All Science

122870019 b718238f72 z

Current Event May 1, 2018

Gold Mining in California Today

Politics Environment

The rules for mining on public land, which have been around since the 1870s, were used by miners during the Gold Rush. Since then the mining law has not changed. The law doesn’t require mining companies to pay royalties for mining on federal land. Some lawmakers object to the law and say the government is losing out. They’ve sponsored a new bill, but it hasn’t passed. Meanwhile, President Trump has opened more public land to mining in California and Utah. Listen to hear about mining rights on public land.

Read More
40420284994 cf37dfb1fa z

Current Event April 26, 2018

Racial Equity and Stephon Clark

Economics Race

The shooting of Stephon Clark, an unarmed black man killed by police in Sacramento, California, sparked outrage and demands for police reform. In Sacramento there is a call to rebuild communities of color. Stephon’s brother, Ste’Vante Clark is part of a group of new activists, called Build. Black. Coalition. They want to lessen the disparity around education, job opportunity, and housing, which affects the people living in predominantly black neighborhoods. Listen to hear more about how this tragic event is sparking activism to try to transform black communities.

Read More
Somethings in the water hole

Science Middle School

Low

Microbes in the Water Hole

Life Science Environment Ecosystems Human Impacts Ecology

While popular swimming holes are commonly tested for bacteria, few are tested for protozoans. Protozoan-caused illnesses can cause problems for swimmers in rivers, lakes, and ponds. Listen to learn how we can distinguish between the different types of microbes and how this introduces the classification of microorganisms.

Read More
Elysia marginata

Science Middle School

Sea Slug: Animal or Plant?

Life Science Genetics Ecosystems Oceans DNA Ecology

Small green sea slugs puzzle scientists because they can photosynthesize energy, just like plants. These Eastern Emerald Elysia sea slugs also appear to have several different types of DNA. Scientists are hopeful these sea slugs might help them discover more about human DNA and treat human diseases. Listen to learn how these tiny creatures are teaching us more about genetics.

Read More
15128137116 09b0f91903 z

Current Event April 23, 2018

Facebook CEO Answers Questions from Congress

Technology

Facebook CEO Mark Zuckerberg testified before both houses of Congress about how the social media giant protects the privacy of its users. He was questioned about how the political data mining firm, Cambridge Analytica, obtained data from millions of Facebook users. Zuckerberg was forced to acknowledge that Facebook extensively tracks users when they are using the site and when they are not even logged in. Several members of Congress asked whether Zuckerberg thought Facebook should be regulated. Listen to hear more about Zuckerberg’s statements in his testimony before Congress.

Read More
Engineering a cooler climate

Science High School

Geoengineering Combats Global Warming

Earth and Space Science Climate Change Weather and Climate Engineering Human Impacts

Scientists say it’s nearly certain that human activity and fossil fuels are warming the planet. The mainstream discussion focuses on alternative energy and reducing fossil fuel emissions. But the field of geoengineering is looking for more large scale and proactive things we can do to offset warming. Some see this as an exciting way to help the planet, others as a threat. Listen to learn about the strategies geoengineers are exploring to prevent further global warming.

Read More
Earthquake damages hydropower systems

Science Middle School

Earthquake Damages Hydropower Systems

Earth and Space Science Physical Science Energy Forces and Newton's Laws

Earthquakes can have far-reaching consequences not just on homes but on the power infrastructure. A 2008 earthquake in Southwest China left officials and engineers monitoring the structural integrity of enormous hydroelectric dams built to generate power. A fear of flooding caused by a cracked dam led some to wonder if they had taken the strengths of the region, its rivers and irrigation systems, and turned them into a potential threat. Listen to learn how hydroelectric power systems impact places and people.

Read More
2559447601 005b33ae7d b

Science High School

Editing Human Genes

Life Science DNA Biotechnology Cells

We live in an age when genetic engineering has the capacity to affect the course of human evolution. Scientists can edit human DNA, which could have profound benefits for society, but this ability also comes with dangers. Editing human DNA can allow for the treatment and prevention of disease, but this modified DNA can also become a permanent part of human genes, passed down from generation to generation. The scientific community met to discuss these issues. While experts agreed that creating a baby with edited DNA is unsafe, the support continued research to see what is possible. Listen to hear more about this issue and what scientists have concluded.

Read More
16442835565 35df1e3d80 z

Science Middle School

How Snow is Made

Climate Change Weather and Climate

The phrase “no two snowflakes are alike” is actually scientifically accurate. Snow forms high in the atmosphere, and despite its uniform appearance, each snowflake is different based upon where and how it was formed. Although snowflakes are non-living, they grow and change from the time they are formed to the time they reach the ground. Listen to learn how snow is formed and why it exists in some places but not others.

Read More
3853274411 2099d639ee b

Science Middle School

Ice Age Evolution of Rhinos

Animals Evolution Ice Age

The Tibetan Plateau is one of the highest and coldest places on Earth. Many of the world’s tallest mountains, including Mt. Everest, is on the Tibetan Plateau. For millions of years, animals living in this region have needed to adapt to extremely cold temperatures. When an ice age took over Europe and Asia about 2.5 million years ago, this adaptation may have given animals living on the plateau an evolutionary advantage. Listen to hear about the discovery of the woolly rhino on this plateau and the new theories resulting from the discovery.

