Elements Challenge

Updated: May 12, 2008

By Stephanie L. Smith

Know what puts the H in H₂O? OK, smart guy. Take this quiz and prove it.

Even if you're not in chemistry, you still deserve a little weird science. You'll be asked to match symbols from the periodic table with their elements.

Hint: Here's an interactive periodic table of the elements and more FREE science homework help from the Dept. of Education.

Source: ChemicalElements.com