The Solar System

Question 1

Solar system

Answer 1

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

Question 2

Galaxy

Answer 2

Millions or billions of stars held together in a group.

Question 3

Universe

Answer 3

Space and all the matter and energy in it

Question 4

Satellite

Answer 4

A object that orbits a more massive object.

Question 5

Impact crater

Answer 5

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

Question 6

Axis of rotation

Answer 6

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

Question 7

Revolution

Answer 7

The motion of one body around the other

Question 8

Season

Answer 8

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

Question 9

Equinox

Answer 9

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

Question 10

Mare

Answer 10

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

Question 11

Eclipse

Answer 11

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

Question 12

Umbra

Answer 12

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

Question 13

Penumbra

Answer 13

A region of a lighter shadow that may surround an umbra.

Question 14

Astronomic unit. AU

Answer 14

Earths average distance from the sun, which is about 150 million kilometer.

Question 15

Ellipse

Answer 15

An oval or flattened circle

Question 16

Terrestrial planet

Answer 16

Earth or a planet similar to earth that has a rockey surface.

Question 17

Gas giant

Answer 17

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

Question 18

Asteroid

Answer 18

A small, solid, rockey body that orbits the sun

Question 19

Comet

Answer 19

A body that produces a coma of gas and dust.

Question 20

Meteror

Answer 20

A brief streak of light by a small partial entering earths atmosphere at a high speed

Question 21

Meteorite

Answer 21

A small object form outer space that passes through earths atmosphere and reaches the surface.

Question 22

Gravity

Answer 22

The force that objects exert on each other because of their mass

Question 23

Geocentric

Answer 23

Having or representing the earth as a center

Question 24

Heliocentric

Answer 24

Measured or considered as being seen from the center of the sun.

Question 25

Gibbous moon

Answer 25

More than half but less than fully illuminated from the point of view of an observer.

Question 26

Crescent moon

Answer 26

Part way between a half moon and a new moon

Question 27

Orbit

Answer 27

The path of another object as it moves around another object due to gravity.

Question 28

Quarter moon

Answer 28

Third quarter. The moon is one half illuminated by the sun.

Question 29

New moon

Answer 29

The phase of the moon when it is in conjunction with the sun and invisible earth.

Question 30

Full moon

Answer 30

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

Question 31

Waxing

Answer 31

The moon at any time after new moon and before full moon.

Question 32

Waning

Answer 32

growing or expanding in illumination.

Question 33

Tide

Answer 33

The parodic rise and fall of the waters of the ocean and its inlets.