Solar System

Question 1

Orbit

Answer 1

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

Question 2

Solar System

Answer 2

A system of objects that revolve around a star

Question 3

Galaxy

Answer 3

a group of solar systems, dust, and gas held together by gravity; our solar system is part of the Milky Way galaxy

Question 4

Universe

Answer 4

everything that exists in, on and around the Earth

Question 5

Satellite

Answer 5

a natural or artificial object that revolves around another object in space

Question 6

Impact Crater

Answer 6

a large, circular pit in the surface of a planet or other body in space usually formed when two bodies in space collide

Question 7

Rotation

Answer 7

the spinning of a celestial body, such as a planet, around an axis

Question 8

Revolution

Answer 8

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

Question 9

Season

Answer 9

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

Question 10

Equinox

Answer 10

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

Question 11

Solstice

Answer 11

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

Question 12

Mare

Answer 12

are large, dark, basaltic plains on Earth’s Moon, formed by ancient volcanic eruptions.

Question 13

Eclipse

Answer 13

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

Question 14

Umbra

Answer 14

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

Question 15

Penumbra

Answer 15

The partial or imperfect shadow outside the complete shadow of an opaque body, as a planet, where the light from the source of illumination is only partly cut off.

Question 16

Astronomical Unit (AU)

Answer 16

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

Question 17

Ellipse

Answer 17

An oval or flattened circle

Question 18

Terrestrial Planet

Answer 18

A planet with a rocky surface

Question 19

Gas Giant

Answer 19

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

Question 20

Asteroid

Answer 20

A small solid rocky body that orbits the Sun

Question 21

Comet

Answer 21

a celestial body moving about the sun, usually in a highly eccentric orbit, consisting of a central mass surrounded by an envelope of dust and gas that may form a tail that streams away from the sun.

Question 22

Meteor

Answer 22

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

Question 23

Meteorite

Answer 23

a mass of stone or metal that has reached the earth from outer space; a fallen meteoroid.

Question 24

Geocentric

Answer 24

Earth centered theory of the solar system

Question 25

Heliocentric

Answer 25

A Sun centered theory of the universe

Question 26

Gravity

Answer 26

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

Question 27

Tide

Answer 27

the rise and fall of the ocean’s surface levels due to the gravitational pull of the sun and moon (related word: tidal)

Question 28

Waxing

Answer 28

A gradual increasing of the Illuminated surface of the moon

Question 29

Wanning

Answer 29

The gradual decrease in the illuminated surface of the moon

Question 30

Gibbous Moon

Answer 30

More than half but less that 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

Quarter Moon

Answer 34

Half of the moon is illuminated