The Effects the Moon Has on Earth

582 Words3 Pages
The Effects the Moon has on Earth As the moon dances along its orbit in uniform motion with the earth, we see it going from a new moon to full moon and back. We normally think that the moon has no effect on us whatsoever, but in reality, we wouldn’t be where we are now without the moon. The effects the moon has on the earth are ocean tides, the length of our day, months, and animal behavior. The moon tries to pull the earth closer with its gravity. But with the earth being three times more massive than the moon, it is able to stay in place. Since the moon’s gravitational pull isn’t great enough to pull Earth closer, it grabs a hold to the ocean. This creates a tidal bulge in the direction of the moon and on the opposite side as well. This is where the high tides and low tides are distinguished. When the moon is aligned with the sun, spring tides are created making the high tides more dramatic. This usually occurs during a new moon and full moon. When the moon is not aligned with the sun, the tides become less dramatic becoming neap tides. The image below shows the relationship between the moon and the earth’s ocean tides. The moon also affects the length of day. With the moon’s gravity constantly pulling on Earth, the earth’s rotation slows down dramatically. This is what gives us our twenty four hour days. If we did not have the moon, Earth would spin fast giving us only eight hour days! That would mean only three to four hours of sunlight per day! As the moon orbits, it gives us our months as well. The moon goes through many phases in a month. It starts from new moon, to full moon and back to new moon. During this time, the changes in phases are visible in the night sky. This process usually takes about thirty days. This is where we get our 30-31 day months. Our months aren’t always exact with the moon, but it is pretty close. The Egyptians even

More about The Effects the Moon Has on Earth

Open Document