The most popular AP science exam, Biology, also maintains the highest passing rate. The College Board releases old test questions covering trichomes and much more, along with statistics and scoring guidelines to help scholars study for...

When a minnow eats a piece of plastic, that garbage often tracks through multiple animals, causing harm to each as it passes through the food chain. Scholars learn about food chains, food webs, and energy pyramids with a presentation. It...

What happens when a new predator comes to town? Learners analyze an experiment that studies the effect of predation on selection. They use real data to draw conclusions about the impact a new predator has on a prey species.

The sustainability of an ecosystem depends on many factors and changes constantly. Young scholars consider these factors as they use a set of cards to create food webs. They review key scientific vocabulary such as predator, prey,...

Should gray wolves be removed from Yellowstone National Park? After researching the complex relationships between the various habitats and species at Yellowstone National Park,  including humans, class members take a position on the...

Learn what makes a shark a shark and their classifications in a video presentation. The focus of the presentation is an exploration of the unique species of sharks from different orders.

Sharks have survived every major mass extinction in the history of the earth. Although the shark has had a good run, human interference threatens the survival of these formidable creatures. A video lesson explores creatures of the deep,...

In the ecological game of who eats who, one small change can have a big impact! Individuals create food chains in an array of ecosystems, then determine what happens to organisms in the chain when one organism changes its feeding...

It's a jungle out there! Young biologists journey to Darien, Panama to examine the intricate relationships between the organisms that inhabit the jungle. Groups begin by demonstrating an understanding of energy flow in ecosystems, then...

What are ecological relationships? Well, it can be complicated! Paint a clear picture for pupils with a fun and informative video. It explains and illustrates each relationship thoroughly, from pesky parasites to snuggly symbiotes.

The Burmese python is on the loose ... and he's hungry! Illustrate the differences between causative and correlative relationships through an inquiry lesson plan. Pupils examine several sources of information to determine if there is a...

Rather than hunting for food, the orchid mantis entices the prey to come to it. A cool video discusses this type of mimicry as part of a larger biology playlist. The orchid mantis appears like any typical orchid to us, but it stands out...

When railroad workers arrived in Kenya in 1898, they were greeted by some very hungry lions. Introduce young ecologists to the man-eating lions of Tsavo with a video from an extensive playlist exploring mammals. Topics include unusual...

Here's a video your class can really sink their teeth into! Dispel myths and build knowledge about great white sharks using a captivating video from Veritasium. The narrator takes you out to sea to view the animals in their natural...

Natural selection—good things come to those who mate. The video introduces the idea of natural selection. Then it details three types: directional, stabilizing, and disruptive. It includes both graphs and examples for each type.

Like tiny Supermen of the sea, mantis shrimp catch their prey using both bullet-like speed and enhanced vision. How do they do it? Young marine biologists discover the amazing adaptations found in the mantis shrimp and how they use them...

A cat's tongue makes a purr-fect grooming tool. But why are cats such obsessive groomers? Discover the many advantages a clean, silky coat gives these predators in a short video. With reasons that range from skin health to remaining...

Water striders ... amazing aquatic acrobats or ferocious predators? Introduce life science scholars to these tough little insects using an engaging video. The narrator explains the strider's ability to walk on water and how it uses this...

Humans are predisposed to fear snakes. Through evolution, many animals developed a visceral reaction to snakes as a defense mechanism. An engaging video lesson describes the evidence and how scientists came to this conclusion.

Can human activity influence the colors of moths? The simulation explains how pollution changed the color of tree bark, which led to the survival of a different variation of moths. It also discusses the shift back as air quality improves.

Examine the benefits of chemical defense mechanisms. Organisms in oceans use chemicals to ward off predators. Duplicate this adaptation using a hands-on experiment in which you ward off your predators (your pupils) with some bad-tasting...

Examine predator-prey marine relationships through an interactive lesson design. Learners begin by studying a specific shark species and then analyze real-time shark-tracking data. They also study threats to shark populations and...

Wolves eat better when the bunny population increases, but how long does that last? A series of 12 biology lessons uses the sixth installment to explore the predator-prey relationship between bunny and wolf populations. Young scientists...

The fox population chases the rabbit population. Groups model the populations of foxes and rabbits with two trigonometric functions. Individuals graph both trigonometric models on the same graph, and then teams determine an explanation...