Jeanine.Gelhaus last edited by
Early Mars was covered in ice sheets, not flowing rivers, researchers say
August 3, 2020
University of British Columbia
"A large number of the valley networks scarring Mars's surface were carved by water melting beneath glacial ice, not by free-flowing rivers as previously thought, according to new research. The findings effectively throw cold water on the dominant 'warm and wet ancient Mars' hypothesis, which postulates that rivers, rainfall and oceans once existed on the red planet."
I have used the following NASA activites and have found them all to be extremely useful for middle level science:
FAVORITE: How does flowing water shape a planet's surface? https://mars.nasa.gov/education/modules/webpages/activity5.htm
Module on Mars: https://mars.nasa.gov/education/modules/gcact0.pdf (there is a great section on how the flow of groundwater affect a planet's surface.)
Is there water on Mars? https://mars.nasa.gov/education/modules/webpages/module4.htm
The Grand Canyon of Mars and how it Formed: https://mars.nasa.gov/education/modules/webpages/module3.htm (especially the 2nd activity called: How does the flow of ground water affect a planet's surface?"
Use the articles to perk interest and get some discussion, and then plug in these fantastic activities.