Today is September 24, 2013 Get your notebook off the shelf and glue in the page I gave you on page 19 of your notebook. Complete the worksheet by matching the correct set of elements to the correct part of the earth. When your done with the sheet, Study your notes and information on Earth Elements for your quiz today.

The Solid Earth The solid part of Earth is a part of the lithosphere. It consists of two layers. These minerals contain oxygen and silicon—the two most common elements in Earth’s lithosphere—joined together. Only five of them—oxygen, silicon, aluminum, iron, and calcium— make up more than 90 percent of the rocks in Earth’s lithosphere.

Atmosphere Oxygen gas makes up about 21 percent of the atmosphere. 78 percent of the atmosphere is nitrogen. (So EARTH’s ATMOSPHERE is mostly NITROGEN) The remaining 1 percent consists of argon, carbon dioxide, and other gases. The atmosphere’s gases provide materials essential for living things. Nitrogen promotes plant growth and is an important ingredient in the chemicals that make up living things. Oxygen is necessary for animals and plants to perform life processes. Plants use carbon dioxide along with water to make food.

Oceans Water is made of hydrogen and oxygen, H2O. It contains dissolved salts, most of which contain the elements sodium and chlorine.

LIVING THINGS Almost all of the weight of most living things consists of six elements—oxygen, carbon, nitrogen, hydrogen, phosphorus, and calcium. The human body, for example, is about 61 percent oxygen and 23 percent carbon dioxide. Carbon is the living element, all living things are Carbon based. 65% of living things are oxygen