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ELEMENTS: Where on earth? . The Crust. The outermost layer of the Earth is called the crust. Most of the crust is made from only five elements. It is rare for elements to occur alone, although some, like gold and silver, do. The Crust. The Atmosphere.
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The Crust • The outermost layer of the Earth is called the crust. • Most of the crust is made from only five elements. • It is rare for elements to occur alone, although some, like gold and silver, do.
The Atmosphere • The layer of gases surrounding the Earth is called the atmosphere. • The oxygen in the atmosphere is necessary for most life on Earth.
The Ocean • Ocean water is about 97% water, and the rest is made of other elements and gases. • There have been around 84 elements identified in sea water.
Living Things • Cells make up living things, and elements make up cells.
Top 8 Elements • The following 8 elements are the most important for you to know. The are……….
Guess the 8! (KORT Tickets) • H • N • C • Na
Guess the 8! (KORT Tickets) • He • O • Cl • Ca