posted on July 21, 2014 at 9:14 AM
Even though at first appearance corals may look like plants or rocks, they are in fact animals, related to sea anemones and jellyfish. Coral reefs the world over are threatened by pollution, rising ocean temperatures and overfishing. In Cuba however, reefs are flourishing.
Coral reefs are extremely sensitive to environmental changes and depend on clean, clear saltwater for survival. Pollution and agricultural runoff can have a huge impact on the health of a coral reef. In this sense, Cuba’s Communist government may have inadvertently helped protect the Cuban reefs for many years by preventing the flow of fresh water to the sea, as well as limiting the availability and use of fertilizer and pesticides. However, as Cuba begins to open its doors to the rest of the world, increased commercialism and tourism is once again increasing levels of pollution, sedimentation and development in coastal areas, which creates a negative effect on the...
posted on July 8, 2014 at 8:48 AM
The 4th of July was fantastic and chances are it involved eating and grilling. Ever wonder why we cook our food? We do it because it tastes good, of course, and because our customs and traditions are built around it. But we also cook our food for some basic biological reasons. Some scientists think that figuring out how to cook actually MADE us human.
Check out this
posted on May 27, 2014 at 11:20 AM
The latest initiative in the growing NOVA Labs citizen science platform––an online RNA Lab––utilizes puzzles from Eterna, a game that allows players to design RNAs, tiny molecules at the heart of every cell in our bodies. A series of animated videos explains the science behind the game and teaches novices how to play it. The Lab aims to expand the community of participants while giving students and science enthusiasts an engaging way to explore important concepts in the life sciences and...
posted on May 19, 2014 at 12:00 AM
Iowa Public Television invites you to register for the Iowa Public Television Teacher Training Institute which will be held June 13, 2014. IPTVTTI will offer networking and professional development opportunities for educators from around the state. Master Teachers, highly qualified educators who have been selected by IPTV, will present model lessons that are cross curricular and STEM based. The opportunity to learn about IPTV and PBS resources, as well as how to submit your own qualifying lesson to IPTV for a stipend, will be offered in June at the Johnston Middle School located at...
posted on April 30, 2014 at 2:21 PM
What do beatboxing and breakdancing have to do with education? As it turns out, a lot more than you might think!
Take a creative turn in your class this week and introduce your students to Rashidi Omari, the co-director of the Destiny Arts Youth Performance Company at the Destiny Arts Center in Oakland, CA. This violence prevention and arts education organization has been serving youth ages 3-18 for 22 years in a mission to end isolation, prejudice and violence in the lives of young people. It achieves this mission through after-school, weekend, and summer programs in dance, theater, martial arts, self-defense, conflict resolution, performance and youth leadership. Destiny’s core curriculum,...
posted on April 21, 2014 at 2:57 PM
Consider the environmental impacts of America's current food system. In the 21st century global food economy, why are most foods traveling an average of 1,500 miles from farm to plate? Why does it take twenty calories of fossil fuel energy to produce two calories of food energy today, whereas 100 years ago, it took only one calorie of fossil fuel energy to produce the same amount of food energy?
The complexities of our food system and its impact on the environment are at the forefront of a national debate. Use this PBS LearningMedia
posted on April 17, 2014 at 8:32 AM
On March 25, 2014, the State of Iowa celebrated a milestone with the official unveiling of the Dr. Norman E. Borlaug statue in National Statuary Hall at the U.S. Capitol in Washington, D.C. Appropriately, the date would have been Dr. Borlaug's 100th birthday and is also National Agriculture Day.
Dr. Borlaug of Cresco, Iowa, is known as the "Father of The Green Revolution" and his development of miracle wheat is credited with saving an estimated billion people around the world from hunger and starvation. He is the only American to receive the Nobel Peace Prize, the Congressional Gold Medal, the Presidential Medal of Freedom and the National Medal of...