The Big "Why"

Does reality exist, or are we just a part of a larger virtual reality game someone is playing? A mind-bending video explains why we study cosmic history. It presents details about the start of the universe and more accurate predictions...

According to Space Time, many different studies prove the Big Bang happened. Part of a larger Cosmology playlist, it discusses the common arguments against and the newest science supporting the theory.

How can something as vast as the universe also be flat? Go beyond the Big Bang Theory using a video from an expansive physics playlist. Topics include the expansion and inflation of the universe, why opposite sides of the universe are...

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...

Genetic variation makes for stronger species, but for a mammalian species, humans are disturbingly closely related. Help your class explore human ancestry and genealogy using the 15th video in a 16-part series. It describes how we became...

According to Carl Sagan, we are all made of star particles. The second video in a series of 16 explains what happened after the big bang. It discusses cosmic background radiation, chemistry, galaxies, heavy elements, and the creation of...

A video highlights the contradictions in the Big Bang Theory and then discusses the need for a unifying theory of everything. Space Time presents an enlightening video as part of a larger series on Cosmology.

How can a bodily function be contagious? It is a question scientists and psychologists are still grappling with, but some of the leading hypotheses are presented here in the case of the contagious yawn. Most likely, it is something we...

In this online interactive reading comprehension worksheet, students respond to 25 multiple choice questions about Maya Angelou's I Know Why the Caged Bird Sings. Students may submit their answers to be scored.

Is gluten-free just a fad? What is gluten anyway, and why can't some of us process it? This is the perfect video to break down the anatomy of gluten and the various diseases and symptoms caused by the notorious protein, as well as to...