"NASA scientists have discovered water molecules in the polar regions of the MOON. Instruments aboard three separate spacecraft revealed water molecules in amounts that are greater than predicted, but still relatively small."
Click here to read the rest of the NASA press release.
It is not every day a major Interstate highway gets closed by flooding in Georgia. Interstate 20 was closed west of Atlanta for around two days because of Sweetwater Creek flowing over it.
Southeastern Rainfall Map for September 14–21, 2009
"Several storms over the southeastern United States left behind acres of standing water and multiple deaths in September 2009. The governor of Georgia declared a state of emergency in the state’s 17 counties hardest hit by the floods, CNN reported. Deaths in Georgia alone totaled 7 by the morning of September 22, 2009, according to the Atlanta Journal Constitution."
Have your students contrast the above map to this Average Rainfall Map:
The TRICK is that there are different units on each map! See if any of your students catch that! If not, hint that they need to look closer! Provide them with a conversion factor: 1 mm = 0.039 inches.
Then have them add the inches to the mm SE US Rainfall Map. Example: 300 mm = 11.8 mm. Then how much different is the one map from the other?
AH-HA! The bottom map shows a yearly average! See if any of your students catches that. If not, hint that there is still something wrong! Perhaps look for a monthly average chart online? Divide the total by 12 for average monthly?
BUT look closely at the title! This is only for one week! What is the usual/average/typical rainfall for one week? How can we find that? NOW can you contrast the maps???
"The otherworldly footprint of black basaltic lava creates a striking landscape at Black Point Lava Flow in northern Arizona, seen in this photograph taken from the International Space Station."
I highly recommend the site where this photo resides: NASA's Earth Observatory which has an Image of the Day. Great Earth Science Photos, worthy of being shown daily during your bellwork time, perhaps!
I'm the lucky grandmother of two adorable grandsons (and another one on his way) and one beautiful granddaughter, which trumps everything else about me. I'm also a retired high school science teacher. I love quilting and genealogy and perennial gardening, and passing on what I know about good science teaching.
You are welcome to use these ideas in your classroom, within your science department, within your school district, or to distribute to any teacher who may find these lessons useful. I only ask that: 1. You cannot sell these lessons or make a profit on them in any way. 2. You cite the lessons original source, and do not white-out the copyright footer on the pdf files 3.Do not copy and paste lessons onto your website. A link to the original is to be used. 4. Do not claim these lessons as your own work. NOTE: This disclaimer is modeled after a couple of my favorite websites: The Science Spot and Middle School Science. Thanks, teachers!