Monday, January 10, 2011

NOVA: Deadliest Earthquakes - Tuesday Jan 11, 8 p.m. on PBS


This week on NOVA:
Deadliest Earthquakes

Airing Tuesday
January 11 at 8 pm on PBS

(Check local listings)

In 2010, several epic earthquakes delivered one of the worst annual death tolls ever recorded. The deadliest strike, in Haiti, killed more than 200,000 people and reduced homes, hospitals, schools, and the presidential palace to rubble. In exclusive coverage, a NOVA camera crew follows a team of U.S. geologists as they enter Haiti in the immediate aftermath of the tragedy. The team hunts for crucial evidence that will help them determine exactly what happened deep underground and what the risks are of a new killer quake. Barely a month after the Haiti quake, Chile was struck by a quake 100 times more powerful, unleashing a tsunami that put the entire Pacific coast on high alert. In a coastal town devastated by the rushing wave, NOVA follows a team of geologists as they battle aftershocks to measure the displacement caused by the earthquake. Could their work, and the work of geologists at earthquake hot spots around the U.S., one day lead to a breakthrough in predicting quakes before they happen? NOVA investigates compelling new leads in this profound scientific conundrum.

Find the Tectonic Fault
In this seismic image, see if you can locate an unsettling new fault just discovered beneath the Mississippi River.

Earthquakes in the Midwest
Three massive earthquakes struck the American Midwest in 1811-12. Could it happen again?

Watch a Preview
Watch a preview of the program online now.

Remember, most NOVA programs stream on our website the day after our premiere, so if you missed any broadcast, you can catch it at:http://www.pbs.org/wgbh/nova/schedule.html

Friday, January 7, 2011

Tsunami!


Saturday, December 11, 2010

Seasons Greetings (and Explanations)


Click on the image to visit a helpful website explaining Earth's Tilt and the Seasons and more.

https://fretzreview.wikispaces.com/Seasons-Causes+Group+1


Wednesday, November 24, 2010

Astronomy Exam Videos

The following YouTube videos should be helpful as you prepare for the 2nd Astronomy exam, scheduled for the week of Monday, December 13, 2010.



* NEW *


Thursday, November 4, 2010

Saturday, October 30, 2010

Not so "Rare Earth" elements

Currently, there is great demand for certain minerals known as "Rare Earths". While the elements are not actually that rare, and most are actually metals, the majority of them that we use are currently mined in China.

Why are these important? without them, you would not have the current variety of mobile phones (including i-phones), flat-screen TV's and most of the electronic devices that we have come to rely on.

Similar to the Chocolate Chip Cookie Lab we worked on last week, the most efficient way of getting these minerals is through strip mining and dangerous factory work that leaves the soil, air and water polluted with acids, toxic metals and even radioactive waste (the radioactive element Thorium is often found with the iron ore that also holds the rare earth minerals.

According to a recent New York Times article, "The refineries and the iron ore processing mill pump their waste into an artificial lake here. The reservoir, four square miles and surrounded by an earthen embankment four stories high, holds a dark gray, slightly radioactive sludge laced with toxic chemical compounds.

The deadly lake is not far from the Yellow River watershed that supplies drinking water to much of northern China. The reservoir covers an area 100 times the size of the alumina factory waste pond that collapsed this month in Hungary, inundating villages there and killing at least nine people."

Thursday, October 28, 2010

Minerals Study Guide Resources

websites that can help you prepare your minerals exam study guide: