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

Question 4

Universe

Answer 4

Space and all matter and energy in it

Question 5

Satellite

Answer 5

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

Question 6

Rotation

Answer 6

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

Question 7

Revolution

Answer 7

the orbiting of an object around another object

Question 8

Season

Answer 8

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

Question 9

Equinox

Answer 9

The time when the day and night are equal, because the sun shines equally on both hemispheres

Question 10

Solstice

Answer 10

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

Question 10

Mare

Answer 10

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

Question 11

Asteroid

Answer 11

Asteroids are irregularly shaped rocks that revolve around the Sun.

Question 12

Comet

Answer 12

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

Question 13

Meteorite

Answer 13

When a meteoroid moving away from the asteroid belt hits Earth’s surface, it is called a meteorite.

Question 14

Geocentric

Answer 14

Having the Earth as the Center

Question 15

Heliocentric

Answer 15

Having the Sun as the Center

Question 16

Umbra

Answer 16

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

Question 17

Penumbra

Answer 17

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

Question 18

Astronomical unit (AU)

Answer 18

is the distance from the center of the Earth to the sun or 93million miles

Question 19

Ellipse

Answer 19

a flattened circle or oval.

Question 20

Terrestrial planet

Answer 20

a planet having a compact rocky surface

Question 21

Gibbous moon

Answer 21

A moon that appears more than half lighted but less than full

Question 22

Crescent moon

Answer 22

A lunar phase whenever the moon is waning or moon that appears more than half lighted but less than full

Question 23

Full moon

Answer 23

A lunar phase when the moon is fully illuminated

Question 24

New moon

Answer 24

A lunar phase when the moon is not visible

Question 25

Quarter moon

Answer 25

A lunar phase when the moon is half illuminated

Question 26

Gas giant

Answer 26

a large planet of relatively low consistency

Question 27

Gravity

Answer 27

a force that exists between any two objects that have mass

Question 28

Tide

Answer 28

the rise and fall of the ocean’s surface levels due to the gravitational pull of the sun and moon

Question 29

Waxing

Answer 29

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

Question 30

Waning

Answer 30

have a progressively smaller part of its visible surface illuminated, so that it appears to decrease in size

Question 31

Impact Crater

Answer 31

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

Question 32

Rotation axis

Answer 32

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

Question 33

Eclipse

Answer 33

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

Question 34

Meteor

Answer 34

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