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Flashcards in Space Vocabulary Deck (34):
1

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

Orbit

2

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

Solar system

3

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

Galaxy

4

Space and all the matter and energy in it

Universe

5

An object that orbits a more massive object

Satellite

6

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

Impact crater

7

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

Rotation

8

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

Revolution

9

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

Season

10

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

Equinox

11

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

Solstice

12

A large dark plain of solidified lava on the moon

Mare

13

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

Eclipse

14

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

Umbra

15

A region of lighter shadow that may surround a central region

Penumbra

16

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

Astronomical units

17

An oval or flattened circle

Ellipse

18

A planet that has a rocky surface

Terrestrial planet

19

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

Gas giant

20

A small solid rocky body that orbits the sun

Asteroid

21

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

Commit

22

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

Meteor

23

A small object from outer space that passes through Earth’s atmosphere and reaches the surface

Meteorite

24

Earth centered theory of the solar system

Geocentric

25

A sun centered theory of the universe

Heliocentric

26

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

Gravity

27

The gradual increase of the illuminated surface of the moon

Waxing

28

The gradual decrease in the illuminated surface of the moon

Waning

29

More than half but less than fully illuminated

Gibbous moon

30

The illuminated surface is less than a quarter illuminated

Crescent

31

The entire surface of the moon is illuminated

Full moon

32

The entire surface of the moon is not illuminated

New moon

33

Half of the moon is illuminated

Half moon

34

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

Tide