Science, Chapter 6, Unit B Lesson 1 Where is Earth’s water?

Water Water covers ¾ of Earth’s surface 3 states Solid-ice Liquid-water Gas-water vapor

How many oceans are on earth? Although the oceans of the earth are all connected and truly one "World Ocean," most often the world is divided into four major "oceans" - the Pacific Ocean, Atlantic Ocean, Arctic Ocean, and the Indian Ocean. Some consider there to be five oceans - the fifth being an ocean surrounding Antarctica called the Antarctic Ocean or Southern Ocean.

Salty Water Ocean water is salty – Cannot drink – Sodium chloride (table salt) Water is made up of – Hydrogen – Oxygen H 2 O Ocean Water Mixture of: – Water – Dissolved solids (rocks and soils)

Fresh Water Found in: – Rivers – Lakes – Polar ice caps – Glaciers – underground Most of Earth’s fresh water is found here

Saltiness Not the same in all oceans Speed water turns to water vapor

Saltier – Warm, dry areas – Turns water to water vapor rapidly Less salty – Cool temperatures – Near North and South Poles – Turns water to water vapor slowly – Locations near rivers Heavy rainfall melting ice Add fresh water to oceans, Makes ocean water less salty