Do you know how many calories are in a macadamia nut? This video segment highlighting a Calorimetry experiment will give you the answer.
Learn about one town's conflict over the issue of spraying pesticides to combat disease-carrying insects, in this video segment from Greater Boston.
In this video segment adapted from NOVA scienceNOW, scientists discuss a family of genes called FOXO that can significantly extend life span in worms—and in humans.
In this media-rich lesson, students explore careers in science through profiles of Alaska Native scientists. They consider how traditional ways of knowing and Western approaches to science can complement each other and allow students to incorporate their own interests when considering careers in science.
This video segment explains centripetal force and illustrates how roller coasters rely on it to give you a thrilling ride.
Learn about the Chandra X-Ray Observatory's telescope system, science instruments, and spacecraft system in this interactive activity adapted from NASA.
In this video produced for Teachers' Domain, learn about MIT professor Cathy Drennan's research into microorganisms that remove carbon dioxide, a greenhouse gas, from the atmosphere.
The push to modernize Mexico's water and sanitation systems not only saved human lives, it also spurred economic growth, as illustrated in this video segment adapted from Rx for Survival.
This video from NASA describes the detailed computer modeling used to predict that colliding neutron stars can produce gamma-ray bursts similar to those associated with black holes.
Visualize how comets carrying chemicals necessary for life could have made their way to Earth billions of years ago in this video segment adapted from NOVA.
Amino acids, essential ingredients for life, may have been delivered to Earth by comets billions of years ago, as visualized in this video segment adapted from NOVA.
In this interactive activity adapted from Anneberg Learner’s Teaching Math Grades 3–5, compare fractions on number lines to determine which class of students wins bubble-gum-blowing contests.
In this video segment you’ll discover how using concentric circles can help you determine how much paint is needed to cover the deck of a carousel.
In this lesson designed to enhance literacy skills, students learn how the theory that explains the position of Earth's continents was established and later modified, and gain important insights into how science and the scientific community operate.
In this video excerpt from NOVA, find out how whole genome sequencing saved the life of Alexis, a fraternal twin who was originally diagnosed with cerebral palsy but, in fact, had an even rarer genetic condition.
This interactive activity from ChemThink takes a closer look at a covalent bond--how it is formed and how the sharing of two electrons can keep atoms together.
Students learn how DNA fingerprinting has been used in criminal investigations and discuss the limitations of and problems with DNA testing.
In this interactive activity from the Building Big Web site, investigate dams in distress and decide if they should be repaired, removed, or left alone.
In this video from KQED's QUEST, find out how researchers have engineered a stove that is helping women in refugee camps in Darfur, Sudan.
In this video segment adapted from Navajo Technical College, meet a dendroclimatologist who studies the relationship between precipitation and tree growth in the Navajo Nation.