Resources and the environment

UNIT 7

Answer the following questions in the bellwork section of your binder.1. What resources do you need to live?

2. What resources do you need to build a house like this one?

BELLWORK

You will learn:The types of natural resources

provided by EarthIdentify resources as renewable or

nonrenewableExamine each type of resource.Traditional energy resources such as

fossil fuels, as well as discover alternative energy resources.

LEARNING GOAL

Natural resources provided by Earth are:Air WaterLandOrganismsRocksMineralsNutrientsGeochemical cycles

EARTH RESOURCES

Recall that neither matter nor energy can be created or destroyed, but both can be changed.

Natural resources can be transformed:Cycling (carbon, nitrogen and water cycles)

NATURAL RESOURCES

Renewable

Living things, surface water,

groundwater, fertile soil, air, solar

energy, elements that cycle

Replaced through natural processes at same rate as being

used

Nonrenewable

Fossil fuels (coal and petroleum)Elements (gold, copper, silver)

Exists in fixed amounts – can only

be replaced by geological, physical

or chemical process---takes millions of years

RENEWABLE VS. NONRENEWABLE

Land resources include:TopsoilRocksMineralsSpace for agricultureHousingRoadwaysWildlife refuges and national parks

LAND RESOURCES

Air contains substances that all organisms need to survive

nitrogen oxygen carbon dioxide methane ozone

Most important component of air is oxygen 21%

AIR RESOURCES

Burning of fossil fuels and land releases carbon dioxide into the atmosphere global warming

Other human activities adversely affect the survival and health of the organisms

Air pollution

DISRUPTING EARTH’S CYCLES

Freshwater is recycled through the water cycle

Water management techniques to ensure a continuing supply

Dams and reservoirs

Transporting surface water

Tapping groundwater

Desalinating seawater

WATER RESOURCES

Study Guide worksheetSection assessmentsOr chapter assessments

ASSESSMENT