are broken down for your pupils. Biological features of the Paleozoic, Mesozoic, and Cenozoic eras are listed, along with the possible causes of mass extinctions. Plenty of diagrams,...

Eight neat slides lead to the understanding of how geologists have determined Earth's age. Most of the slides are dedicated to explaining the absolute dating method of assessment. Color diagrams display radioactive isotopes and a graph...

What do people really know about the moon? Learn about three unsolved moon mysteries: the moon's past magnetic field, lunar sunrises, and what's really inside the moon's craters. An engaging video from the SciShow Space series connects...

How old is Earth and how do scientists know the answer? Throughout history, many researchers, scholars, and leaders answered this question with varying degrees of accuracy. The 20th episode of Crash Course History of Science introduces...

Interested Earth enthusiasts are introduced to ice ages. The 26,000-year cycle is charted and the eras named. Several slides are dedicated to the carbon cycle and how it contributes to the changes. The reasons for the cooling of the...