Matchy-matchy no longer exclusively applies to fashion. Scholars work through three levels of practice matching position and velocity graphs. Part of a series covering dimensional kinematics, each question provides immediate feedback and...

Pupils apply their understanding of motion to 11 practice problems as part of a series on dimensional kinematics. They view a dot diagram animation and read descriptions to identify which match. As a bonus, the interactive offers...

Most pupils learn quickly how to apply Newton's Second Law equation to calculate net force. However, many struggle to determine net force before calculating the value of an unknown force from a force diagram. As part of a larger series...

Scholars quantitatively apply their knowledge relating impulse, force, and time in the collision of objects. Three progressive levels challenge pupils with different ways of analyzing these problems. They identify multiple collision...

The acceleration rate of a flea jumping works out to 50 times faster than the acceleration rate of the space shuttle. Pupils apply knowledge of acceleration to dot diagrams, velocity-time tables, and word problems. They solve for...

The majority of all confirmed exoplanets relied on Kepler's laws to discover their locations. Scholars learn how to apply Kepler's laws and then practice using data to discover exoplanets. They benefit from NASA video footage, NOVA...

The Kepler missions discovered and confirmed more than 2,650 exoplanets to date. A video shares the data from the first five discoveries. It provides graphs and diagrams to put each discovery in perspective to help scholars discuss the...

Take a load off! Introduce junior engineers to the effects of load on structural design with an easy-to-use interactive. Individuals apply one of many load options, examine its effects, then learn about the safeguards employed during...

Scientists detected exoplanets by measuring how the brightness of stars changed over time. Young astronomers interpret and analyze the same data that led to exoplanet discoveries. They learn to apply light curve graphs and connect the...

Create a company, advertise it, and hope it grows. The seventh of eight parts in the Google CS First Friends unit challenges future business leaders to apply computer coding to create an advertisement for a company. After pairs come...

Climate systems involve sunlight, ocean, atmosphere, ice, land forms, and many other factors. Scholars explore each of these variables related to the Pacific Northwest rain forest. They use an online interactive to investigate the polar...

Let the star's color be the guide! The color of a star indicates its temperature and its mass and distance affect the gravitational force. The lesson presentations address these concepts as well as how the theory of special relativity...

Learn to analyze vector addition on graph paper through multiple levels of practice problems. Pupils begin with two component addition and move through three and four components to prove mastery as one part of a series on vectors and...

Around 500,000 children under the age of six suffer from elevated levels of lead in their blood in the United States. Scholars apply their knowledge about lead to a fun game. As they correctly answer questions, they move their pieces...

Brown rice contains vitamins B and E, while white rice lasts longer in storage. The availability of rice around the world makes it a great candidate for genetic engineering. Scholars apply their knowledge of genetic engineering to solve...

Gene switches work similarly to light switches in controlling one feature of their environments. Scholars study the Pitx1 gene in a specific type of fish. They learn the different ways this switch controls various body parts and...

Frederick Sanger won two Nobel prizes for protein sequencing and DNA sequencing. Young scientists learn about Dr. Sanger's research and amazing discoveries. They read an article and a biography, view videos and animations, and apply...

The experiment known as one of the most beautiful experiments in biology changed the way we think about DNA. Learn about the experiment and the scientists who designed it—as well as the scientists who built on the results—with an online...

Does a protein or DNA store genetic instructions for life? Follow the research from the 1920's experiments on mice through the 1940's experiments on bacteria to learn the answer to the difficult question. Scholars use an online...

The breakthrough of Mendelian genetics solved many puzzles for biologists. Then, scientists decided to apply the theory to human behavior. Learn the story and struggle of finding a genetic explanation for hobbies, interests, and mental...

People with the sickle cell trait, but not sickle cell disease, find natural protection against malaria. Scholars consider various combinations of genotypes and environmental factors to determine if children might have sickle cell...

Chromosomes contain keys to history including links from royalty to Neanderthals. Young scientists learn about Ivan Wallin's research into chromosomes with an animation and videos. Then, the concept connects to mysteries related to...

Today researchers identify a gene suspected of causing a genetic disease in a matter of days rather than years, thanks to the Human Genome Project. Young scientists learn about the Human Genome Project and the scientists who designed the...

Roger Kornberg, the oldest son of two biochemists, won the 2006 Nobel Prize in Chemistry. Learn about Kornberg and his scientific research with an animation, videos, biography, and an applied problem-solving activity. A summary and...