Send your friends a "special delivery" message -- in secret code! With your own private code, even that top-secret note you gave your friend after class will be safe from "enemy" eyes.
Codes are also a great way to protect your diary entries from snooping siblings. So grab a pencil and a piece of paper -- and get started.
What You'll Need
How to Play "Special Delivery"
Step 1: The simplest way to make up a code is to assign each letter of the alphabet a certain number. You won't want the obvious -- A=1, B=2, C=3 -- that's much too easy to figure out.
Step 2: Instead, look at this code, for example: A=1, B=5, C=9, D=13, E=17, and so on. Do you see how it works? Each letter takes a number that's 4 plus the number of the previous letter. Just be sure to keep a copy of your code -- and give one to your friend!
There's no secret to measuring the weight of different objects, but it still can be intriguing! Keep reading to learn about this activity.