eclipses and tides entry 9. what is an eclipse? when earth or the moon temporarily blocks the...
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Two Types of Eclipses-
1. Solar Eclipse- Moon comes between Sun and Earth and casts a shadow on Earth.
2. Lunar Eclipse- Earth comes between the Sun’s light and the moon and blocks the light from the moon.
Total Lunar Eclipse Lunar eclipses occur because of
the moon’s tilted orbit and only occur a couple times in a year
Feb 20, 2008- partial starts 8:43
total starts 10:00
What is a tide?
The rise and fall of the sea level. Caused by the gravitational pull of the Sun
and the Moon. There are 2 high tides and 2 low tides daily.
Affect of Gravity on tides- The moon’s gravity exerts a strong pull on the
Earth causes the water to bulge outward at places. The bulges of water are high tides & non-bulges
are low tides.
Spring Tides-
When there is the greatest difference between high and low tides (high-highs and low-lows).
Occurs when moon is in a straight line with sun and Earth= New moon and Full moon.
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