Question

Waves
1.
We can see waves on lakes or oceans. Waves are energy, not water. It is energy that moves across the ocean's surface.
Water particles only travel in a small circle as a wave passes.
Usually the wind provides the energy.
A strong wind that blows for a long time over open water can create big waves. Sometimes, an earthquake under the sea creates huge amounts of energy suddenly.
This travels across the sea very quickly then slows and grows in height when it reaches land.
2.
We call the top of the wave the crest and the bottom the trough.
The distance between the crest and the trough is the wave height, and the distance between one crest and the next is the wavelength.
3.
Waves stop when the wind stops giving them energy to continue
Otherwise they can travel to the other side of the world. On rocks, waves break with force and create a lot of foam and spray. On a beach, the sand or stones slow the bottom part of the wave, and the crest rises to a peak, then curls over the top-creating the 'classic' wave shape-and breaks on the shore.


Fill in:rise,blow,reach,trough,break in the correct form.
1.When waves..............land,they slow down.
2.When the top of a wave................to its peak,it curls over the top.
3.The bottom of a wave is the......................
4.As the wind................,it forms waves
5.When the weather is bad waves..................with force on