What is the Nature of Science?

Determining whether or not something is living can be more difficult than it seems. Put your young scientists to work defining their own criteria to identify life, then work with three samples to see if they are alive or not. 

Some say cooking is an art—and a science! Scholars scope out the savory subject of molecular gastronomy with a series of related activities. The teacher's guide contains printable worksheets and helpful tips for implementing the lesson.

Rotating through five stations, evolutionary biologists explore the question of how changes in DNA facilitate the changes in a population over time. High-quality, colorful cards of animals, skeletons, skulls, and DNA sequences can all be...

Hard to describe, even harder to grasp in some cases, what is chemistry? According to participants in an impromptu video, it's more about ... love? See the perspective of all walks of life when the narrator pops the question in an...

The first lesson in the five-part What is Life? series addresses the definition of life. It discusses characteristics, why the concept of carbon-based life is important, and the macro-molecules of life on Earth. 

Measurements of Australia's coast line range from 12,500 km long to 25,700 km long. What causes the difference in these measurements? The video discusses the coastline paradox, fractals, and the importance of the size of a measuring stick.

Examine exactly what is meant by natural selection, as well as how it works in nature and through the assistance of humans. Presented with fun graphics and simple narration, the complex topic of natural selection is clearly explained in...

Learn about the basics of the mechanism of evolution and the importance of natural selection, and examine evidence showing that we are seeing evolution playing out in every organism we encounter. In an engaging and easy-to-follow video,...

Can questions of morality, good and evil, right and wrong, and/or what is worth living and dying for...be answered by science? Author Sam Harris presents a strong case for the need for a universal conception of human values. He argues...

After watching a short film about the anatomy and physiology of fungi, discuss with your class the seven provided Think questions, or make up your own. The animation is in the style of colorful artistic drawings and text that appears in...