RockenRyan: Waves and tides are awesome!

Hola I'm back. Today I am going to tell you about ocean waves and tides. I'm also going to tell you about their features and how waves and tides are caused.

Tides are the rise and the fall of the ocean's surface. They are caused by the gravitational force between the earth and the moon, and between earth and the sun. Tsunamis are close to tides. They are caused by under water earthquakes and under water volcanoes.

There are lots of parts of a wave. Two parts of a wave are the wavelength and the wave height. The wavelength is how long the wave is and also the distance between the crest and trough of the two waves. The wave height is the height of the wave. The top of a wave is called the crest and the bottom of a wave is called the trough. The sea level in the wave is in the middle of the wave.

Lastly I'm going to tell you about a spring tide, a neap tide and a tidal range. A spring tide has the lowest tidal range. This happens when the earth, the moon, and the sun are in a straight line. This is similar to a high tide. The tidal range is the difference in water level between a high tide and a low tide. A neap tide has the highest tidal range. It occurs when earth, the moon and sun form a right angle.