one complete spin of Earth on its axis
rotation
the Earth making one trip around the sun
revolution
energy from the sun
solar energy
rotation
A long period of lower than normal precipitation
drought
water in the air as an invisible gas
water vapor
sudden, violet movements of Earth's crust
earthquakes
loudest and largest volcano to ever erupt
Krakatoa
Causes seasons to change....
Tilt
What are mountains, desserts and plains?
landforms
the process that breaks rocks into smaller pieces
weathering
the process of rivers flooding their banks and leaving sediment along the banks of the river
alluvial
regions close to the equator
tropics
What is so good about the settlement of Mesopotamia?
the soil is fertile
When the Northern Hemisphere is cold, where would you want to go surfing?
any of the Pacific islands...Australia, New Zealand., Fiji..
magma that reaches Earth's surface
lava
water that is found in Earth's streams, river and lakes
surface water
continents
What makes the places that make up the Earth's crust move?
pressure forces them to shift
List some fresh waters
lakes, streams, rivers, ice caps
large areas of slow moving ice
glaciers
US volcano that erupted in Washington in 1980
Mount St. Helens
water found below Earth's surface
groundwater
what would happen in the Earth's axis was straight up and down?
no more seasons
What would be considered salt water?
oceans