This short video covers simple harmonic motion, focusing on pendulums. It is the fifth in a series of six videos that make for a nice Physics review.

Explaining the hows and whys of exponent laws in an approachable and non-intimidating manner is no small task. But here, it is accomplished with humor and real-life examples. Set up with scenarios from biology, the role of exponents and...

Eukaryotes—were we born from an act of predation that backfired? Ponder this and other questions of evolution with a video from a well-written biology playlist. Topics include the origins of mitochondria and chloroplasts, unusual...

How do organisms end up with such a wide variety of traits? It's in their genes! Kick off your inherited traits lesson using a brief video that covers alleles and genes. The narrator describes heterozygous and homozygous genotypes, how...