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Notebook pgs. 1-5. Pg 1. Lithosphere: What’s the Big Idea? Part III Part II Part I. Apple Demo Questions – do these without looking at your sheets!. What did the skin on the last 1/32 of the apple represent?
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Pg 1 • Lithosphere: What’s the Big Idea? • Part III • Part II • Part I
Apple Demo Questions – do these without looking at your sheets! • What did the skin on the last 1/32 of the apple represent? • When I first cut the apple into quarters and set ¾ aside, what did those ¾ represent? • What percent of the earth is terrestrial? • What percent of the earth is aquatic?
Glossary Terms – put under correct letters in your glossary • Atmosphere: (“atmos” = vapor or steam + “sphere” = round object) The layers of gas surrounding earth, held in by earth’s gravity • Biosphere: (“bio” = life + “sphere” = round object) The zone of life on earth • Hydrosphere: (“hydro” = water + “sphere” = round object) All the water on, in, and under Earth’s surface • Geosphere: (“geo” = earth+ “sphere” = round object) The solid parts of earth made of rock • Lithosphere: (“litho” = rock + “sphere” = round object) the outermost part of the geosphere • Organic: characteristic of, pertaining to, or derived from living organisms
Pg. 2 • Earth’s Systems • Atmosphere: The layer of gases surrounding the earth, held in by earth’s atmosphere. It is composed of 78% nitrogen, 21% oxygen, 0.93% argon, and 0.04% carbon dioxide. • Biosphere: The zone of life or the total area on earth where life can exist. • Hydrosphere: The combined mass of all water found on, over, and under Earth’s surface. • Geosphere: The solid part of the earth, composed of rock. The lithosphere refers to the uppermost layers including the crust and uppermost mantle.
Pg. 3 • The Water Planet • Earth’s Land • Many different land forms, such as mountains, valleys, and plains. • 25% of earth is land • 12.5 % of earth is suitable for human use • 3.125% of earth is suitable for farming • Earth’s Water • Many different bodies such as rivers, lakes, oceans, ponds, streams, and groundwater (underground). • The ocean alone supports 50% of all species on earth.
Pg. 4 • Saltwater and Freshwater • Saltwater is found in oceans and seas. • Freshwater is found in rivers, streams, lakes, ponds, and groundwater.
Glossary Terms • Clay: smallest soil particle • Sand: largest soil particle • Silt: medium-sized soil particle
Pg. 5 • Soil and Sand • Soil: • Naturally occurring • Layers (horizons) with different compositions and characteristics • Contains mineral and organic (plant, animal, bacterial) matter • Sand: • Naturally occurring • Grains • Made of small rock and mineral particles • Both: • Naturally occurring • Components of the lithosphere • Come at least partially from broken down rocks and minerals
Soil Types SILT SAND CLAY
Sand • Largest particles • Doesn’t hold many nutrients • Drains water well and quickly and lets in lots of air
Silt • Medium size particle • Dry, it feels smooth and powdery. Wet, it feels smooth but not sticky. • Holds nutrients pretty well • Drains water pretty well and lets in air
Clay • Small particles • Smooth when dry and sticky when wet. • Soils high in clay content are called heavy soils. • Holds a lot of nutrients • Doesn't let air and water through it well.