Earth Science Module 2 Lesson 1

Front 1

Celestial grid system

Back 1

The celestial sphere is the imaginary dome on which the stars and planets appear in the night sky; to locate a celestial object, a person must first know his or her zenith

Front 2

electromagnetic radiation

Back 2

A kind of radiation including visible light, radio waves, gamma rays, and x-rays, in which electric and magnetic fields vary simultaneously

Front 3

Electromagnetic spectrum

Back 3

The range of wavelengths or frequencies over which electromagnetic radiation extends

Front 4

Equator

Back 4

Imaginary line is exactly halfway between the north and south poles and has a latitude of 0 degrees because you are looking straight ahead at an angle if 0 degrees

Front 5

Latitude

Back 5

Refers to distances north and south of the equator

Front 6

Longitude

Back 6

Refers to distances east and west of the prim meridian

Front 7

Map

Back 7

Flat models of Earth's round surface, thus all maps contain some sort of distortion; a picture or representation of Earth's surface, showing how things are related to each other by distance, direction, and size

Front 8

Map projection

Back 8

Used to portray all or part of the round Earth on a flat surface

Front 9

Map scale

Back 9

Determine the distance

Front 10

Meridians

Back 10

Longitude lines

Front 11

Phytoplankton

Back 11

Tiny plant-like organisms in the ocean

Front 12

Remote sensing

Back 12

Gathering data about Earth from far above is called

Front 13

Satellites

Back 13

Remote sensors that collect information about the planet without physically contacting it

Front 14

Topographic maps

Back 14

Show a 3 dimensional world in 2 dimensions by using contour lines

Front 15

Zenith

Back 15

The imaginary point on the celestial sphere located directly above his or her head