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Water in the Earth's Process
Tides, parts of the ocean
35
Science
6th Grade
01/21/2013

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Cards

Term
Explain what causes tides
Definition
The gravitational pull between the sun causes the water on the Earth to be pulled in the direction of the moon and sun. As the Earth rotates, it rotates in the water which causes tides.
Term
What are the different types of tides? (6)
Definition
Neap & Spring
Term
When do Neap tides occur?
Definition
During a 1st and 3rd quarter moon. The moon and the sun are at a 90 degree angle with the Earth.
Term
When there is a Neap tide how are the high and low tides different?
Definition
There is very little difference between the high tide and the low tide.
Term
When do Spring Tides occur?
Definition
During a full and new moon. The moon and sun are in a straight line with the earth.
Term
When there is a Spring tide how are the high and low tides different?
Definition
The high tide is at its highest and the low tide is at its lowest.
Term
What is a pro to solar enery?
Definition
It will last for billions of years
Renewable
can be used anywhere
Term
What is a con of solar enery?
Definition
Not available at night
may need a backup source
expensive to set up
Term
Explain what happens to energy in a wave.
Definition
The water particles move up and down but DO NOT move forward.
Term
How does heat from the sun reach the Earth?
Definition
radiation
Term
Name the parts of the ocean floor. (7)
Definition
Continental Shelf
Continental slope
Abyssal plain
Seamount
Volcanic Islands
Mid-ocean ridge
Trench
Term
Describe the continental shelf.
Definition
under water part of the continent that is relatively flat and gently slopes down
Term
Describe the continental slope.
Definition
connected to the continental shelf and it plunges further down into the ocean
Term
Abyssal plain
Definition
a nearly flat region of the ocean floor, covered with thick layers of sediment
Term
Seamount
Definition
mountains whose peaks do not break the surface of the water.
Term
Volcanice Islands
Definition
occur when volcanoes on the ocean floor eventually build up enough and reach the surface of the water
Term
Mid-ocean ridge
Definition
occurs at a deivergent boundary where magma comes up through the surface and creates the longest mountain chain in the world.
Term
Trench
Definition
occurs at a subduction zone and is the deepest part of the ocean
Term
What are the zones of the ocean?
Definition
Intertidal
Nertic
Open-ocean
Surface
Transition
Deep
Term
Describe the Intertidal Zone
Definition
the area that stretch from the highest high-tide to the point on the continental shelf exposed by the lowest low tide.
Term
Describe the Nertic Zone
Definition
extends from the low tide to the edge of the continental shelf
Term
Describe the Open-ocean Zone
Definition
extends from beyond the edge of the continental shelf and includes the deepest, darkest parts of the ocean
Term
Describe the Surface Zone
Definition
most affected by weather because it is at the top
Term
Describe the Transition Zone
Definition
where a lot of ocean life lives
Term
Describe the Deep Zone
Definition
cold and dark
Term
What effects the size of waves?(3)
Definition
The length of time the wind flows across the water
The strength of the wind
the distance the wind blows
Term
What is the composition of the ocean water?(8)
Definition
Water, Sodium, chloride, sulfate, magnesium, calcium, potassium, other
Term
Percent of ocean water - water
Definition
96.5
Term
Percent of ocean water - Sodium
Definition
30.6
Term
Percent of ocean water - chloride
Definition
55
Term
Percent of ocean water - sulfate
Definition
7.7
Term
Percent of ocean water - magnesium
Definition
3.7
Term
Percent of ocean water - calcium
Definition
1.2
Term
Percent of ocean water - potassium
Definition
1.1
Term
Percent of ocean water - other
Definition
.7
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