1.
– J. Robert Oppenheimer, the scientific director of the project.
2.
– General Leslie Groves, the military leader in charge of the project.
3.
– The process of splitting atoms to release enormous energy.
4.
– Refers to the type of bomb developed during the project.
5.
Alamos – The secret laboratory site in New Mexico where the bombs were designed.
6.
– The code name for the first successful nuclear test in July 1945.
7.
– The radioactive element used in the "Little Boy" bomb.
8.
– The radioactive element used in the "Fat Man" bomb.
9.
Ridge – A major project site in Tennessee used for uranium enrichment.
10.
– The site in Washington state where plutonium was produced.
11.
Boy – The code name for the uranium bomb dropped on Hiroshima.
12.
Man – The code name for the plutonium bomb dropped on Nagasaki.
13.
– The nickname given to the first experimental nuclear device.
14.
– A defining characteristic of the top-secret government program.
15.
– The energy and particles released by nuclear reactions.
