Explains how sedimentary rocks are created and is helpful to gain a deeper understanding of the topic.
Reviews factors that determine sediments and sedimentary rock materials and composition.
Connect your daily life experiences with specific points in a reading using a Double Entry Diary.
The Paleozoic rocks of the Grand Canyon show that shallow seas covered the land four times.
A rock drilled by the Curiosity Rover in Yellowknife Bay on Mars shows that Gale Crater was an ancient lake. The lake would have been habitable by chemlithautotrophs or other extremophiles. Mars exploration will next look for evidence of life.