This keeps everyone on the earth. If not, we'd spin out into space!
What is gravity?
What is oxygen.
This guy is pretty famous, he's the first president of the United States of America!
This river is the longest in the world!
What is the Nile River?
This is the study of stars and planets.
What is Astrology?
This is the process of turning liquid into a solid. So cool!
What is freezing?
This person wrote the Declaration of Independence.
Who is Thomas Jefferson?
This is the person that created the telephone.
Who is Alexander Graham Bell?
This planet has stunning rings. Beyonce would be jealous!
What is Saturn?
This is the largest organ in the body.
What is skin?
This person painted some cool pictures. Specifically, "The Mona Lisa".
Who is Leonardo di Vinci?
What is the 4th of July?
This far out planet is no longer considered a planet! How sad!
What is Pluto?
This is what humans breathe out. Hopefully it doesn't stink!
What is carbon dioxide?
This person is known for his work in the Civil Rights Movement. He had a very big dream.
Who is Martin Luther King, Jr.
What is the Milky Way?
This energy comes from the sun.
What is Solar Energy!
This is the study of rocks and soil.
What is geology?
This document begins, "We the People..."
The United States Constitution.
These aren't dinner plates but the plates that land masses sit on.
What are tectonic plates?