Solar System

Question 1

Orbit

Answer 1

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

Question 2

Tide

Answer 2

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

Question 3

Solar system

Answer 3

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

Question 4

Galaxy

Answer 4

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

Question 5

Universe

Answer 5

Space and all the matter and energy in it

Question 6

Satellite

Answer 6

An object that orbits a more massive object

Question 7

Impact crater

Answer 7

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

Question 8

Axis of rotation

Answer 8

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

Question 9

Revolution

Answer 9

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

Question 10

Season

Answer 10

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

Question 11

Equinox

Answer 11

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

Question 12

Solstice

Answer 12

In an orbit, a position and time during which one hemisphere receives the maximum sunlight or darkness

Question 13

Mare

Answer 13

A large dark plain of solidified lava on the moon

Question 14

Eclipse

Answer 14

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

Question 15

Umbra

Answer 15

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

Question 16

Penumbra

Answer 16

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

Question 17

Astronomical unit

Answer 17

Average distance from the sun which is 93,000,000 miles

Question 18

Ellipse

Answer 18

An oval or flattened circle

Question 19

Terrestrial planet

Answer 19

A planet that has a rocky surface

Question 20

Gas giant

Answer 20

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

Question 21

Asteroid

Answer 21

A small solid rocky body that orbits the sun

Question 22

Comet

Answer 22

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

Question 23

Meteor

Answer 23

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

Question 24

Meteorite

Answer 24

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

Question 25

Geocentric

Answer 25

Earth centered theory of the solar system

Question 26

Heliocentric

Answer 26

A sun centered theory of the universe

Question 27

Gravity

Answer 27

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

Question 28

Waxing

Answer 28

The gradual increase in the illuminated surface of the moon

Question 29

Waning

Answer 29

The gradual decrease in the illuminated surface of the moon

Question 30

Gibbous

Answer 30

More than half but less then fully illuminated

Question 31

Crescent moon

Answer 31

The illuminated surface is less than a quarter illuminated

Question 32

Full moon

Answer 32

The entire surface of the moon is illuminated

Question 33

New moon

Answer 33

The entire surface of the moon is not illuminated

Question 34

Half moon

Answer 34

Half of the moon is illuminated