Earth And Space Science Gt Chapter 28 Vocab"the Sun"

Front 1

Aurora

Back 1

sheets of colored light produced by a magnetic storm in the earth's upper atmosphere.

Front 2

Chromosphere

Back 2

thin layer of the sun's atmosphere that lies above the photosphere and glows with a redish light; color sphere.

Front 3

Convective Zone

Back 3

region around the sun's radiative zone in which moving gases transfer energy.

Front 4

Corona

Back 4

outermost layer of the sun's atmosphere; crown.

Front 5

moon

Back 5

body that is smaller than a planet and orbits the planet.

Front 6

Nebular theory

Back 6

theory that the sun and the planets condensed out of a spinninng cloud of dust and gas.

Front 7

Photosphere

Back 7

innermost layer of the solar atmosphere; light sphere.

Front 8

Planet

Back 8

any one of the nine major bodies that orbit the sun.

Front 9

planetesimal

Back 9

samll body of matter that formed in the outer regions of the solar nebula while the sun was still forming in it's center.

Front 10

prominence

Back 10

cloud of glowing gases that arches high above the sun's surface.

Front 11

protoplanet

Back 11

large body of matter that formed from the coalescence of planetesimals in the solar nebula.

Front 12

radiative zone

Back 12

region surronding the core of the sun in which energy is transferred in the form of electromagnetic waves.

Front 13

solar flare

Back 13

sudden, violent eruption of electrically charged atomic particales from the sun's surface.

Front 14

solar nebula

Back 14

cloud of gas and dust that developed into the solar system

Front 15

solar system

Back 15

the sun and the bodies that revolve around it.

Front 16

solar wind

Back 16

electrically charged atomic particles that stream out into space through holes in the sun's corona.

Front 17

sunspot

Back 17

cool, dark area of gas within the photosphere caused by powerful magnetic fields.

Front 18

sunspot cycle

Back 18

periodic variation in the number of sunspots that occurs approximately every 11 years.