How old is the Earth?
4.6 billion years old
How much of the Earth is covered in water?
70%
What is a continental slope? - a team member must draw for points
■Dips sharply from a continental shelp to the deeper ocean floor
Give me an example of plankton
■Includes tiny plants and animals that float at or near the ocean surface
What does salinity mean
How salty something is
Name the reasons for the importance of fresh water
■Drinking
■Washing
■Cooking
■Farms and industry use 90% of the fresh water in the US
What is the deepest part of the ocean floor?
Ocean trench
What era of the Earth are we currently in?
Cenezoic Era
Name things that cannot be fossilized
anything that fully decays and does not get buried quickly
Name places where fresh water can be found
–Groundwater
–Springs, geysers, caves
–Rivers and drainage basins
–Lakes
–Reservoirs
What environmental situation can make ocean waves 30 meters or higher?
storms
Name the Earth’s era’s
Precrambrian Era
Paleozoic Era
Mesezoic ERa
Cenezoic Era
Name the purposes for a reservoir
■Store water for homes, farms, and industries
–Can be piped to dry areas
■Much of California’s water comes from a dam in Colorado
■Control flooding
–Can be released slowly and safely downstream through gates in the dam
■Produce electricity
–Water moves through generators near the bottom of the dam. This rushing water turns the blades of a turbine, which makes electricity
Why do you think there is a geyser in Yellowstone? Use some of your learned knowledge about geysers here
There is an underground spring that lies close to magma or hot rocks
What moves waves
Currents
What is a continental shelf? - a team member must draw for points
■The part of a continent that extends underwater
■Slopes greatly
How can ocean water be turned into rain water?
■Ocean water also evaporates
■It just leaves behind the salt
■So therefore, it is non – salted when it comes back as precipitation
What is an ocean plain? - a team member must draw for points
■Wide, flat areas where sediment settles out
■Half of the ocean floor consists of plains
How are soft parts of the body fossilized?
•Sometimes body matter is preserved
•Frozen in ice or soil
•Petroleum deposits
•Tree sap
What is an ocean trench - a team member must draw for points
■Long, deep valley
A human body can be preserved in what three ways?
•Sometimes body matter is preserved
•Frozen in ice or soil
•Petroleum deposits
•Tree sap
Why is soil porous?
To allow nutrients, wastes, water, etc. to soak into the ground - decreases flooding
Name all the reasons something can be fossilized?
•Fossils preserve shape, not body matter
•Ex: minerals will replace some of the original parts of the buried organism
•Petrification – replacement of the original parts of a buried organism with minerals
•Some fossils leave imprints behind
•Organisms buried between rock but later decays – creates a mold.
•If minerals then fill this mold it is called a cast
•Sometimes body matter is preserved
•Frozen in ice or soil
•Petroleum deposits
•Tree sap
What is a mid - ocean ridge? - a team member must draw for points
■Underwater mountain chains
■Underwater mountain