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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? - PowerPoint PPT Presentation
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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?
• 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 vs. Sand
Soil Types
SANDSILT
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.