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NASA’s Picture Dictionary

NASA

National Aeronautics and Space Administration

NASA Logo
NASA became a government agency in 1958.
NASA

Sentences:

NASA studies airplanes, Earth, space and space travel.
I want to be an engineer and work at NASA when I get older.

Related Links:
NASA for Students (Grades K-4)
NASA for Students (Grades 5-8)
What Is NASA? (Grades K-4)
What Is NASA? (Grades 5-8)
NASA Kids’ Club

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Neutral Buoyancy

The state of keeping a person or thing under water from sinking or floating, using weights or floats.

Two astronauts train for spacewalking while going underwater in the Neutral Buoyancy Laboratory
Two astronauts work in the Neutral Buoyancy Laboratory near NASA’s Johnson Space Center in Houston, Texas.
NASA

Sentences:

NASA’s Neutral Buoyancy Laboratory is a pool filled with over a million gallons of water.

Working in the Neutral Buoyancy Laboratory helps astronauts train for spacewalks.

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North Pole

The northernmost point of Earth’s axis.

Drawing of Earth with a small circle representing the path the North Pole traces over 26,000 years
When Earth rotates, the North Pole follows a circular path.
NASA

Sentences:
The North Pole is at the top of Earth.

The area around the North Pole is called the Arctic Circle.

Related Links:
Which pole is colder?
Auroras Over the North Pole and the South Pole
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Nozzle

A short, narrow tube that directs a flow or spray of liquid or gas.

Nozzle on a special engine mounted on a large jet
NASA studies jet engine nozzles. The nozzles can help jets be more quiet.
NASA

Sentences:

Flames came out  the nozzles of the solid rocket boosters.
He pointed the nozzle of the garden hose toward the flowers.

Related Links:
Parts of a Jet Engine
A Jet Engine Nozzle on a Jet
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