The Secret History of Symbols and Codes: Vocabulary

1. Ancient Egyptians used pictures called _______ to represent words and ideas in their writing system.

1. A _______ is a hidden message that needs to be decoded, often used for secret communication.

1. Codes can be created by replacing letters with different symbols, a process called _______.

1. People who study and break codes are called _______ .

1. Early sailors used signals with flags, called _______ , to communicate with other ships.

1. Morse code uses a series of dots and dashes, known as _______ , to represent letters and numbers.

1. Some symbols have a _______ meaning, like a red rose representing love.

1. Understanding _______ symbols, like a skull and crossbones for poison, can keep us safe.

1. Ancient civilizations may have used _______ , like constellations in the night sky, to tell stories and share information.

1. Learning about the history of symbols and codes can help us appreciate the _______ ways humans have communicated throughout history.