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
Mount St. Mary's College in Los Angeles profiles one of its alumni, teacher Cristina Solis who also happens to be a PolarTREC alumnus. Read about her journey to become an educator and her participation in a PolarTREC study of microbial activity in thawing arctic permafrost near Barrow, Alaska.
Students will conduct a soil study by investigating pH and water absorption.
Objectives
Students will learn:
* How to describe the composition of soil and explain how it forms.
* That soil is made up of tiny particles of rock, plant, and animal matter.
* How to determine whether a solution is acidic, basic, or neutral.
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Students will investigate what a carbon footprint is and calculate their own personal carbon footprint. Finally, students will develop ways to reduce their carbon footprint.
Objectives
Students will know that the principles of chemistry underlie the functioning of biological systems.
Students will know that carbon, because of its ability to combine in many ways with
PolarTREC teacher Cristina Solis and her team presented their work on microbial activity in the tundra to junior docents at Cabrillio Marine Aquarium. This is a one hour presentation with Cristina and her research team.
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.