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Movement of the earth

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Title: Chapter 4 Author: Scott Last modified by: Unknown User Created Date: 6/25/2004 8:45:45 PM Document presentation format: On-screen Show Company – PowerPoint PPT presentation

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Title: Movement of the earth


1
Chapter 4
2
Movement of the earth
  • REVOLUTION- 365.26 DAYS 1 year
  • ROTATION- 24 HOURS 1 day

3
TILT OF THE EARTH
  • SUMMER- 23 1/2 DEGREES TOWARD SUN
  • WINTER - 23 1/2 DEGREES AWAY FROM THE SUN

4
NO TILT
  • SPRING- VERNAL EQUINOX
  • FALL- AUTUMNAL EQUINOX

5
MOON
  • DRY
  • AIRLESS
  • BARREN
  • NO ATMOSPHERE
  • WONT CHANGE
  • 4.6 BILLION YEARS OLD
  • 4.6 BILLION- RING A BELL???????

6
WHERE DID THE MOON COME FROM???
  • CAPTURED IN EARTHS GRAVITY
  • FORMED SAME TIME AS EARTH
  • GIANT ASTEROID HIT - CHUNK BROKE OFF

7
MOON
  • GOES THROUGH PHASES EVERY 29.5 DAYS

8
DOES MOON ROTATE?
9
  • YES

10
  • DARK SIDE OF THE MOON
  • THE SIDE AWAY FROM THE SUN

11
WHY CAN WE SEE MOON?
  • SUN LIGHTS IT UP

12
  • WHY DOES IT HAVE PHASES?
  • Sun hits it at different angles

13
NEW MOON
  • Does not light up at all

14
WAXING CRESENT
  • ¼ on right lit up

15
1ST QUARTER
  • RIGHT HALF LIT UP

16
WAXING GIBBOUS
  • ¾ OF RIGHT LIT UP

17
FULL MOON
  • ALL OF MOON LIT UP

18
WANING GIBBOUS
  • ¾ OF LEFT LIT UP

19
THIRD QUARTER
  • 1/2 OF LEFT LIT UP

20
WANING CRESCENT
  • ¼ ON LEFT LIT UP

21
BACK TO NEW MOON
  • 29.5 DAYS

22
HELP ME REMEMBER
  • WAXING ON TOP
  • LIGHT ON RIGHT
  • ¼ TO ½ TO 3/4

23
HELP ME REMEMBER
  • WANING ON BOTTOM
  • LIGHT ON LEFT
  • ¾ TO ½ TO ¼

24
HELP ME REMEMBER
  • GIBBOUS ON FULL SIDE
  • CRESCENT ON NEW SIDE

25
SOLAR ECLIPSE
  • ( SUN ) ( MOON ) ( EARTH )

26
LUNAR ECLIPSE
  • ( SUN ) ( EARTH ) ( MOON )

27
EFFECTS TIDES
  • MOON CLOSER-
  • HIGH TIDE
  • MOON AWAY-
  • LOW TIDE

28
SPRING TIDEHIGHEST TIDE
  • SUN AND MOON IN LINE
  • SUN MOON EARTH

29
NEAP TIDEhigher than high tide
  • SUN AND MOON ON OPPOSITE SIDES
  • SUN EARTH MOON

30
SATELLITES
  • COMMUNICATION
  • WEATHER
  • SCIENTIFIC
  • NAVIGATION
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