Space

Question 1

Solar system

Answer 1

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

Question 2

Galaxy

Answer 2

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

Question 3

Universe

Answer 3

Space and all the matter and in it

Question 4

Orbit

Answer 4

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

Question 5

Satellite

Answer 5

an artificial body placed in orbit around the earth or moon or another planet in order to collect information or for communication.

Question 6

Impact crater

Answer 6

a crater on a planet or moon caused by the impact of a meteorite or other object, typically circular with a raised rim.

Question 7

Axis of rotation

Answer 7

An imaginary line about which a turning body , such as Earth rotates

Question 8

Revolution

Answer 8

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

Question 9

Season

Answer 9

each of the four divisions of the year (spring, summer, autumn, and winter) marked by particular weather patterns and daylight hours, resulting from the earth’s changing position with regard to the sun.

Question 10

Equinox

Answer 10

the time or date (twice each year) at which the sun crosses the celestial equator, when day and night are of equal length (about September 22 and March 20).

Question 11

Solstice

Answer 11

either of the two times in the year, the summer solstice and the winter solstice, when the sun reaches its highest or lowest point in the sky at noon, marked by the longest and shortest days.

Question 12

Mare

Answer 12

A large dark plain of solidified lava on the moon.

Question 13

Eclipse

Answer 13

An event during which one objects in cast a shadow into another

Question 14

Umbra

Answer 14

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

Question 15

Penumbra

Answer 15

A region of lighter shadow that may surround an umbra

Question 16

Astronomical unit (AU)

Answer 16

Earth’s average distance from the sun, approximately mately 150 million kilometers( 93 million miles)

Question 17

Ellipse

Answer 17

An oval or flattened circle

Question 18

terrestrial plants

Answer 18

Earth or a planet similar to earth that has a rocky surface

Question 19

gas giant

Answer 19

a large planet of relatively low density consisting predominantly of hydrogen and helium, such as Jupiter, Saturn, Uranus, or Neptune.

Question 20

Asteroids

Answer 20

a small rocky body orbiting the sun.

Question 21

Comet

Answer 21

a celestial object consisting of a nucleus of ice and dust and, when near the sun, a “tail” of gas and dust particles pointing away from the sun.

Question 22

Meteor

Answer 22

a small body of matter from outer space that enters the earth’s atmosphere,

Question 23

Meteorite

Answer 23

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

Question 24

Geocentric

Answer 24

having or representing the earth as the center, as in former astronomical systems.

Question 25

Heliocentric

Answer 25

having or representing the sun as the center, as in the accepted astronomical model of the solar system.

Question 26

Gravity

Answer 26

the force that attracts a body toward the center of the earth, or toward any other physical body having mass.

Question 27

Tide

Answer 27

the alternate rising and falling of the sea, usually twice in each lunar day at a particular place, due to the attraction of the moon and sun.

Question 28

Waxing

Answer 28

the moon at any time after new moon and before full moon, so called because its illuminated area is increasing.

Question 29

Waning

Answer 29

the moon at any time after full moon and before new moon (so called because its illuminated area is decreasing).

Question 30

Gibbous

Answer 30

A waxing gibbous moon appears high in the east at sunset. It's more than half-lighted, but less than full.

Question 31

Crescent

Answer 31

The word crescent is derived etymologically from the present participle of the Latin verb crescere "to grow", thus meaning "waxing" or "increasing", and so was originally applied to the form of the waxing moon (luna crescens). The English word is now commonly used to refer to either the waxing or waning shape.

Question 32

Full moon

Answer 32

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

Question 33

New moon

Answer 33

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.

Question 34

Quarter moon

Answer 34

Quarter moon synonyms, Quarter moon pronunciation, Quarter moon translation, English