Space Vocabulary

Question 1

The circular path of an object as it revolves around another object.

Answer 1

Orbit

Question 2

A system that revolve around a star.

Answer 2

Solar system

Question 3

Millions or billions of stars held together in a group by their own galaxy.

Answer 3

Galaxy

Question 4

Space and all the matter and energy around it.

Answer 4

Universe

Question 5

An object that revolves around another object in space.

Answer 5

Satellite

Question 6

A round pit left behind on surface of a planet or other body in space after a smaller object strikes the surface.

Answer 6

Impact Crater

Question 7

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

Answer 7

Axis of Rotation

Question 8

The movement of one object around a center or another object.

Answer 8

Revolution

Question 9

A period of the year determined by the position of Earth as it revolves around the sun.

Answer 9

Season

Question 10

In an orbit, a position and time in which sunlight shines equally on the Northern and Southern Hemispheres.

Answer 10

Equinox

Question 11

In an orbit, a position and time during which one of the hemisphere receives its maximum sunlight while the other doesn’t.

Answer 11

Solstice

Question 12

A large, dark plain of solidified lava on the moon.

Answer 12

Mare

Question 13

The dark region of a shadow, such as the cone of complete shadow cast by an object.

Answer 13

Umbra

Question 14

A lighter region of a shadow that may surround a dark central region.

Answer 14

Penumbra

Question 15

a unit of measurement equal to 149.6 million kilometers, the mean distance from the center of the earth to the center of the sun.

Answer 15

Astronomical Unit

Question 16

An oval shaped orbit.

Answer 16

Ellipse

Question 17

A planet that has a rocky surface.

Answer 17

Terrestrial Planet

Question 18

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

Answer 18

Gas Gaint

Question 19

A small rocky body orbiting the sun.

Answer 19

Asteroid

Question 20

A brief streak of light produced by a particle entering earth’s atmosphere at high speeds.

Answer 20

Comet

Question 21

A small body of matter from outer space that enters the earth’s atmosphere.

Answer 21

Meteor

Question 22

A meteor that survives its passage through the earth’s atmosphere such that part of it strikes the ground.

Answer 22

Meteorite

Question 23

Earth centered theory of the solar system.

Answer 23

Geocentric

Question 24

Sun centered theory of the center of the solar system.

Answer 24

Heliocentric

Question 25

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

Answer 25

Gravity

Question 26

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

Answer 26

Tide

Question 27

The gradual increase of the illuminated surface of the moon.

Answer 27

Waxing

Question 28

The gradual decrease in the illuminated surface of the moon.

Answer 28

Wanig

Question 29

In between a half-moon but less than a full moon.

Answer 29

Gibbous Moon

Question 30

A thin, curved shape that’s thicker in the middle and tapers to thin points at each end.

Answer 30

Crescent Moon

Question 31

The phase of the moon in which its whole disk is illuminated.

Answer 31

Full Moon

Question 32

The phase of the moon when it is in conjunction with the sun and invisible from earth, or shortly thereafter when it appears as a slender crescent.

Answer 32

New Moon

Question 33

The moon is less than one-half illuminated by the sun but less than one quarter illuminated.

Answer 33

Quarter Moon