Animals and plants develop relationships and rely on each other to survive. Pupils learn more about symbiosis through a video, a hands-on matching activity, and a game. They differentiate and describe each type on a written evaluation.

Is there such a thing as "stranger danger" on the Internet? Learners discover the myths and realities of online predators, as well as how to approach a situation in which they are contacted by strangers online.

Help build young scholars' understanding of living things with the tools provided in this comprehensive life science resource. Including a total of nine lessons that cover topics ranging from plant and animal life cycles to heredity and...

As 3rd graders continue reading Bullfrog at Magnolia Circle, they focus on the concepts of predator and prey in the fifth lesson plan of this unit. Scholars further develop their ability to answer questions using evidence from the text...

Don't be a lone wolf, learn how the reintroduction of wolves in Yellowstone Park altered the biotic and abiotic factors. Video describes the impact of biotic and abiotic factors at multiple levels. It highlights the examples of food...

New ReviewAm I going to catch it? Individuals time how long it takes them to walk, jog, and run a given distance and calculate their speed. They then research two animals and find their speeds. Using a chart, pupils compare the speeds of the...

How do populations interact with one another? Identify the different types of interactions and how population sizes fluctuate and affect one another using an interesting PowerPoint presentation. Learners explore real-world examples of...

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,...

The rock pocket mouse exists either with light colored or dark colored fur. As their habitat changes from sandy desert to lava flows the prominence of each color fur also changes. Viewers compare the visibility of each mouse's fur color...

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...

In an invertebrate beauty pageant, why do millipedes always scuttle away with the crown? Part four of a five-part series of Invertebrate videos compares and contrasts the millipede with the centipede in terms of diet, behavior, and body...

What animal is only eight inches long and can easily kill an adult human? The blue-ringed octopus changes body color before neutralizing any threat, human or not. Observe the drastic changes to body color in a short video.

Anemones contain harpoon-like structures in their tentacles to attack prey. A video shares an up-close look at an anemone eating a goby. It highlights the attack, capture, and demise of the prey through a system evolved over the course...

While most sea anemones move slowly along rocks, Stomphia swim to escape predators. Viewers see a sea star sneak up on an anemone ready to attack. The unsuspecting anemone retaliates quickly and swims away awkwardly as part of a larger...

Over millions of years, bats developed flight and echolocation, so why are some bats now walking to look for food? An interesting video explains the changes in predator and prey relationships due to adaptation. Which adaptation is the...

Talk about a sticky situation! What is spider silk, anyway? Scholars scope out the science behind one of the world's strongest substances through a video from an intriguing science series. A leading spider scientist discusses the types...

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...

What happens when the top predator on an ecosystem disappears? Scholars explore this idea through an introduction example and four case studies. They learn to analyze the importance of every member in a food pyramid to come to their...

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...

It's not every day that you end up rooting for a mouse. A breathtaking video takes scholars to the American Southwest to learn about the rock pocket mouse. It describes how mice with black fur had an evolutionary advantage in the dark...

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.

How did scientists unravel the mystery of an ancient beaver species? An engaging video from a well-written biology playlist discusses the discovery of strange spiral fossils found in Nebraska farm country. Junior paleontologists examine...