General Information

People & Discoveries
read about scientists who were pioneers in the study of radiation

History
follow the progress of our understanding of radioactive substances

Careers
who does what in the field of radiation protection

Links
related information

Recent Additions
summary of new items added to the site

Technical Information

What is Radiation?
why some atoms give off radiation

Types of Radiation
the various particles that radioactive molecules emit

Symbols
learn to recognize these warning signs

Calculate Your Dose
radiation is common in our environment; how big is your dose?

Fun Stuff

Word Search
find radiation terms among these letters

Crossword
use the terms you've learned to work this crossword puzzle

Take a Quiz
show off what you've just learned with this quiz