Tides
The revolution of the earth around the sun takes
1 year
How long does it take the moon to go from new moon to full moon?
2 weeks
During what moon phases do neap tides occur?
First Quarter and Third Quarter
During what moon phases do spring tides occur?
New Moon and Full Mooon
What has the greatest influence on the tides?
The moon, because it is closer to the earth
Would earth continue to have tides if there were no moon?
Yes, the sun's gravitational pull would still cause tides but the tidal range would be much lower
High tide
a bulge that occurs in the Earth's oceans when the Moon is overhead
Spring tide
a tide with the greatest difference between high and low tide
Neap tide
a tide with the least difference between low and high tide
Knowing when high and low tides occur in an area might help in
beach activities such as beach combing and shelling, sand castle building, and swimming
Tidal patterns can be influenced by
large continents which block the coastline, The shape of the ocean floor, and the shape of the coastline
Low tides
locations between the bulges where the moon is not overhead
the rotation of the earth on its axis takes
one day
The revolution of the moon around the earth takes about
one month
How long does it take the moon to go from new/full moon phase to a quarter phase
one week
What causes the tides
the gravitational pull of the moon and sun
A spring tide occurs when
the sun and moon are aligned with the earth
A neap tide occurs when
the sun and moon pull at right angles to each other
During a full moon or new moon
the sun and moon's gravitational pull work together to create high tides that are very high and low tides that are very low
The difference in height between a high tide and low tide is called a
tidal range
How often do both spring tides and neap tides usually occur
twice a month
The number of tides that occur each day
vary from place to place