Students discuss the importance of the Polymerase Chain Reaction for biologists. They explain what factors make the Polymerase Chain Reaction possible. Students explain the steps in thermocycling and what happens during each step.

Sixth graders study how erosion affects archaeology sites. In this investigative lesson, 6th graders construct a model of a pyramid using sugar cubes. They will investigate in groups how water, wind, and sunlight affects their model...

Students examine rubber.  In this natural rubber lesson students identify a naturally producing rubber location and present a detailed description of a rubber producing country. 

Students examine the different flow rates of liquids and how lava's viscosity influences flow.  In this liquids instructional activity students complete several handouts and a lab activity.

Students examine humanitarian work and how it has evolved.  In this humanitarian lesson students complete an in class activity then discuss their findings.

In this interactive activity from NOVA Online, explore the main features of the Nyiragongo volcano, located in the Democratic Republic of Congo, and learn what risks it poses to the 500,000 people who live in its shadow.

Nyiragongo, a stratovolcano located north of the city of Goma in the Democratic Republic of Congo threatens an entire city. Learn about this active volcano here and how it impacts those who live in this precarious location.