Proving microscopic structures exist is a difficult task. Learn how scientists did just that in the mid-1800s as they set out to identify the cellular structures related to genetics. The online lesson explains the collection of work that...

Take a trip on a fossil hunt. Pupils read about a trip to the Gobi Desert by a group of paleontologists to find fossils. Learners view pictures taken on the trip and determine what the scientists go through in the search for answers to...

For years, scientists believed tRNA was junk left over from larger RNA. Three scientists used different approaches to prove tRNA actually exists as the connection between DNA and protein. Learn about their experiments, their lives, and...

Connect Mendelian genetics with Darwinian theories. An interactive lesson lets pupils explore how George Shull used research from other scientists to explore genetic variation. The resource outlines the statistical analysis of genetic...

Get to know all about sauropods from a paleontologist, Jonah. Following an introductory video, scholars choose from five fossils to learn more about. Each fossil begins with a video, provides information from several different...

The news often refers to a team of experts handling situations and outbreaks of illnesses. Young scientists learn about such a team as they train to prevent infectious disease outbreaks  Scholars meet three experts, learn about...

Some people have a natural ability to jump, but did you know DNA also naturally jumps? Learn about the fun habit by looking at the research of a pioneering female scientist. Barbara McClintock fought prejudice and surpassed her mentors...

A celestial body's distance from Earth makes studying its characteristics much more difficult. Learn how scientists use indirect measures to determine the size of stars. The interactive activity has individuals adjust the size of binary...

The potential energy of peptides varies over time as they fold. An exploratory simulation encourages pupils to play with various strands of amino acids to observe the folding and potential energy levels. Young scientists generate all...

Earth's climate changed drastically throughout the history of the planet, so why do scientists blame humans for recent changes? Observe data covering the history of the planet that proves the natural climate change patterns. Then, learn...

Ardipithecus ramidus shares features with both humans and chimpanzees. Learn about where Ardi, humans, and chimps fit in the tree of life by comparing anatomical features including the foot, pelvis, and teeth. After exploring those...

The marine bacteria vibrio harveyi helps with DNA repair in humans. Understanding how to manipulate and genetically mutate this bacteria fascinates researchers. Young scientists observe two different mutations, predict the resulting...

An outbreak of disease is affecting people in a distant region—it's time to get to work! Scholars take the role of scientists as they learn more about the illness, discover the possible causes, and find a way to prevent the further...

In 1993, Phillip Sharp and Richard Roberts won the Nobel Prize for their discovery of split gene theory. Learn about the breakthrough with the help of an online interactive. Hear both scientists explain it in their own words, watch an...

Have you ever been so tired you missed a major announcement? Eric Wieschaus woke to a call explaining he won the Nobel Prize, but he thought it was just a dream until Christiane Nusslein-Volhard, a co-winner, explained it to him later...

Personalized medicine prevents many trial-and-error scenarios when time counts the most. Learn how gene expression and screening genomes improves health outcomes in cancer patients, those with auto-immune disorders, and more. An online...

Regulations exist in many places from business to schools, but what about in our genes? Learn about gene regulation with an online interactive. It uses an animation to introduce the topic, many photographs of the scientists best known...

Put all the pieces together. After a skeleton is put together, pupils play the scientist to determine the type of animal they have by using a classification tree to narrow down the identity. After each decision, they gain advice from an...

For this "Who Am I?" quiz worksheet, students examine the 12 clues regarding noteworthy scientists born between 1452 and 1951. Students identify the scientists and click on links to check their answers.

A dozen years after a great plague wipes out the majority of Earth's civilization, a group of scientists joins together to fight infectious diseases. Scholars join the training mission and learn about viruses, bacteria, pathogens and...

Take a peek into thousands of frozen samples. Learners try to identify an image of a piece of frozen tissue. After choosing the correct answer, scholars find out more information about the American Museum of Natural History's Frozen...

Introduce someday scientists to ideas and explanations about how the world around us works by showing this cute cartoon. In it, Mia and Sam discuss what scientific theory is, and how it is important in discovering scientific laws making...

Zoe and RJ are trying to photograph an egret on a lake, but they are having trouble with the lighting. Reflection, refraction, and absorption are explored through their thoughtful dialogue so that your physical scientists are illuminated...

Is it possible to defy gravity? Not really. With force and inertia, we can act against it for a little while, but, eventually, gravitational force will pull us back to Earth. The relationships among mass, force, and inertia are all...