What are waves?
How do they form?
What causes tides?
What is the difference between currents, waves, and tides?
Tuesday, January 25, 2011
Grade 8 Week 14: Waves and Tides
Last week we looked at the oceans features and currents. Now we focus on other motions in the oceans.
What are waves?
How do they form?
What causes tides?
What is the difference between currents, waves, and tides?
Contract 14 gives you the choice to design your own contract to teach the class about waves or tides.
What are waves?
How do they form?
What causes tides?
What is the difference between currents, waves, and tides?
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8 comments:
A wave is a up-and-down motion along the surface of a body of water which are caused by winds.
The moon and sun's gravitational pull causes tides. Some of the effects of tides are like flooing, and drought.One of the biggest effects is that not all organisms live in water and on land.
if waves are caused by winds what if theres no wind?
could people escape a current coming stright at them?
tides are caused by the gravatational pull of the sun and the moon. The sun pretty much acts like a second moon in this situation.
Tides are caused by the Moon and Sun's gravitational pull. The are two types of tides Neap and Spring Tides, which both occur basicly from the placement of the moons and the Earth. Also each day there are two high tides and low tides.
A tide is caused by the moon and sun pulling on the water that lies on the Earths surface, which causes two bulges of water. Tides are caused by th sun and moon's gravitational pull, currents are caused by the uneven heating of the earth's surface, and waves are just the up and down motion of water.
Waves are caused by wind. When the wind gets a tight grip on the water, tiny waves start to form, and the bigger the grip the wind has on the water, the bigger the waves.
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