Chapter 1 Earth: The Water Planet

Check out pages 14-35 as you create your title page on ISN #38.

https://www.youtube.com/watch?v=mH9kYn4L8TI

Section 1: How is Water Important?

Pages 16-22

How do people use water?

1. Household purposes 2. Agriculture 3. Industry4. Transportation5. Recreation

Household Purposes

The water we use in our homes is just a small percentage of all the water used in the United States.

What do you use water for at home? List at least 5 different ways that you

use water in your home.

Agriculture (farming)

A constant supply of fresh water is essential to a farmer.

Irrigation is the process of supplying water to areas of land to make them suitable for growing crops.

In the US, more water is used for irrigating farmland than any other single purpose.

Industry (factories)

Water is used to produce most objects. Water may not be part of the final product but it is part of the industrial process. (ex. Paper)

Power plants and steel mills need huge volumes of water to cool down hot machinery.

Food processing industry uses water to clean fruits and vegetables.

Transportation

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

Most large cities are located along the coasts.

Recreation (playing in the water!)

What are some fun things you like to do with water? List at least 5 different things in the box.

Swimming Boating Fishing Skiing Ice skating

Water and Living Things

Water makes up nearly two thirds of your body.

Water is essential for living things to grow, reproduce, and carry out other important processes.

Plants use water to make food in a process called photosynthesis.

Water is home, or a habitat, for some animals; both fresh and salt water.

Water on Earth

Oceans cover nearly 71% of Earth’s surface.

97% of Earth’s water is salt water while only 3% is fresh water.

Of that 3%, most is frozen in ice or in the atmosphere.

Water vapor is the gaseous form of water, it is found in the atmosphere.

Water on Earth

Types of water on earth1. Oceans2. Ice3. Rivers and Lakes4. Groundwater

Water on Earth

How does water get underground?

Water that fills the cracks and spaces in underground soil and rock layers is called groundwatergroundwater.

Words Worth Knowing (ISN #39)

Irrigation Habitat Water vapor Groundwater Photosynthesis Industry Agriculture