EVERYDAY SCIENCE

Detailed explanation-1: -While the moon and sun cause tides on our planet, the gravitational pull of these celestial bodies does not dictate when high or low tides occur. Tides originate in the ocean and progress toward the coastlines, where they appear as the regular rise and fall of the sea surface.

Detailed explanation-2: -They are caused by the gravitational forces exerted on the earth by the moon, and to a lesser extent, the sun. When the highest point in the wave, or the crest, reaches a coast, the coast experiences a high tide. When the lowest point, or the trough, reaches a coast, the coast experiences a low tide.

Detailed explanation-3: -The Short Answer: High and low tides are caused by the moon. The moon’s gravitational pull generates something called the tidal force. The tidal force causes Earth-and its water-to bulge out on the side closest to the moon and the side farthest from the moon. These bulges of water are high tides.

Detailed explanation-4: -The Oceans Bulge The overall effect of these tidal forces is to “squeeze” the oceans, and produce two tidal bulges on opposite sides of the Earth-one facing the Moon and a slightly smaller one facing away from the Moon (see illustration).