Earth & Moon

Mr. SkirbstPhysical Science

Topic 28

http://www.nineplanets.org/

Features of the Moon

Galileo Galilei (1609) first to observe moon through telescope

Features of the Moon

Galileo Galilei (1609) first to observe moon through telescope

He observed large, flat, dark areas and called them Maria (singular mare) – Latin for “sea”

Features of the Moon

Galileo Galilei (1609) first to observe moon through telescope

He observed large, flat, dark areas and called them Maria (singular mare) – Latin for “sea”

He observed light areas that were mountainous and called them highlands

Features of the Moon

Craters – circular features ranging from microscopic to hundreds of kilometers across

Most due to impacts of material from space, some result from volcanic activity

Most are on “far side” of moon

Features of the Moon

Rilles – long valley on moon’s surfaceCould be due to past volcanic activty

Hadley Rille visited by Apollo astronauts

Movement of the Moon

The moon orbits the Earth

Movement of the Moon

The moon orbits the EarthPerigee – closest to EarthApogee – farthest from Earth

Movement of the Moon

The moon orbits the EarthPerigee – closest to EarthApogee – farthest from EarthPeriod of Rotation = Period of Revolution* Same side always faces Earth *

Phases of the Moon

Apparent changes to the moon’s illumination due to its orbit around the Earth

Phases of the Moon

New Moon:

Phases of the Moon

Waxing Crescent:

Phases of the Moon

First Quarter:

Phases of the Moon

Waxing Gibbous:

Phases of the Moon

Full Moon:

Phases of the Moon

Waning Gibbous:

Phases of the Moon

Last Quarter:

Phases of the Moon

Waning Crescent:

Tides on Earth

Rise and fall of oceans due to pull of moon

High Tide:

Low Tide:

Tides on Earth

Spring Tide: Neap Tide:

Eclipses

Solar Eclipse:

Eclipses

Lunar Eclipse: