Do Now: Copy the following definitions into a new page of your journal Biosphere: global system integrating all living things and their relationships Geosphere: the solid portion of the Earth Hydrosphere: all waters on the Earth’s surface Atmosphere: a layer of gases surrounding a planet

Activity: For each Earth system, identify 2 examples you may find in each Biosphere: global system integrating all living things and their relationships Geosphere: the solid portion of the Earth Hydrosphere: all waters on the Earth’s surface Atmosphere: a layer of gases surrounding a planet

Fossil Fuels

Fossil Fuels What?: buried, combustible geologic deposit of organic material formed from decayed plants and animals exposed to heat and pressure over millions of years Where?: concentrated where ancient swamps and oceans once were Why?: decayed plants and organisms sank to the bottom of the water and over millions of years fossil fuels formed Examples: petroleum (crude oil), natural gas, & coal

Minerals- Diamonds

Minerals- Diamonds What?: pieces of solid carbon formed under intense heat and pressure Where?: diamonds can be mined in igneous rock near volcano sites Why?: diamonds can be found in the Earth’s mantle and come to the surface during volcanic eruptions

Minerals- Gold

Mineral- Gold What?: a heavy element formed during a supernova (the end of a star’s life) Where?: randomly dispersed on Earth and mined to extract Why?: natural gold found in space after a supernova was incorporated into Earth’s layers during Earth’s formation

Soil

Soil What?: small pieces of rock and decomposed animal matter Where?: soil can be found all over the Earth, but fertile soil can readily be found in river beds Why?: running water breaks down rock and decomposed animal matter gets distributed with this rock pieces

Ground Water

Ground Water What?: water found in tiny gaps between rock, soil, and sediments under the Earth’s surface Where?: large aquifers can be found all over the Earth Why?: aquifers are formed by rain and surface water seeping into the water table underground