december 15, 2011
DESCRIPTION
December 15, 2011. Objective. Agenda. Tide Notes Graphing the Tides Lab Comets. Determine the interval of high and low tides. Tides. Never give up, for that is just the place and time that the tide will turn. -- Harriet Beecher Stowe. - PowerPoint PPT PresentationTRANSCRIPT
December 15, 2011
Objective Determine the interval of
high and low tides
Agenda Tide Notes Graphing the Tides Lab Comets
TidesNever give up, for that is just the place and time that the tide will turn.
-- Harriet Beecher Stowe
I do not know what I may appear to the world; but to myself I seem to have been only like a boy playing on the sea-shore, and diverting myself in now and then finding a smoother pebble or a prettier shell than ordinary, whilst the great ocean of truth lay all undiscovered before me.
-- Isaac Newton
EarthMoon
Tides are the vertical movement of water, specifically the alternate rise (flood) and fall (ebb) of water in the ocean. This is mostly noticeable along continental shorelines.
The influence of the Moon’s gravitational force acting on the Earth’s oceans and the Earth (the rocky part).
Why?
EarthMoon
Sun
High TideHigh Tide
Low Tide
Low Tide
Tides are more influenced by the gravitational effect of the Moon than they are by that of the Sun (the Moon's closeness to us outweighs by far the Sun's greater size).
So, as the Earth spins around its axis, how many high and low tides do we have a day?
Earth
Moon Moon
Spring Tides The gravitational affects of the moon and sun combine to influence the flow of the oceans on Earth.
New MoonPhase of the moon?
Full Moon
Phase of the moon?
Moon
New Moon
Phase of the moon?
Higher high tides and lower low tides
Earth
Moon
MoonFirst Quarter
Phase of the moon?
Third Quarter
Phase of the moon?
Neap Tides The gravitational affects of the moon and sun fight each other with their influence on the flow of the oceans on Earth.
Moon
Third Quarter
Phase of the moon?
Lowest high tides and highest low tides