Earth
Air and Space
Human Body
Oceans
Feats of Engineering
100
Commonly abbreviated "GPS", and used to navigate Earth
What is Global Positioning System?
100
The force that allows aircraft to maintain flight.
What is lift?
100
The part of the body that coordinates actions and transmits signals between different body parts.
What is the nervous system?
100
The smallest ocean on Earth.
What is the Arctic Ocean?
100
A space based structure currently housing 6 astronauts.
What is the International Space Station?
200
The largest desert on Earth.
What is Antarctica?
200
The gravitationally curved path of an object around a point in space.
What is orbit?
200
The longest bone in the human body.
What is the femur?
200
The deepest part of the Mariana Trench.
What is the Challenger Deep?
200
The first person to break the sound barrier.
Who is Chuck Yeager?
300
A spring characterized by intermittent discharge of water accompanied by a vapor phase.
What is a geyser?
300
The lowest point of a spacecraft's orbit.
What is periapsis?
300
Found in most animals, they function to produce force and motion.
What are muscles?
300
The force that allows objects to float.
What is buoyancy?
300
It connects the Pacific and Atlantic oceans across a narrow stretch of land.
What is the Panama Canal?
400
The directions that correspond to positive GPS coordinate values.
What are North and East?
400
The direction of the velocity vector of a spacecraft.
What is prograde?
400
A thin, circular structure in the eye responsible for controlling the size of the pupil.
What is the iris?
400
The dissolved salt content of a body of water.
What is salinity?
400
Currently the tallest building in the world.
What is the Burj Khalifa?
500
The longest mountain range in the world.
What is the mid-oceanic ridge system?
500
The direction opposite of the current velocity vector of a spacecraft.
What is retrograde?
500
A flexible but inelastic cord of strong tissue attaching a muscle to a bone.
What is a tendon?
500
The deepest oceanic zone.
What is the hadalpelagic?
500
The first American in space.
Who is Alan Shepard?
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