Of the 3 main classes of rock, this one is further divided into plutonic & volcanic types
The IRAS telescope, which discovered 5 comets, made its observations in this spectrum of light
This branch of medicine is concerned with the care & diseases of the elderly
Electrum is an alloy of these 2 precious metals
Nickname of oil field firefighter Paul Adair
The book lists 2 of these solar phenomena, including a total one
It's the chief wool-producing state, & we're not pulling the wool over your buckeyes
On Nov. 14, 1867 there were meteor showers & this volcano near Naples erupted
There are about 1,250,000 free & accepted ones of these around the world, including 100,000 in Scotland
This U.S. president earns a big $25,000 a year