Week 28 Extra Credit

Identify the ocean located between Africa and Australia.

• Atlantic Ocean

• Indian Ocean

• Pacific Ocean

• Arctic Ocean

Fill in the blank: The ocean located to the east of North America is the ______ Ocean.

• Atlantic Ocean

• Pacific Ocean

• Indian Ocean

• Arctic Ocean

What are the 5 major oceans

• Pacific Ocean, Atlantic Ocean, Africa, North America, South America

• Indian Ocean, Arctic Ocean, Southern Ocean, Pacific Ocean, & Atlantic Ocean

• Europe, Asia, Southern Ocean, North Atlantic, North Pacific

• Indian Ocean, Arctic Ocean, Southern Ocean, Gulf Shores, Red Sea

The composition of Ocean Water is:

• Salt and water

• Only water

• Salt and sand

• Only salt

What are the two elements that make up a water molecule?

• A) Hydrogen and Nitrogen

• B) Hydrogen and Oxygen

• C) Oxygen and Carbon

• D) Carbon and Nitrogen

What percentage of sea water is composed of water?

• 96.5%

• 3.5%

• 50%

• 100%

What is the chemical formula for Sodium Chloride?

• NaCl

• H2O

• CO2

• NaOH

Fill in the blank: Sea water is composed of 96.5% water and 3.5% ____.

• salt

• sugar

• sand

• minerals

By some estimates, if the salt in the ocean could be removed and spread evenly over the Earth's land surface it would form a layer more than 500 feet (166 meters) thick, about the height of a 40-story office building (NOAA). But, where did all this salt come from?

• From the erosion of rocks on land

• From underwater volcanic activity

• From the remains of marine organisms

• From human activities

Hydrolysis contributes to chemical weathering by:

• breaking down minerals through reaction with water

• combining minerals with oxygen

• dissolving minerals in acid

• freezing and thawing of water in cracks