Manhattan Project National Historical Park Hanford, Washington B Reactor Hanford Unit National Historic Landmark Junior Ranger Book

The Manhattan Project National Historical Park is a partnership between the National Park Service and the Department of Energy that tells the stories of top-secret sites in Los Alamos, NM; Hanford, WA; and Oak Ridge, TN that were created as part of the Manhattan Project during World War II. Aimed at developing an atomic weapon before Nazi Germany, the Manhattan Project successfully produced two of the most powerful weapons the world had ever seen, helping bring an end to the war and ushering in the Atomic Age.

This handbook will help you discover why the Manhattan Project National Historical Park is one of these special places. Allow about 3 hours to earn a Junior Ranger badge. Activities in this Junior Ranger book can be completed by taking a tour of the B Reactor National Historic Landmark. 

1st Activity Page - The National Park Service Arrowhead

2nd Activity Page - Did You Know?

3rd Activity Page - Manhattan Project National Historical Park Kids in Action Challenge:

4th Activity Page - Secret City Challenge

5th Activity Page - Keeping "Mum"

6th Activity Page - What was so important about the number 92 on the Periodic Table ?

7th Activity Page - Who were the Calutron Girls?

8th Activity Page - Describe what a day in a kid’s life was like in the Secret City in 1945.

9th Activity Page - Manhattan Project NHP Hidden Word Search

Junior Ranger Pledge

Children and parents interested in world history and the beginning of the nuclear age, grade school teachers and advisers.