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Flashcards in The Solar System Deck (13):
1

Planet

Any of the nine primary bodies that orbit the sun; a similar body that orbits another star

2

Solar system

The sun and all of the planets and other bodies that travel around it

3

Satellite

A neutral or artificial body that revolves around the planet

4

Phase

The change in the illuminated area of one celestial body as seen from another celestial body; phases of the moon are cause by positions of the Earth, Sun, and the moon

5

Eclipse

An event in which the shadow of one celestial body falls on another

6

What is a terrestrial planet

terrestrial planets are the inner planets closest to the Sun, i.e. Mercury, Venus, Earth, and Mars.

7

What is a hydrosphere

You the proportion of earths water

8

Asteroid

I a small rocky object that orbits the sun, usually in a band between Jupiter and mars

9

Gas giant

A planet that has a deep massive,atmosphere such as Jupiter, Saturn, Uranus, and Neptune

10

What is a nebula?

a cloud of gas and dust in outer space, visible in the night sky either as an indistinct bright patch or as a dark silhouette against other luminous matter.

11

What is a nebula model?

The nebular hypothesis is the most widely accepted model in the field of cosmogony to explain the formation and evolution of the Solar System. It suggests that the Solar System formed from nebulous material.

12

What is a accretion?

the process of growth or increase, typically by the gradual accumulation of additional layers or matter.

13

What is a comet?

a celestial object consisting of a nucleus of ice and dust and, when near the sun, a “tail” of gas and dust particles pointing away from the sun.