Space Vocab Flashcards

1
Q

METEORITE

A

A small object from outer space that passes through earths atmosphere and reaches the surface

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2
Q

UNIVERSE

A

Space and all the matter and energy in it

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3
Q

QUARTER MOON

A

half of the moon is illuminated

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4
Q

NEW MOON

A

The entire surface of the moon is NOT Illuminated

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5
Q

ASTRONOMICAL UNITS

A

Average distance from the sun which is 93 million miles

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6
Q

REVOLUTION

A

The motion of one body around another, such as the Earth in its orbit around the sun

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7
Q

CRESCENT MOON

A

Illuminated surface is less than a quarter illuminated

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8
Q

PENUMBRA

A

A region of lighter shadow that may surround a Dark central region

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9
Q

MARE

A

A large dark plain of solidified lava in the moon

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10
Q

GALAXY

A

Millions of billions of stars held together in a group by their own gravity

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11
Q

UMBRA

A

The Dark central region of a shadow such as the cone of complete shadow cast by an object

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12
Q

COMET

A

A body that produces a coma of gas and dust, a small icy body that orbits the sun

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13
Q

ECLIPSE

A

An event during which one object in space casts a shadow onto another

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14
Q

GIBBOUS MOON

A

More than half but less than fully illuminated

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15
Q

ORBIT

A

The path of an object in space as it moves around another object in space due to gravity

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16
Q

A sun centered theory of the universe

A

HELIOCENTRIC

17
Q

TIDES

A

The rise and fall of the ocean caused by the gravitational pull of the moon and sun

18
Q

WANING

A

The gradual decrease in the illuminated surface of the moon

19
Q

GEOCENTRIC THEORY

A

Earth centered theory of the solar system

20
Q

ELLIPSE

A

An oval or flattened circle

21
Q

SEASON

A

One of a pattern of temperature changes and other weather trends over the coarse of the year

22
Q

GRAVITY

A

The force that objects exert on one another because of their mass

23
Q

IMPACT CRATER

A

A round pit left behind a surface of a planet after a smaller object strikes the surface

24
Q

SOLAR SYSTEM

A

The sun and its family of orbiting planets and moons and other objects

25
Q

GAS GIANT

A

A large planet that consists mostly of gases in a dense form

26
Q

FULL MOON

A

The entire surface of the moon is illuminated

27
Q

SATELLITE

A

An object that orbits a more massive object

28
Q

AXIS ROTATION

A

An imaginary line about which a turning body such as earth rotates

29
Q

METEORITE

A

A brief streak of light produced by a particle entering earths atmosphere at high speed

30
Q

ASTEROID

A

A small solid rocky body that orbits the sun

31
Q

TERRESTRIAL PLANET

A

Planet that has a rocky surface

32
Q

EQUINOX

A

In a orbit a position and time in which sun shines equally on both hemispheres

33
Q

SOLSTICE

A

In a orbit a position and time during which one hemisphere receives the maximum sunlight

34
Q

WAXING

A

The gradual increase of the illuminated surface of the moon