
Earth is covered with water. Most of the water is in oceans. Ocean water is salty. Some water is in lakes and rivers. Most lakes and rivers are not salty. They have fresh water.
Photo Credit: Studio Photogram/Alamy Stock Photo
January 20 is MLK Day. On this day we celebrate … read more
What color are your eyes? Eye color is a trait, … read more
Mountains are beautiful! Some people climb mountains. It is an … read more
© 2025 McGraw-Hill Education. All Rights Reserved.