Rotation & Revolution

Solar & Lunar

Eclipse

Orbit – the path the earth takes to travel

around the sun.

sun

orbit

ROTATION

Rotation – the Earth spinning on its axis.

earth

Period of Rotation –The amount of time it takes

for this rotation to happen: one day (24

hours)!

REVOLUTION

Revolution - the motion of the Earth orbiting around

the sun.

• sunearth

Period of Revolution – the amount of time it takes for an object to orbit around the sun once: One year (365 Days).

sun earth

Every planet revolves around the Sun! The closer you get to the sun the shorter the revolution/orbit.

Longer years

Shorter years

Rotation/Revolution Animation:

http://esminfo.prenhall.com/science/geoanimations/animations/01_EarthSun_E2.html

Review QUESTIONS:

What does each letter represent?

• earth

sunsun

A

B

C

Rotation or Revolution?

Rotation or Revolution?

Rotation or Revolution?

SOLAR ECLIPSE

South Pole

North Pole

Solar Eclipse Details

Sun Moon

A solar eclipse occurs when the moon comes between the Earth and the sun.

LUNAR ECLIPSE

A Lunar Eclipse

Moon

Sun

Earth

Moon’s Path

During a Lunar Eclipse the Earth’s shadow falls on the moon and the moon can look RED!!!

The moon becomes a blood red color during a total lunar eclipse. No wonder that ancient cultures feared the appearance of the moon during a lunar eclipse.

Review Questions:

Answer