This printable crossword puzzle on the topic of US History (General) has 10 clues. Answers range from 4 to 11 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
First H-Bomb US had tested
A bomb that has a higher energy energy that atomic bomb
Study of atoms
The era in which atomic weapons have been used, begining in 1945 with the first use of the atomic bomb
The nuclear testing was at ______________
Death, on a large scale
Causes various health diseases
A competition between nations to achieve the more powerful weapons arsenal
Protection in case of nuclear attacks
First Bomb dropped on Hiroshima on August 6, 1945