Transcript Eclipses and Tides - Burnet Middle School

A solar eclipse happens when the moon
passes directly between the Earth and
the sun, blocking the sunlight from Earth
 Can only occur during a new moon
phase

Umbra- darkest part of a shadow, where
light is totally blocked
 Penumbra- lighter, outer part of shadow
where light is only partially blocked
 A solar eclipse will look different
depending on your position on Earth.
(Whether you are in the moon’s umbra
or penumbra.)

During a total lunar eclipse the moon
moves into the darkest part of Earth’s
shadow, the umbra.
 Can only occur during a full moon
phase.


Can be seen from anywhere on Earth
where the moon is visible
Tides are caused by differences in how
much the moon’s gravity pulls on
different parts of Earth.
 We experience 2 high tides and 2 low
tides every 25 hours.


Spring Tides
› Greatest distance between consecutive high
and low tide
› When Sun, moon and Earth are in a straight line
(new moon or full moon phase)

Neap Tides
› Least difference between consecutive low and
high tides
› When the Sun’s pull on the oceans is at a right
angle (perpendicular) to the moon’s pull
› During 1st and 3rd quarter phase