Read More
7331119710 40435e6b10 k

Science Middle School

Learning to Garden and Cook in School

Life Science Health Nutrition Plants

Many schools now have gardens where students grow and harvest food that they cook themselves in class. The “Let's Move Initiative,” a program created by former First Lady Michelle Obama in 2010, has generated awareness about school gardens and teaching cooking skills that enable students to learn about healthy lifestyle habits in an effort to fight the national obesity epidemic. Listen to learn more about how a gardening and cooking project at a school in Maine is a rewarding way to learn about nutrition and healthy lifestyle skills through hands-on class activities.

Read More
Mud

Science Middle School

What is Being an Ecologist Really Like?

Life Science Ecosystems Ecology

It's easy to imagine what it's like to be a doctor, lawyer, or teacher. However, the day-to-day life of a shellfish and wetland ecologist can be a little more difficult to understand. Help your students find out what an ecologist does by hearing from Danielle Kreeger. She's the science director for a group that works to protect and improve the Delaware River and Bay. Listen to hear more about her career as an ecologist.

Read More
11593509925 c9492d1d4c h

Science Middle School

Henrietta Lacks and Patient Privacy

Life Science Cells

Cells are used in research to make scientific discoveries. A certain set of cells are among the most widely used in biomedical research worldwide. These HeLa cells have been used to research almost every disease and have played an important role in many scientific breakthroughs including the development of the polio vaccine. The cells come from a woman named Henrietta Lacks who has been mentioned in more than 70,000 published scientific papers. Listen to hear more about how these cells are used and the issues of privacy with her family.

Read More
37414482895 7536c38d61 z

Current Event April 20, 2018

Debate: Should DNA Determine the Sport You Play?

Life Science Technology Sports

New technology can help athletes gain a deeper understanding of how their bodies work. By submitting their DNA, athletes can see the results of their genetic fitness assessment. This can help athletes personalize their training routine, gain information about their ability to build muscle, or find out how prone they are to joint injuries. The results are organized in categories to let people know what they need to work on. Listen to learn more about this new technology and then debate: Should DNA determine the sport you play?

Read More
17001812582 f876bd34b7 z

Current Event April 19, 2018

Screening for Teen Depression

Health Psychology

Only about 50 percent of adolescents with depression get diagnosed before reaching adulthood and as many as 2 in 3 depressed teens don't get the care that could help them. The American Academy of Pediatrics has issued guidelines that call for universal screening for depression. They suggest that all teens over the age of 12 be screened during a visit to their doctor’s office. Listen to hear more about the effort to identify teens with depression.

Read More
Mosquitoes and raindrops

Science Middle School

Mosquitoes and Raindrops

Life Science Physical Science

Researchers are trying to figure out how mosquitoes survive raindrops. The mosquitoes receive a pelting as if, on a human scale we were being hit with massive boulders! The study of physics is helping scientists figure out this mystery. Through momentum and impulse, mosquitoes can dodge the rain and the humans trying to kill them. Listen to learn what experiments researchers had to do to understand the feeling from a mosquito's point of view.

Read More
3017838757 13c7ea8574 z

Current Event April 10, 2018

Historically Black Colleges

Race Education KERA

In the United States during the era of slavery, it was illegal for all African Americans, enslaved and free, to learn to read and write. But in 1863 the first school for freed slaves opened and by the end of the 19th century, black colleges supported civil rights activism and helped redefine what it meant to be black in America. A new documentary tells about the history of black colleges and the goals of these educational institutions. Listen to this story to hear more about the creation and development of historically black colleges and universities.

Read More
New planet

Science Middle School

New Planet on the Edge of Our Solar System

Earth and Space Science Space Systems

In 2014, astronomers discovered a new dwarf planet on the edge of our solar system. This discovery has changed scientists’ understanding of what exists in the solar system beyond the more well known dwarf planet, Pluto. The new planet is a pink ball of ice, and scientists believe there could be an unseen and undiscovered planet larger than Earth in the far reaches of our solar system.

Read More
Ocean acidification

Science Middle School

Shellfish on your Dinner Plate Threatened by Ocean Acidification

Environment Ecosystems Oceans chemistry

The increasing acidity of the oceans could eventually affect your dinner plate. There is a decrease in the number of juvenile oysters known as "seed" due to the increase of CO2 in the ocean. Listen to learn how workers are dealing with the issues and how it affects the seafood we eat.

Read More
4119076659 2c3883574c z

Current Event April 5, 2018

Space Travel Alters Genes

Earth and Space Science Space Systems Human body

NASA scientists now know more about how space travel affects the human body. They were able to study the genes of identical twins. One who went into space for a year and one who stayed on Earth. Since they share the same DNA profile, scientists had a chance to study changes to their bodies as well as changes to their DNA. The study showed that genes do change in space and remain changed even months after returning to Earth. Listen to learn more about how space travel can change human DNA.

Read More