Renewable, Nonrenewable, and Inexaustable energy resources

Energy Humans use energy everyday! Some of this energy is better for the environment than others… We can place energy into 3 categories based on how they affect the environment…

1. NONRENEWABLE RESOURCES cannot be replaced as quickly as it is used. Eventually, these resources will run out.

NONRENEWABLE ENERGY FOSSIL FUELS: energy from the remains of dead plants and animals from millions of years ago. 1. Coal: black rock burned in power plants, it pollutes air. 2. Petroleum (oil): Black liquid fossil fuel obtained from drilling into the earth. We use it for our cars. 3. Natural gas: Gas that it trapped underground. It burns the cleanest of all fossil fuels and for that reason we use it to heat our homes

Why are they non-renewable?

OIL & COAL IN THE OCEAN

WHITEBOARD QUESTIONS What form of energy is mined from under the ground? What form of energy warms our houses? What form of energy is drilled from the earth?

WHITEBOARD QUESTIONS What form of energy pollutes the air? What fossil fuel is a solid? What fossil fuel is a liquid? What fossil fuel is gas?

Inexhaustible Resources Resources that will NEVER run out

INEXAUSTABLE EXAMPLES 1.Solar Power (sun) When it is cloudy or nighttime, this energy source doesn’t work very well. 2. Wind Power This source of energy uses the power of moving air. It is captured on large farms that some people think are ugly 3. Hydroelectric or Tidal Power (water) To get this source of power, we build large dams and use the power of moving water.

2. RENEWABLE RESOURCES Alternate energy resources that can be replaced in a short period of time.

Renewable Resources Examples Biomass: trees and wood We can grow this energy source. 2. Geothermal Energy: energy from the Earth’s heat This energy source uses the heat located deep inside the earth.

Renewable Resources Examples TIDAL or WAVE Special buoys, turbines, and other technologies can capture the power of waves and tides and convert it into clean, pollution-free electricity

TIDAL or WAVE

NONRENEWABLE or RENEWABLE ENERGY? NUCLEAR ENERGY: Nuclear energy on the other hand is a result of heat generated through the fission process of atoms. . All power plants convert heat into electricity using steam. At nuclear power plants, the heat to make the steam is created when atoms split apart - called fission. The fission releases energy in the form of heat and neutrons. The released neutrons then goes on to hit other neutrons and repeat the process, hence generating more heat. In most cases the fuel used for nuclear fission is uranium. .

Hydrogen A fuel cell combines hydrogen and oxygen to produce electricity, heat, and water. Fuel cells are often compared to batteries. Both convert the energy produced by a chemical reaction into usable electric power

Hydrogen

Why are they renewable?

Why are they inexaustable?

Which resource is better for the environment? Inexhaustible resources because they will never run out and do not produce any waste that can hurt the Earth. HOWEVER, they are expensive to use!

What kind of energy do the pictures represent? Above: oil drilling; Right: Factory using coal

What kind of energy do the pictures represent? Hydroelectric or Tidal Renewable

What kind of energy do the pictures represent? Solar Petroleum/oil

What kind of energy do the pictures represent? Wind Power

What kind of energy do the pictures represent? Tidal