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|| A | B | C | D | E | F | G | H | I | J | K | L | M ||
|| N |O | P | Q | R | S | T | U | V | W | X | Y | Z ||
ASTRONAUT ASTRONOMER ATMOSPHERE AXIS ATOM
BLACK HOLE BLUR BIG BANG THEORY BOLT BOULDER BRITTLE
BULGE
COLLAPSE COLLISION COMET COSMONAUT CRATER
DETECT
ENERGY ENVIRONMENT EXPAND
FUEL
GAMMA-RAY GAP GAS GRAVITY GRAVITATIONAL PULL
LUNAR MODULE LUNAR ROVER
MATTER METEOR METEORITE METEOROID MODULE MYTHOLOGY
NUCLEAR FUSION
PAYLOAD PHYSICIST PHYSICS PLAINS POLE
RE-ENTRY REFLECT REUSABLE REVOLVE ROTATE
SCATTERED SOLAR SOLAR FLARE SOLAR WIND SPACE PROBE SPECTROGRAPH SPECTROSCOPE SUNSPOT SUPERNOVA
UNIVERSE
VEHICLE VISIBLE VOLCANO
WEIGHTLESS
A
ASTEROID
A rocky space
object that can be a few feet wide to several hundred miles wide. Most asteroids
in our solar system orbit in a belt between Mars and Jupiter.
A person who travels in space.
Scientist who observes and
studies planets, stars, and galaxies.
All the gases which surround a
star, like our Sun, or a planet, like our Earth.
An imaginary straight line around which an
object spins.
The tiny building block that makes up
everything.
B
BACTERIA
Living things
that have only one cell and are so small they can only be seen with a
microscope.
An invisible object in outer
space formed when a massive star collapses from its own gravity. A black hole
has such a strong pull of gravity that not even light can escape from it.
To make less clear, to run together.
A theory that says the
Universe began with a super-powerful explosion.
A flash of lightning.
A very large piece of rock.
Easy to break or crack.
To swell or stick out; the part that swells
or sticks out.
C
CELSIUS
A metric
temperature scale in which water freezes at 0 degrees and boils at 100 degrees.
To fall down or fall to pieces.
A crash or forceful joining
together.
A big ball of dirty ice and snow in outer
space.
An astronaut from the former Soviet
Union or present day Russia.
A hole caused by an object hitting the
surface of a planet or moon.
D
DEBRIS
Broken, scattered
remains; rubble; pieces of rubbish or litter.
To discover something which is hidden or
unknown.
E
ELLIPTICAL
Shaped like
an egg that has ends which are equal.
The power to do work.
Everything that surrounds
anything.
To make larger.
F
FRAGMENT
A broken piece
of something.
Anything that is burned to give heat or
power.
G
GALAXY
A giant collection
of gas, dust, and millions or billions of stars.
An invisible form of energy that is
given off by atoms.
An empty space.
A form of matter which is not a liquid or a
solid. A gas will spread out to fill up all of the space that is open to it.
The invisible force between objects
that makes objects attract each other.
The attraction
that one object has for another object due to the invisible force of gravity.
H
HURRICANE
A very, very
strong windstorm where the wind blows in circles at more than 46 kilometers per
hour. Heavy rains often come with the winds.
I
J
K
KILOMETER
1,000 meters.
A kilometer equals 0.6214 miles.
L
LIGHT YEAR
The distance
light can travel in one year, which is 9,500,000,000,000 kilometers.
The section of the
Apollo spacecraft designed to land on the Moon.
The car-like vehicle used by
Apollo astronauts while exploring the Moon's surface.
M
MASS
The amount of matter in
an object.
What all things are made of.
An object from space that becomes glowing
hot when it passes into Earth's atmosphere.
A piece of stone or metal from
space that falls to Earth's surface.
A piece of stone or metal that
travels in outer space.
A part of a set that can be arranged
together in different ways.
Old stories that usually explain
how something came to be.
N
NASA
The National Aeronautics
and Space Administration which is in charge of all space programs for the United
States.
A process where atoms are
joined and tremendous amounts of energy are released.
O
ORBIT
The path followed by
an object in space as it goes around another object; to travel around another
object in a single path.
P
PARTICLE
A very, very
tiny piece of matter such as an electron, proton, or neutron found inside of an
atom.
Cargo which is carried on the Space
Shuttle.
A person who studies physics.
The study of how objects (from the very
tiny to the very big) behave.
Large pieces of flat land.
The point at either end of the invisible line
known as the axis. Planets have a south pole and a north pole.
Q
R
RADIO WAVE
A type of
energy that is made by charged particles such as electrons moving back and
forth.
The return of a spacecraft into
Earth's atmosphere.
To throw back light, heat, or sound.
Can be used again.
To move in an orbit or circle around
something.
To turn around a center point, or axis,
like a wheel turns on a bicycle.
S
SATELLITE
An object that
moves around a larger object. There are natural satellites such as moons and
there are man-made satellites such as the Hubble Space Telescope.
Going in many different directions.
Having to do with the Sun.
A storm or eruption of hot
gases on the Sun.
Streams of gas particles flowing
out from the Sun.
An unmanned research craft sent
into space.
The picture produced by a
spectroscope.
An instrument that breaks up
the white light from a star into its different colors.
A dark area on the Sun's surface that
is cooler than the area around it. Sunspots are caused by magnetic storms on the
Sun.
An explosion of a star that causes
the star to shine millions of times brighter than usual.
T
TELESCOPE
A device which
creates a larger image of a far away object.
U
ULTRAVIOLET RAY
An
invisible form of energy which is given off by the Sun. Ultraviolet rays cause
people to get sunburned.
The huge space which contains all of
the matter and energy in existence.
V
VALLEY
A piece of low land
lying between hills or mountains.
Something used to carry people and
things over land or in space.
Able to be seen.
An opening in a planet's surface
through which hot liquid rock is thrown up.
W
WATER VAPOR
Water
which is in the form of a gas.
Having little or no weight; not
feeling the effects of gravity.
X
X-RAY
An invisible form of
energy which can go through most solid objects.
Y
Z
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