How the Earth Was Made- Forging America's Gold
- Due Sep 15, 2021 at 11:59pm
- Points 25
- Questions 25
- Time Limit None
Instructions
Forging America's Gold
Scientists believe all the gold on Earth formed in supernovae and neutron star collisions that occurred before the solar system formed. In these events, gold formed during the r-process. Gold sank to the Earth's core during the planet's formation. It's only accessible today because of asteroid bombardment.
In this video, you will take a look at how gold, a scarce element left behind by the explosions of supernovas, was collected by the forming Earth and how its geologic processes concentrated it in various places throughout the globe.
Directions:
1) The video and questions are provided in the quiz.
2) To begin this activity, click "Take the Quiz" below.
3) There is no time limit on this assignment and therefore does not have to be completed in one sitting. Do not submit the assignment until you have completed it as there will be no re-opening of the assignment.
4) You only get one (1) attempt at this assignment.