
Morse code is a way to communicate. The code was invented by Samuel Morse. Morse code uses symbols. The symbols are dots and dashes. Each letter of the alphabet is a combination of dots and dashes.
Photo Credit: Ioana Martalogu/Alamy Stock Photo
Have you seen one of these? Do you call it … read more
What does it mean to vote? Who can vote? Imagine … read more
Look at this bridge! This bridge helps people cross a river. It … read more
© 2026 McGraw-Hill Education. All Rights Reserved.