Most Recent Episode

May 24, 2024

A van outfitted as a mobile laboratory helps scientists study how legal cannabis products affect users—without breaking the law. Plus, after decades of under-development, spending on high-speed rail projects is ramping up in California, Florida, and the Northeast Corridor. And, for the first time, scientists have recorded how salps form chains and swim in corkscrews to reach the ocean’s surface each night.

LISTEN HERE

Sign Up For Science Friday’s Newsletters!

From sneak peeks of the show to educational resources to events, stay up to speed with all things SciFri.

Read More
Educational Resource

Sublime Sublimation

Looking for ways to jazz up your party? Patrick Buckley, co-author of The Hungry Scientist Handbook, demonstrates how to make carbonated fruit. Materials required: fruit (the firmer the better), a pressure cooker and a handful of dry ice cubes. Note: This lesson provides a great introduction to another Teachers TalkingScience lesson, Capturing Carbon Dioxide.

Read More
Educational Resource

Gassy Microbes

Some microbes produce different types of gases as a byproduct of their metabolic processes. The microbes in this Science Friday Video released an odorless and flammable gas called methane. The type of gas or gases released by a microbe depends on the species and their metabolic characteristics. In this activity, students will conduct an experiment to observe the metabolic process of yeast by using household ingredients. Students will vary conditions in the yeast’s surrounding environment and observe the amount of gas that the yeast releases

Read More
Educational Resource

What is Nanotechnology?

Nanotechnology is the study of what happens when things get very, very small – only a few atoms in size. The word “nanometer” means one billionth of a meter, perhaps five or six atoms long. At the nanoscale, materials can have very different physical or chemical properties, even though they are the same. In particular, super thin films of material, only a few nanometers thick, can cause interference within light reflecting off them, resulting in beautiful displays of colors.

Read More
Educational Resource

Sound Science

Sound is all around us. Everything we hear in our day-to-day lives has a distinctive sound, from the jingling of keys to the tapping of footsteps in a hallway. Sound is created when objects vibrate. These vibrations cause the air around them to vibrate, sending sound waves in various directions. Some objects tend to vibrate at a specific rate. This is known as their resonant frequency. In this activity, students will explore the vibrating nature of sound and how it travels from molecule to molecule.

Read More
Educational Resource

Mushroom Prints

In this lesson, students will be amateur mycologists–collecting and analyzing various mushrooms. Through observation and discussion, students will gain knowledge of the basic anatomy of mushrooms, their life cycle, and their method of reproduction through spores. Students will learn to create spore prints of mushrooms and label and preserve their spore prints, just like a mycologist. Students also will learn that by comparing spore prints, they can identify different mushroom species.

Read More
Segment

Ocean Priorities

Ira talks with Peter Seligmann, chairman of Conservation International, and with Philippe Cousteau Jr. about the connections between ocean policy, the environment, and the economy.

Read More