http://glencoe.mcgraw-
hill.com/sites/dl/free/0078600499/161383/00053404.h tml
http://glencoe.mcgraw-
hill.com/sites/dl/free/0078600499/161383/00053404.h tml How do
these relate to tides?
Slide 3
1. A tide is the point at which waves break on shore. 2. Tides
are caused by surface currents and wind. 3. The moons gravity
causes oceans to bulge outwards. 4. Where the ocean bulges the
most, there is a rip tide. 5. Earths orbit around the moon causes
daily tide changes. 6.Everyday at the Jacksonville Pier, there are
two low tides and two high tides.
Slide 4
Slide 5
1) Caused by the gravitational pull of the moon and sun on the
oceans 2) One low-tide-high-tide cycle is about 12 hours and 25
minutes 3) High tide is the highest level that the ocean reaches on
shore 4) Low tide is the lowest level that the ocean reaches on
shore
Slide 6
1) The moon pulls the oceans toward itself causing a bulge on
the side closest to the moon 2) The moon also pulls the earth
toward itself causing a bulge on the side away from the moon
Slide 7
1) Spring Tide tides caused when the sun and moon are lined up
with the earth (full and new moon) a) high tides are higher and low
tides are lower 2) Neap Tide tides caused when the sun and moon are
at right angles to each other (first and third quarter) a) high
tides are lower and low tides are higher
Slide 8
Slide 9
Slide 10
A tide is the point at which waves break on shore. [Disagree,
it is the rise and fall of ocean water levels.] Tides are caused by
surface currents and wind. [Disagree, caused by the moon.] The
moons gravity causes oceans to bulge outwards. [Agree.] Where the
ocean bulges the most, there is a rip tide. [Disagree, high tide.]
Earths orbit around the moon causes daily tide changes. [Disagree,
the Moons orbit around the Earth.] Everyday at the Jacksonville
Pier, there are two low tides and two high tides. [Agree.]