Chapter 4
Movement of the earth REVOLUTION- 365.26 DAYS= 1 year ROTATION- 24 HOURS= 1 day
TILT OF THE EARTH SUMMER- 23 1/2 DEGREES TOWARD SUN WINTER - 23 1/2 DEGREES AWAY FROM THE SUN
NO TILT SPRING- VERNAL EQUINOX FALL- AUTUMNAL EQUINOX
MOON DRY AIRLESS BARREN NO ATMOSPHERE WON’T CHANGE 4.6 BILLION YEARS OLD 4.6 BILLION- RING A BELL???????
WHERE DID THE MOON COME FROM??? CAPTURED IN EARTHS GRAVITY FORMED SAME TIME AS EARTH GIANT ASTEROID HIT - CHUNK BROKE OFF
MOON GOES THROUGH PHASES EVERY 29.5 DAYS
DOES MOON ROTATE?
YES
DARK SIDE OF THE MOON THE SIDE AWAY FROM THE SUN
WHY CAN WE SEE MOON? SUN LIGHTS IT UP
WHY DOES IT HAVE PHASES? Sun hits it at different angles
NEW MOON Does not light up at all
WAXING CRESENT ¼ on right lit up
1ST QUARTER RIGHT HALF LIT UP
WAXING GIBBOUS ¾ OF RIGHT LIT UP
FULL MOON ALL OF MOON LIT UP
WANING GIBBOUS ¾ OF LEFT LIT UP
THIRD QUARTER 1/2 OF LEFT LIT UP
WANING CRESCENT ¼ ON LEFT LIT UP
BACK TO NEW MOON 29.5 DAYS
HELP ME REMEMBER WAXING ON TOP LIGHT ON RIGHT ¼ TO ½ TO 3/4
HELP ME REMEMBER WANING ON BOTTOM LIGHT ON LEFT ¾ TO ½ TO ¼
HELP ME REMEMBER GIBBOUS ON FULL SIDE CRESCENT ON NEW SIDE
SOLAR ECLIPSE ( SUN ) ( MOON ) ( EARTH )
LUNAR ECLIPSE ( SUN ) ( EARTH ) ( MOON )
EFFECTS TIDES MOON CLOSER- HIGH TIDE MOON AWAY- LOW TIDE
SPRING TIDE HIGHEST TIDE SUN AND MOON IN LINE SUN MOON EARTH
NEAP TIDE higher than high tide SUN AND MOON ON OPPOSITE SIDES SUN EARTH MOON
SATELLITES COMMUNICATION WEATHER SCIENTIFIC NAVIGATION