Shh! It's a Secret! - Does your head still hurt from trying to figure out the Playfair cipher? Good! Give your brain a break and try this activity for fun. It is a simple substitution code. It can be done without using the letter frequency chart. Look for short 1-3 letter words and look for patterns.
Earth Day, Every Day - None
Open Research - Put the finishing touches on your projects. We are sharing them this week!