How can the ocean be colder than 0 degrees C, the temperature at which water freezes? As it turns out, the concentration of the particles (in this case, the ions from the salt) in ocean water lowers the temperature at which the saltwater will freeze. Students will learn how ocean water freezes at a lower temperature than freshwater by
Jeff Peneston, Liverpool High School science teacher and PolarTREC 2008 alumnus was introduced as the New York State Teacher of the Year at an event in the White House Rose Garden that was televised nationally on cable TV. The article describes the awarding of this honor by President Barack Obama at the White House.
This is a one hour webinar is part of the Polaris Project 2012, conducted by Max Holmes and John Schade. In this session Andy Bunn, professor at Western Washington University, presents a lecture on the history and science of climate change.
This is a one hour webinar specifically for the participants of the Polaris Project 2012, conducted by Max Holmes and John Schade. In this session, a variety of team members present their scientific work.
This presentation is part of the Polaris Project Webinar Series preparing participants for the field season 2012. This is one of two lectures to view for Session Two. You need to also watch the Sobczak Presentation Archive.
This presentation is part of the Polaris Project Webinar Series preparing participants for the field season 2012. This is one of two lecture to view for Session Two. You need to also watch the Schade Presentation Archive.
This is a one hour webinar specifically for the participants of the Polaris Project 2012, conducted by Max Holmes and John Schade. This is the introductory session.
Humans are creative. They try to solve problems in original ways. For example, some scientists are thinking of ways to decrease the amount of greenhouse gases in the air. Other scientists are thinking of ways to limit the amount of sun that reaches Earth so that the Earth won’t get so warm. Like most ideas, there are pros (good
Textbooks say that carbon dioxide is a greenhouse gas and can make earth's climate hotter. Try this lab to see if carbon dioxide gas can really act like a greenhouse.
Objectives
Students should be able to make a hypothesis, perform an experiment, analyze data and write a conclusion based on the evidence from their experiment.