Does exercise cause heart rates to be different? Given data regarding the number of hours of exercise per week and heart rates, pupils determine the correlation between the two. The data includes two types of heart rates to associate...

How far have California's Channel islands moved? What was the rate of this movement? Class members first examine data that shows the age of the Hawaiian island chain and the average speed of the Pacific Plate. They then watch West of the...

In 1977, scientists discovered hot springs in the middle of deep, cold ocean waters near the Galapagos Islands. Scholars research the chemical reactions that explain what scientists found at the Lost City. A discussion connects many...

The Gulf of Mexico dead zone, an area of low oxygen that kills marine life, costs the United States $82 million every year. Young scientists research anoxic ocean environments then come up with a hypothesis for the cause of the Gulf of...

Nanofibers can be made through electrospinning or force spinning in order to reduce the negative impact on the environment. Pupils study the role of fibers and dye on the environment through a series of five hands-on activities. Then,...

Currently, only 2.1% of global warming is felt on continents, while over 93% is felt in the oceans. The fourth lesson in the series of 21 on global warming is composed of three activities that build off one another. In the first...

Many researchers focus on one impact of climate change in isolation, but researchers gain a global perspective when they come together. A timely lesson teaches scholars about the projected impacts of global temperature increases. Then...

Some of the CO2 emitted by burning fossil fuels is removed from the atmosphere by natural sinks, such as the ocean. The fifth engaging instructional activity in the series of 21 examines the CO2 data from three very different locations....

Tardigrades are microscopic organisms (0.5 mm long) with segmented bodies and four pairs of legs, each with four to eight claws. The narrator of this video explores tardigrades, organisms that can survive the most extreme environments...

Climate change isn't just about a warming planet; it will affect humans' health, spread of disease, changes in heat waves and droughts, and changes in storms and wildfires. Participants explore global climate change through discussions...

As of April, 2016, more than 28,000 suspected cases of Ebola were recorded in Western Africa with over 11,000 human deaths. Classes discuss the Ebola virus outbreak in 2014 and then groups develop an action plan based on research,...

Between 1968 and 2002, the total number of peppered moths decreased by almost two thirds, although scientists do now know why. In the 10th video of the series, the instructor defines evolution as any changes to a gene pool. Scholars then...

Viewers explore real-world examples of both evolution and natural selection as the instructor discusses changes to the environment, mutations causing changes in phenotypes and changing the fitness in organisms, and how humans are...

Some scientists believe humans are no longer evolving and have reached their evolutionary peak. In the video, scholars explore Darwin and his published work, The Origin of Species. The instructor discusses Darwin's ideas of biogeography,...

Scholars learn how rock layers, shift, and move over time. The instructor shows viewers how to solve geologic problems to determine the order of rock layers from oldest to youngest through a drawing video and then actual photographs. 

While a herd of cows are eating, they tend to all face the same direction. Viewers explore the world of animal behavior, looking at both morphology and physiology, with a video that focuses on the evolutionary history of learned...

Let's leave climate change arguments up to the seasoned scientists. A change in biodiversity due to changing temperature can lead to, what, exactly? Through a series of discussions, activities, and observations, pupils connect climate...

Despite their microscopic size, eukaryotic cells are probably one of the most complex systems ever! Explore the structure and function of the major organelles of eukaryotic cells — the nucleus, ER, ribosomes, golgi complex, lysosomes,...

Young scholars calculate the escape velocity of planets in our solar system and use that knowledge to calculate the escape velocity for NGC 2300 group. They then suggest reasons for the escape velocity to be higher than possible given...