NASA’s Operation IceBridge, the largest airborne survey of Earth’s polar ice, uses remote sensing techniques like LiDAR (light detection and ranging), snow- and ice-penetrating radar, high resolution digital imaging, and infrared cameras to collect information on our changing ice sheets and sea ice. Several times each year a science team and flight crew head out on month-long campaigns in
This lesson includes a variety of research activities and a lab that all help demonstrate the science behind convection currents.
Objectives
Through the following activities and lab students will discover:
* that temperature and salinity affect the density of fluids (liquids and gases)
* how fluids with different densities interact with each other
Coring trees is a way of learning about trees without cutting them down. When a tree is cored, the rings are examined to learn about the history and growth of a tree. In this lesson students will participate in a hands-on activity to help them investigate what information can be gained by studying and comparing tree core samples collected
This is a food web activity that I developed after my spring 2006 TREC expedition on board the USCGC Healy, for 30 days in the Bering Sea. It is a set of lessons that include setting the context with a map activity, researching the organisms in, on, and around the Bering Sea, reading an article or book on connections between