
The magnetic north pole moves about 10 km a year. Why do we need to know where it is? It is how map systems in phones and cars work.
What Do You Think? What is the difference between the two north poles?
Photo Credit: oktay sonmez/Alamy Stock Photo

The magnetic north pole moves about 10 km a year. Why do we need to know where it is? It is how map systems in phones and cars work.
What Do You Think? What is the difference between the two north poles?
Photo Credit: oktay sonmez/Alamy Stock Photo
Many people celebrate holidays in December. Holidays are good times … read more
February is Black History Month. Let’s honor three African Americans … read more
Dolphins make many sounds. They make clicks, whistles, and squeals. … read more
© 2026 McGraw-Hill Education. All Rights Reserved.