Do Now: While watching the following movie clip answer the following questions on your worksheet.

Turn and Talk: Will the world always look the way it does today? Explain.

Learning Objective: I will be able to explain the processes involved in the water cycle. I 

Success Criteria: 1) I can explain how much water is available on Earth. 2) I can identify the places in which freshwater is located. 3) I can explain the difference between condensation, evaporation, and transpiration. I 

Water on Earth How much of our planet is covered by water?

Water on Earth Oceans cover nearly 71 percent of Earth's surface. .

Most of Earth's water—roughly 97 percent—is salt water that is found in the oceans. Can we drink this water?

Eventually, we harvest that salt for our use!

Only 3 percent is fresh water. Of that 3 percent, about three quarters is found in the huge masses of ice near the North and South Poles.

Water on Earth A fraction more is found in the atmosphere. Most water in the atmosphere is invisible water vapor, the gaseous form of water.

Water on Earth Less than 1% of the water on Earth is fresh water that is available for animals to use.

Water on Earth

Check for understanding: I can interpret a chart to determine how much freshwater is available.

Water on Earth Types of water on Earth Oceans Ice Rivers and Lakes Below Earth's Surface   Groundwater: Water that fills the cracks and spaces in underground soil and rock layers . Most fresh water is located underground.

Check for understanding: I can identify where freshwater is found on Earth.

The Water Cycle Water is naturally recycled. A continuous process by which water moves through the living and nonliving parts of the environment. The sun is the source of energy that drives the water cycle.

The Water Cycle - Energy from the sun drives the water cycle.

The Water Cycle Water is constantly moving between sea, air and land The sun shines and the sea is heated heat

Evaporation: Liquid water to Water Vapor (Gas) The water evaporates and forms clouds Evaporation

Condensation: Gas to liquid forms clouds As air rises it cools and condenses. It reaches the ground as rain, snow, sleet or hail.

Precipitation: Rain, snow, sleet, hail fall to the ground. Snow forms Lakes form The snow melts and flows Rivers flow to the sea

Infiltration: Water seeps into the ground Snow forms Lakes form The snow melts and flows Rivers flow to the sea

Runoff: Water runs off the surface into the oceans Snow forms Lakes form The snow melts and flows Rivers flow to the sea

The Water Cycle Water is constantly moving between sea, air and land The Water Cycle is complete

Check for understanding: I can explain the processes involved in the water cycle.

The Water Cycle Steps of the Water Cycle Water Evaporates Clouds Form Water Falls as Precipitation   And then it starts again

Summary: Write an explanation of the water cycle beginning with two drops of water in the ocean. You must use key vocabulary words (evaporation, precipitation, condensation, etc).

Water Evaporates Evaporation: Liquid to gas Water can evaporate from where? Ocean Lakes Soil, puddles, and even from your skin Plants Eventually the water is given off through the leaves as water vapor in a process called transpiration

Condensation: Condensation: water vapor to liquid water Condensed droplets of water clump together around tiny dust particles in the air, forming clouds

Water Falls as Precipitation As more water vapor condenses, water droplets in a cloud eventually become so heavy that they fall back to Earth. Water that falls to Earth as rain, snow, hail, or sleet is called precipitation. Most precipitation falls directly into the oceans. Precipitation is the source of all fresh water on and below Earth's surface. The water cycle renews the usable supply of fresh water on Earth.

The Water Cycle

Do Now: How much water do you consume each day? Be specific.

Turn and Talk: What are ways in which we could reduce our water usage?

How Do People Use Water? The water people use at home is just a small percentage of all the water used in the United States. In addition to household purposes, people use water for Agriculture Industry Transportation Recreation

Agriculture Farms need a constant supply of fresh water Irrigation is the process of supplying water to areas of land to make them suitable for growing crops. In the U.S., more water is used for irrigating farmland than for any other single purpose.

Industry What objects require water to produce them? Water is needed to produce most objects. Water plays a role in the industrial processes that created them. Power plants and steel mills both need huge volumes of water to cool down hot machinery.

Transportation Oceans and rivers have been used for transporting people and goods since ancient times

Recreation Swimming, Fishing, Going to the beach, skiing, snowboarding, Water park etc.

Water Usage

Summary: Based on your knowledge on water usage, Do you think we use water sustainably or do we waste water? Explain your answer using evidence from what you learned in class today.