PACIFIC ISLANDS

ATOLL ISLANDS

• An atoll is a ring-shaped coral reef, island, or series of islets.
• Atolls are formed by coral reefs
• Some atoll islands are the marshall and most of tuvalu
• Atoll grow around volcanic islnads
• Bits of coral pile up to form flat,sandy islands around the lagoon

CONTINENTAL ISLANDS

• Continental islands are islands that were once part of a continent
• Some islands are antarctica,austalia
• Some are formed when sea levels risae and some from erosion

VOLCANIC ISLANDS

• They form when a volcano erupts far beneath the surface
• Some examples are Hawaii
• Volcanic islands are steep with high peaks

TRADE WINDS

• They are winds that blow toward the equator both north and south
• As they blow toward the equator they shift westward
• The shifting is caused by the rotation of the earth
• When the winds blow across the ocean they move water towards surface
• This moving of the surfaces causes ocean currents

TRADE WINDS

• Ocean currents move in a circular pattern
• As the currents move it warms the sun warms the water
• As the currents they act as a heating systems
• They warm the air in coastal areas and heats what other wise would be cold