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Physics & Chemistry/Materials Science

Picture of the Week: Ferrofluid

Magnets are pretty cool. The way they attract and repel—it’s like magic. But a liquid magnet? That’s even cooler. Called a ferrofluid, such a liquid is comprised of tiny magnetic particles between 10 and 15 nanometers wide suspended in a fluid. In the presence of a magnetic field, the material ebbs and flows according to […]

How Can We Build Homes That Are Resistant to Mold?

Chocolate Crystal Concoctions

Chocolate Crystal Concoctions

Lovely Leidenfrost

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Lovely Leidenfrost

Target Grades: 8th-12th Content Areas: Chemistry, Physical Science Activity Type: Experiment, Data Analysis NGSS:  HS-PS1-3, MS-PS1-4 CCSS: ELA-Literacy.RST.9-10.3 If a liquid is slowly heated in a pan past its boiling point, it usually steams, eventually evaporating away. The Leidenfrost effect describes a phenomenon where a liquid heated past its boiling point doesn’t evaporate, but rather silently glides on the […]

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