ELEMENTS: Where on earth?. The Crust O The outermost layer of the Earth is called the crust. O Most of the crust is made from only five elements. O It.

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Presentation transcript:

ELEMENTS: Where on earth?

The Crust O The outermost layer of the Earth is called the crust. O Most of the crust is made from only five elements. O It is rare for elements to occur alone, although some, like gold and silver, do.

The Crust Element% by Mass Oxygen47% Silicon28% Aluminum8% Iron5% Calcium3% Others9%

The Atmosphere O The layer of gases surrounding the Earth is called the atmosphere. O The oxygen in the atmosphere is necessary for most life on Earth.

The Atmosphere Element% by Mass Nitrogen78% Oxygen21% Others1%

The Ocean O Ocean water is about 97% water, and the rest is made of other elements and gases. O There have been around 84 elements identified in sea water.

The Ocean Element% by Mass Oxygen85% Hydrogen10% Chlorine2% Sodium1% Others2%

Living Things O Cells make up living things, and elements make up cells.

Living Things Element% by Mass Hydrogen59% Oxygen24% Carbon11% Nitrogen4% Others2%

Top 8 Elements O The following 8 elements are the most important for you to know. The are……….

Guess the 8! (KORT Tickets) O H O N O C O Na

Guess the 8! (KORT Tickets) O HeO O Cl O Ca

The Top 8 (Copy into your journal) H Hydrogen He Helium N Nitrogen O Oxygen C Carbon Cl Chlorine Na Sodium Ca Calcium