1. Non-renewable& Renewable Energy

2. Non-Renewable Energy Sources Petroleum Natural Gas Coal Nuclear

3. Renewable energy Sources * Solar energy * Wind energy *Hidropower (water) * Biomass * Geothermal

4. Nonrenewable Basics Non-renewable energy sources come out of the ground as liquids, gases, and solids.  Crude oil (petroleum) is the only commercial nonrenewable fuel that is naturally in liquid form. Natural gas and propane are normally gases, and coal is a solid. and coal is a solid.

5. Oil & Natural Gas Oil was formed from the remains of animals and plants that lived millions of years ago in a marine (water) environment before the dinosaurs. Oil was formed from the remains of animals and plants that lived millions of years ago in a marine (water) environment before the dinosaurs. Over millions of years, the remains of these animals and plants were covered by layers of sand and silt. Over millions of years, the remains of these animals and plants were covered by layers of sand and silt.

6. The main ingredient in natural gas is methane (a compound gas) The main ingredient in natural gas is methane (a compound gas) Millions of years ago, the remains of plants and animals decayed and built up in thick layers. This decayed matter from plants and animals is called organic material — it was once alive. Millions of years ago, the remains of plants and animals decayed and built up in thick layers. This decayed matter from plants and animals is called organic material — it was once alive. Pressure and heat changed some of this organic material into coal, some into oil (petroleum), and some into natural gas — tiny bubbles of odorless gas. Pressure and heat changed some of this organic material into coal, some into oil (petroleum), and some into natural gas — tiny bubbles of odorless gas.

8. Coal Coal Takes Millions of Years To Create Coal Takes Millions of Years To Create Coal is a combustible black or brownish-black Coal is a combustible black or brownish-black sedimentary rock composed mostly of carbon sedimentary rock composed mostly of carbon and hydrocarbons and hydrocarbons Coal is a non-renewable energy source because Coal is a non-renewable energy source because it takes millions of years to create. it takes millions of years to create. The energy in coal comes from the energy stored The energy in coal comes from the energy stored by plants that lived hundreds of millions of years by plants that lived hundreds of millions of years ago, when the Earth was partly covered ago, when the Earth was partly covered with swampy forests. with swampy forests.

10. Nuclear Energy Nuclear energy is energy in the nucleus (core) of an atom.It is energy from atoms. Atoms are tiny particles that make up every object in the universe. Nuclear energy is energy in the nucleus (core) of an atom.It is energy from atoms. Atoms are tiny particles that make up every object in the universe. Nuclear energy can be used to make electricity. But first the energy must be released. Nuclear energy can be used to make electricity. But first the energy must be released.

11. Renewable Basics : Renewable energy sources can be replenished in a short period of time. The five renewable sources used most often are : Renewable energy sources can be replenished in a short period of time. The five renewable sources used most often are : Solar energy Solar energy Wind energy Wind energy Hidropower (water) Hidropower (water) Biomass Biomass Geothermal Geothermal

12. Biomass Biomass is organic material made from plants and animals. Biomass contains stored energy from the sun. Biomass is organic material made from plants and animals. Biomass contains stored energy from the sun. Plants absorb the sun's energy in a process called photosynthesis. The chemical energy in plants gets passed on to animals and people that eat them. Plants absorb the sun's energy in a process called photosynthesis. The chemical energy in plants gets passed on to animals and people that eat them.

13. Water (hydropower) Hydropower Relies on the Water Cycle : Solar energy heats water on the surface, causing it to evaporate. Solar energy heats water on the surface, causing it to evaporate. This water vapor condenses into clouds and falls back onto the surface as precipitation (rain, snow, etc.). This water vapor condenses into clouds and falls back onto the surface as precipitation (rain, snow, etc.). The water flows through rivers back into the oceans, where it can evaporate and begin the cycle over again. The water flows through rivers back into the oceans, where it can evaporate and begin the cycle over again.

14. Geothermal The word geothermal comes from the Greek words geo (earth) and therme (heat). So, geothermal energy is heat from within the Earth. We can recover this heat as steam or hot water and use it to heat buildings or generate electricity. The word geothermal comes from the Greek words geo (earth) and therme (heat). So, geothermal energy is heat from within the Earth. We can recover this heat as steam or hot water and use it to heat buildings or generate electricity. Geothermal energy is a renewable energy source because the heat is continuously produced inside the Earth. Geothermal energy is a renewable energy source because the heat is continuously produced inside the Earth.

15. Wind, energy from moving air Wind is simply air in motion. It is caused by the uneven heating of the Earth's surface by the sun. Because the Earth's surface is made of very different types of land and water, it absorbs the sun's heat at different rates. Wind is simply air in motion. It is caused by the uneven heating of the Earth's surface by the sun. Because the Earth's surface is made of very different types of land and water, it absorbs the sun's heat at different rates.

16. Energy from the Sun The sun has produced energy for billions of years. Solar energy is the sun’s rays (solar radiation) that reach the Earth. This energy can be converted into other forms of energy, such as heat and electricity. The sun has produced energy for billions of years. Solar energy is the sun’s rays (solar radiation) that reach the Earth. This energy can be converted into other forms of energy, such as heat and electricity. Radiant energy from the sun has powered life on Earth for many millions of years. Radiant energy from the sun has powered life on Earth for many millions of years.