Rocks become smoother as rough and jagged edges break off. Students run a model of this process by shaking sugar cubes and gravel together in a plastic container. The sugar cubes become smoother as their edges break off when they collide in the container.
By Diane Alter, Contributing Writer, Money Morning -. Gold prices today (Friday) climbed $18.90, or $1.66%, at $1,158.90, which was a six-week high for the precious metal. Gold prices today climbed after the release of the latest Federal Open Market Committee (FOMC) minutes.
Spot Gold Price: 1,313.00 / Ounce | Spot Silver Price: 1,313.00 / Ounce Sep 03, 2017 at 06:45 NY Time. Save the values of the calculator to a cookie on your computer. Note: Please wait 60 seconds for updates to the calculators to apply. Display the values of the calculator in page header for quick reference.