1. Resources and the environment
Unit 7
Resources
and the environment

2. Bellwork
Answer the following questions in the bellwork section of your binder.
What resources do you need to live?
What resources do you
need to build a house
like this one?

3. Learning goal You will learn:
The types of natural resources provided by Earth
Identify resources as renewable or nonrenewable
Examine each type of resource.
Traditional energy resources such as fossil fuels, as well as discover alternative energy resources.

4. Earth resources Natural resources provided by Earth are: Air Water
Land
Organisms
Rocks
Minerals
Nutrients
Geochemical cycles

5. Natural 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)

6. Renewable vs. nonrenewable
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

7. Land resources Land resources include: Topsoil Rocks Minerals
Space for agriculture
Housing
Roadways
Wildlife refuges and national parks

8. Air resources
Air contains substances that all organisms need to survive
nitrogen
oxygen
carbon dioxide
methane
ozone
Most important component of air is oxygen  21%

9. Disrupting earth’s cycles
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

10. Water Resources 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

11. assessment
Study Guide worksheet
Section assessments
Or chapter assessments