Review:
TIDES
SEASONS
MOON PHASES
WHY DO WE HAVE TWO (2)
HIGH TIDES AND TWO (2) LOW
TIDES EACH DAY?
What causes tides?
Generally occurs
twice a day
two High Tides and two Low Tides
CHALLENGE QUESTION: 2/27/15
• WHY DO WE HAVE TWO (2) HIGH
TIDES AND TWO (2) LOW TIDES
EACH DAY?
• EARTH AND MOON
CONSTANT MOVING –
CONSTANT MOVEMENT
RESULTS IN CHANGE OF TIDES
HIGH LOW
• NEAP (90)
• SPRING (180)
Direct
Indirect
Summer Solstice
June 21
First day of Summer
Winter Solstice
December 21
First day of Winter
Longest day of the year
Shortest day of the year
•Axis tilted toward Sun
•Summer for 3 months
•Direct sunlight
•Longer days; shorter nights
•Warmer temperatures
•Axis tilted away from Sun
•Winter for 3 months
•Indirect sunlight
•Shorter days; longer nights
•Cooler temperatures
Vernal Equinox
March 20
First day of Spring
Autumnal Equinox
September 22
First day of Fall
•Axis is parallel to the sun
•Both hemispheres get equal
amount of sunlight
March 21
Vernal Equinox
December 21
Winter Solstice
June 21
Summer Solstice
Spins (rotates
to the East)
September 21
Autumnal Equinox
3RD QUARTER
WANING GIBBOUS
WANING CRESCENT
FULL MOON
NEW MOON
WAXING GIBBOUS
1ST QUARTER
WAXING CRESCENT