1990s
This Seattle-based band released Ten in 1991.
Pearl Jam
Mikhail Gorbachev introduced glasnost and perestroika during this decade to reform the Soviet Union.
The 1980s
What term describes the smallest repeating unit of a crystal lattice?
Unit Cell
What group of symbiotic algae lives within coral tissue and provides energy via photosynthesis?
Zooxanthellae
A chemistry teacher’s favorite musical note is this.
Re
In 1996, this sheep became the first mammal cloned from an adult somatic cell.
Dolly
MTV aired its first music video in 1981, titled Video Killed the Radio Star, by this band.
The Buggles
In ionic solids, what electrostatic energy term describes the strength holding the lattice together?
Lattice Energy
What nitrogen‑cycle process converts ammonia into nitrite in marine tanks?
Nitrification
A marine biologist who tells bad jokes could be accused of this.
Being “krill‑less” (or telling corny sea jokes)
The 1994 North American Free Trade Agreement primarily involved the U.S., Canada, and this country.
Mexico
What U.S. federal agency was established in response to the 1980 Love Canal disaster?
The EPA
What band‑theory term refers to the energy range electrons cannot occupy?
Band gap
What parameter, measured in dKH or meq/L, reflects a reef tank’s buffering capacity?
Alkalinity
What do you call an aquarium that’s always running late?
A “tardy‑um” tank
What Supreme Court case in 1995 limited Congress’s power under the Commerce Clause by striking down the Gun-Free School Zones Act?
United States v. Lopez
Released in 1982, this film featured the first extensive use of CGI to portray a major character.
Tron
DAILY DOUBLE: This type of semiconductor is created by doping silicon with group V elements such as phosphorus.
n-type
DAILY DOUBLE: What calcium carbonate crystal form do most reef‑building corals deposit?
Daily Double: Aragonite
An electron that’s lost its groove might be said to have lost its what?
Spin
In 1998, this startup company was incorporated in a Menlo Park garage and initially called “BackRub.”
This 1984 novel by William Gibson helped popularize the term “cyberspace.”
Neuromancer
What crystal defect involves a missing atom from its lattice site?
Frenkel defect
In SPS‑dominant systems, what automated method continuously replaces evaporated water to stabilize salinity and calcium chemistry?
Automatic Top‑Off (ATO) system
This punny phrase would describe an indecisive chemist working with sodium chloride.
“NaCl about it”