In this video Paul Andersen explains how energy is used in chemical processes and everyday life. Students should understand that energy is neither created or destroyed but is converted. Most of the energy is delivered to our planet...

Paul Andersen details the first 7 of 13 labs in the AP Biology Curriculum. The following topics are all covered: Artificial Selection, Hardy-Weinberg Equilibrium, Comparing DNA using BLAST, Diffusion and Osmosis, Photosynthesis,...

In this video Paul Andersen describes the relationship between energy and forces. When objects are directly touching electromagnetic forces can result in forces and energy exchange. When objects are not directly touching fields;...

Paul Andersen reviews the major concepts within the fifth unit of the new AP Biology framework. He starts with a description of both DNA and RNA. He explains how DNA is copied during the S phase of mitosis. He explains how...

In this video Paul Andersen shows conceptual thinking in a mini-lesson on molecular-level structures.


TERMS
Molecular-level structures - locations of atoms in
a molecule
Function - an activity or purp
ose for a...

In this video Paul Andersen shows conceptual thinking in a mini-lesson on structure and function.


TERMS
Structure - parts in a mater
ial object
Function - an activity or purp
ose for a thing
Shape - extern
al form of...

In this video Paul Andersen explains the importance of models and visual representations in an AP Biology class. Science practices are overarching skills and knowledge required to be successful in an AP Biology classroom. Models for...

In this video Paul Andersen explains hot the force-time graph can be used to determine the impulse of an object. Since the impulse and the change in momentum are equivalent the graph can also be used to determine the change in momentum...

We have lots in common with our closest primate relatives. But comparatively, humans seem a bit... underdressed. Instead of thick fur covering our bodies, many of us mainly have hair on top of our heads— and a few other places. So, how...

In this video Paul Andersen explains how information is processed in in animals. He starts by describing the different forms of information and how they are received by receptors. He explains how information is received by the brain...

Today, about one-tenth of the world's population are southpaws. Why are such a small proportion of people left-handed -- and why does the trait exist in the first place? Daniel M. Abrams investigates how the uneven ratio of lefties and...

Computers can beat us in board games, transcribe speech, and instantly identify almost any object. But will future robots go further by learning to figure out what we're feeling? Kostas Karpouzis imagines a future where machines and the...

In this video Paul Andersen shows conceptual thinking in a mini-lesson on complex structures.


TERMS
Complex structures - structures that consist of many different and conne
cted parts
System - a set of components...

Paul Andersen explains how investigations are used by scientists to answer questions and by engineers to test designs. He delineates be investigative and observational science. He demonstrates the formation of a good question the...

Flatulence is a daily phenomenon. In fact, most human beings pass gas 10-20 times a day (yes, that includes you). Where does your bodily gas come from? Purna Kashyap takes us on a journey into the intestines, shedding light on how gas is...

A mini-lesson on patterns at varying scale.

How is it that Beethoven, who is celebrated as one of the most significant composers of all time, wrote many of his most beloved songs while going deaf? The answer lies in the math behind his music. Natalya St. Clair employs the...

In this video Paul Andersen shows conceptual thinking in a mini-lesson on scale and perspective.


TERMS
Phenomena - observable events in the natural world (require exp
lanations)
Time - an irreversible s
eries of...

In this video Paul Andersen explains how inertial mass is defined and measured. When a force is applied to an object or a system it will accelerate. Using Newton's Second Law of Motion (F=ma) you can calculate the inertial mass.

Steroids. They've caused global scandals. They're banned in most athletic competitions. Yet the same properties that help elite athletes and bodybuilders improve performance also make steroids valuable for treating many illnesses and...

In this video Paul Andersen shows conceptual thinking in a mini-lesson on matter and matter transport.


TERMS
Matter - physical
substances
System - a set of components (e.g. things) w
orking together
Transport - to...

in this video Paul Andersen shows conceptual thinking in a mini-lesson on INSERTTITLEHERE.


TERMS
Complex structures - structures that consist of many different and conne
cted parts
Microscopic structures - structures...

In this video Paul Andersen shows conceptual thinking in a mini-lesson on scale mechanisms within complex systems.

T
ERMS:
Cause and effect relationships - one event that gives rise to ano
ther event
Complex systems - a...

Although one third of the population suffers from motion sickness, scientists aren't exactly sure what causes it. Like the common cold, it's a seemingly simple problem that's still without a cure. And if you think it's bad on a long...