Riddles
What is always in front of you but can't be seen?
The future.
All matter is composed up of these, which can be organized by characteristics into the periodic table
What are elements
A massacre of colonists by British troops in this U.S. city helped start the Revolutionary War.
What is Boston
This is the area of science Leonard and Sheldon specialize in.
What is physics
The fourth planet from the sun
What is Mars
What has to be broken before you can use it?
An egg
This is the powerhouse of the cell
What is mitochondria
In prehistoric times, it is believed the continents were one continuous land mass, named this.
What is pangea
This is the only character in the Big Bang Theory who's actor/actress actually has a PhD
Who is Amy
The term for a moon, planet, or machine that orbits a planet or star.
What is a satellite
A man shaves many times during the day, but at the end of the day, he still has a beard. How is this possible?
He's a barber
This is a simple machine that can make lifting heavy weights easier by changing the direction of the force.
What is a pulley
This bacterial disease killed an estimated 25 million people when it spread across Europe and Asia.
What is the Black Plague
What is 16
What is dark matter
What has 13 hearts, but no other organs?
A deck of playing cards
Though not harmful, visible light is a form of this.
Built in 1961 and destroyed in 1989, this structure separated East and West Germany.
What is the Berlin Wall
This is Sheldon's favorite catch phrase for when something goes right.
What is Bazinga
In 1608, Hans Lippershey, an eyeglass maker, was the first to create this device.
What is a telescope
An Uber driver is going the wrong way down a one-way street. He passes five policemen along the way, none of which stop him. Why not?
He was walking, not driving
Animals that have no backbone are referred to as this.
What are invertebrates
The first state to ratify the U.S. Constitution
What is Delaware
Penny's character was originally going to be named this.
What is Katie
In 1958, as a result of the growing space race, this group was created to "expand human knowledge of phenomena in the atmosphere and space."
What is NASA