Science Friday

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Science Friday is your trusted source for news and entertaining stories about science. Science Friday started as a radio show, created in 1991 by host and executive producer Ira Flatow. Since then, we’ve grown into much more: We produce award-winning digital videos and publish original web content covering everything from octopus camouflage to cooking on Mars. SciFri is brain fun, for curious people. The radio show is broadcast Fridays from 2-4 p.m. Eastern Time. You can listen live on public radio stations or by streaming on our website every Friday. You can also subscribe to our free radio podcast via iTunes. Join the conversation by tweeting us your questions @scifri, and browse our library of free, downloadable science videos and web articles at http://www.sciencefriday.com.

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  • Chocolate Crystal Concoctions by Science Friday

    Most Popular

    Lesson plan, Instructions for teachers, Handout, Presentations

    Chocolate Crystal Concoctions. In this lab experiment, students will become experimental chocolatiers and determine how different melting and cooling procedures impact the shine, hardness, and texture of finished chocolate. In the process,…

  • Build a Scale Model of a Shipping Container Home by Science Friday

    Lesson plan, Other, Handout, Activity

    Build a Scale Model of a Shipping Container Home. Students are introduced to shipping container home construction and design their own 3D scale model of a shipping container home made from cut-out paper templates. Students can use their mo…

  • Test the Finger Wrinkle Hypothesis by Science Friday

    Lesson plan, Instructions for teachers, Handout, Learning Tools

    Test the Finger Wrinkle Hypothesis. What causes your fingers to wrinkle in the tub? Do fingers wrinkles help you grip wet objects? After learning about the nervous system response that causes finger wrinkles, students will be introduced to…

  • Octopus Camouflage Activity by Science Friday

    Lesson plan, Handout, Game/Puzzle, Learning Tools

    Octopus Camouflage Activity. In this STEAM activity that integrates art in science, students observe and describe how an octopus can change its shape, color, size, and texture to blend in with its environment. Students sculpt their own dou…

  • Make a model eardrum to detect sound waves by Science Friday

    Instructions for teachers, Handout, Activity, Learning Tools

    Make a model eardrum to detect sound waves. In this experiment, students will be able to visualize sound vibrations from speakers by building a portable eardrum model. Students will be able to explore sound waves, amplitude, frequency (Her…

  • Explore Circuits Through Fashion by Science Friday

    Instructions for teachers, Other, Activity, Presentations

    Explore Circuits Through Fashion. Students will learn about electric DC circuits and listen to a female engineer explain how she incorporates LEDs into fashion and clothing. Students will start by creating a basic circuit from a battery, t…

  • Make a Wire Critter That Can Walk on Water by Science Friday

    Instructions for teachers, Handout, Activity, Presentations

    Make a Wire Critter That Can Walk on Water. Surface tension is caused by the attraction, or cohesion, of individual molecules to one another in a liquid. Some insects, such as water striders, are able to stand and travel on the surface of …

  • Experiment with Colored Lenses by Science Friday

    Other, Handout, Activity

    Experiment with Colored Lenses. Colored lenses change our perception of the world’s colors by acting like filters: they absorb all colors of light except for whatever color the lenses are. When we look through colored lenses, we’re actuall…

  • Estimate Pi by Dropping Sticks by Science Friday

    Instructions for teachers, Other, Activity, Learning Tools

    Estimate Pi by Dropping Sticks. The activity is based on an experiment called Buffon’s needle. In the 18th century, a mathematician determined that you can approximate pi by dropping needles on a grid of parallel lines and calculating the

  • Use Clues to Solve an Ice Mystery by Science Friday

    Lesson plan, Other, Handout, Presentations

    Use Clues to Solve an Ice Mystery. Citing evidence from multiple media resources, as well as their own observations, students will match six different mystery ice types to the place where each would most likely be found. Recipes for creati…

  • Salad Dressing Science: Emulsifiers by Science Friday

    Instructions for teachers, Other, Handout, Activity

    Salad Dressing Science: Emulsifiers. In this experiment, students will test common household ingredients to see which is the most effective emulsifier for making salad dressing. This quantitative lab is anchored by informational texts on e…

  • Firefly Communication by Science Friday

    Lesson plan, Instructions for teachers, Other, Handout

    Firefly Communication. Did you know that you can talk like a firefly? Using just a penlight and a cheat sheet of firefly signals, students will be on their way towards speaking in a genuine firefly dialect (though their accents may need ex…

  • Create a disease map using real data by Science Friday

    Lesson plan, Instructions for teachers, Handout, Activity

    Create a disease map using real data. In this Common Core aligned activity students will use real data from the Centers for Disease Control and Prevention (CDC) to map the prevalence of a vector-borne disease. Students can map data by hand…

  • Cephalopod Diversity Playlist by Science Friday

    Game/Puzzle, Presentations

    Cephalopod Diversity Playlist. Let's celebrate Cephalopods! They’re quick, clever, and masters of disguise. Some people find them scary, some cute, and others think they’re just tasty. Vampire Squid adaptation, Octopus Camouflage, Nautilus

  • How Boulders Are Born by Science Friday

    Instructions for teachers, Presentations

    How Boulders Are Born. In this activity, students will review and discuss weathering, erosion and mass wasting, to gain a stronger understanding of how Hickory Run’s Boulder Field was formed after the Laurentide Continental Glacier receded…

  • Delicious Smelling Chemistry by Science Friday

    Instructions for teachers, Presentations

    Delicious Smelling Chemistry. In this activity, students will use household materials to investigate and explore their ability to smell an odor. Students will compare and contrast results to determine if some individuals have a better sens…

  • Keeping a Betta by Science Friday

    Instructions for teachers, Presentations

    Keeping a Betta. In this activity, students will research general information about bettas and use that information to determine suitable habitat requirements and maintenance. Students will work collaboratively to perform weekly maintenanc…

  • Investigate Boiling Points with Leidenfrost drops by Science Friday

    Instructions for teachers, Other, Handout

    Investigate Boiling Points with Leidenfrost drops. The Leidenfrost effect describes how a liquid on a hot surface can produce steam so quickly that it forms an insulating layer between the liquid and the surface causing the drops to jump, …

  • Wind Power - Build a Model Wind Turbine by Science Friday

    Instructions for teachers, Presentations

    Wind Power - Build a Model Wind Turbine. In this activity, students will discuss the differences between the Bear Creek Wind Park and Bergey Windpower turbines. Students will learn the basic parts of a wind turbine and then build their own…