Cold Spring Harbor Laboratory
The DNA Molecule Is Shaped like a Twisted Ladder
One of the first models of DNA appeared to be a triple helix. Young scientists learn about the many scientists who worked to find the shape of DNA. They observe multiple models, tests, and experiments to understand the conclusions. An...
Curated OER
Madame Marie Curie & The Science of Radioactivity
A student-created, yet comprehensive 37-slide presentation on the life and contributions of Marie Curie awaits your upcoming chemists! With plenty of photographs, this resource introduces the woman who is responsible for our early...
NOAA
Vertebrates I
I spy a spine. The 19th installment of a 23-part NOAA Enrichment in Marine sciences and Oceanography (NEMO) program explores vertebrate species, such as sharks and other fish. Learners take part in an activity evaluating the...
Science Geek
The Hydrogen Bomb
Recycled Russian nuclear weapons provide 10 percent of the nuclear energy that the United States uses. The short presentation discusses the Teller-Ulam device. It provides a diagram of the parts as well as a description of the four...
University of Texas
Multi-wavelength Astronomy
Explore a land far, far away with a well-designed lesson that examines electromagnetic imaging as a way to obtain information about galactic structures. Learners begin to see the importance of looking beyond the visual spectrum to...
Virginia Department of Education
Give or Take a Few
Young mathematicians extend their knowledge of rational numbers on a number line to graph inequalities by first using number cards to compare rational numbers. They finish by using similar reasoning to graph inequalities on a number line.