Are you Smarter than a third grader?
Are you Smarter than a fifth grader?
Are you Smarter than a eighth grader?
100
What are the primary colors
What are red, blue, and yellow
100
The name of our galaxy
What is the Milky Way?
100
Who was the first person to step on the moon?
Neil Armstrong
200
Who was the first president of the US?
Who was George Washington?
200
This man discovered gravity when an apple fell on his head
Who is Isaac Newton?
200
What are the 4 states of matter?
Solid, Liquid, Gas, Plasma 
300
The name of the supercontinent when all land masses were one big chunk
What is pangea?
300
The chemical symbols for water and iron
What is H2O and Fe?
300
5 Steps of the Scientific Method
Question, Research, Hypothesis, Test, Analyze, Conclude
400
The tallest animal in the world
What is a giraffe? 
400
Which President died in 1945, leading to his Vice President Harry S. Truman's Presidency?
FDR
400
How many bones do adult humans have? get within 5
206
500
The longest river in the world
What is the Nile River?
500
The human body's largest organ
What is the skin?
500
What are the 7 wonders of the world?
Great Wall of China
Petra
Colosseum
Chichén Itzá
Machu Picchu
Taj Mahal
Christ the Redeemer