Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
19 Cards in this Set
- Front
- Back
|
About how much of the earth is covered by water ?
|
About 70% of the World is covered by Water.
|
|
|
What are low and high tides caused by ?
|
They are caused by the pull of the moon
|
|
|
What is matter ?
|
Matter is anything thats has mass of takes up space.
|
|
|
What are the three states of matter ?
|
Liquid, Gas and Solids are the three states of matter .
|
|
|
What is a atom?
|
A atom is the smallest piece of a pure substance.
|
|
|
Describe a molecule ?
|
A molecule is a group of two or more atoms.
|
|
|
What is a element ?
|
A element is a substance of made out of atoms of the same type
|
|
|
What is a compound ?
|
A substance is made out of more than one atom.
|
|
|
What is mixture ?
|
A mixture is a combination of two or more compounds or elements with out a chemical reaction.
|
|
|
What is a solution ?
|
A mixture where the particles of two or more pure substances are mixed evenly .
|
|
|
What is the definition of salinity?
|
Salinity is the amount of salt is a salt water solution
|
|
|
What is the definition of of density?
|
Density is the amount of mass per volume. Salt water has a higher density then fresh water, because the molecules are closer together in salt .
|
|
|
What is the continental shelf ?
|
The flat zone extending from the beach to the continental slope.It can be very wide or very short reaches depths of 200 meters. This is what most ocean life is
|
|
|
What is the definition of the continental slope?
|
The continental slope is the steep slope down to the ocean floor. It averages from 200 meters to 4000 meters in depth
|
|
|
What is the continental rise ?
|
The continental rise is the transition area before the abyssal plain. Some sediment from the continent settles here
|
|
|
What is the definition of the abyssal plain?
|
The abyssal plain is the bottom of the deep ocean basin. Sediments wash down and cover many of the deep ocean features, making the abyssal plain look mostly flat.
|
|
|
Describe A surface Current
|
A surface current occurs in the sunlight zone. They are caused by the wind .
|
|
|
Describe a Deep Ocean Current
|
Occurs in the midnight zone. They are caused by different density due to temperature and salinity
|
|
|
Describe a Gulf Stream
|
A strong northern traveling current , located in the Atlantic Ocean
|
