Science Vocab

Question 1

Solar system

Answer 1

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

Question 2

Galaxy

Answer 2

Millions and billions of stars held together in a group by there own gravity.

Question 3

Universe

Answer 3

Space and all the matter and energy in it

Question 4

Satellite

Answer 4

An 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 a smaller object strikes the surface.

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 one body around another such as earth in its orbit around the sun

Question 8

Season

Answer 8

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

Question 9

Equinox

Answer 9

In an orbit a position and time in wich the sunlight shines equally on the northern hemisphere and and the Southern Hemisphere.

Question 10

Solstice

Answer 10

In an orbit a position and time during which one hemisphere gets its maximum area of sunlight.

Question 11

Mare

Answer 11

A large dark plain solidified lava on the moon.

Question 12

Eclipse

Answer 12

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

Question 13

Umbra

Answer 13

The dark central region off a shadow

Question 14

Penumbra

Answer 14

a region of lighter shadow that may surround and umbra

Question 15

Astronomical unit UA

Answer 15

Earths average distance from the sun

Question 16

Ellipse

Answer 16

An oval or flattened circle

Question 17

Terrestrial planet

Answer 17

Earth or another planet smiler to earth that has a rocky surface.

Question 18

Gas giant

Answer 18

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

Question 19

Asteroid

Answer 19

A small solid rocky body that orbits the sun

Question 20

Comet

Answer 20

A body that produces a coma of gas and dust.

Question 21

Meteor

Answer 21

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

Question 22

Meteorite

Answer 22

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

Question 23

Orbit

Answer 23

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

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 sun as the accepted astronomical model of the solar system.

Question 26

Gravity

Answer 26

The force of objects exert on each other because of there mass.

Question 27

Tide

Answer 27

Ocean levels flucate as the sun moon and earth interact.

Question 28

Waxing

Answer 28

The gravital increase

Question 29

Waning

Answer 29

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

Question 30

Gibbous moon

Answer 30

Where the moon is less than half illuminated

Question 31

Crescent moon

Answer 31

The figure of the moon as it appears before its first quarter phase or after its quarter phase

Question 32

Full moon

Answer 32

The phase of the moon at which ch the moon as viewed from earth appears to be fully illuminated.

Question 33

New moon

Answer 33

The phase of the moon when it's conjunction with the sun and Invisible from earth

Question 34

Quarter moon

Answer 34

The moon is one half illuminated by the sun.

Question 35

Geocentric

Answer 35

Having or representing the earth as the center as In former astronomical systems