EnergyEnergy Around Around UsUs

Paula Crespo Paula Crespo GonzálezGonzález

Forms of energyForms of energy

Energy is the ability an object or body Energy is the ability an object or body has to create changes arond it .has to create changes arond it .

There are different types of energy :There are different types of energy : * Mechanical or kinectic * Mechanical or kinectic

energy .energy . * Light energy.* Light energy. * Sound energy.* Sound energy. * Electric energy .* Electric energy . * Thermal or heat energy.* Thermal or heat energy. * Chemical energy.* Chemical energy. * Nuclear energy.* Nuclear energy.

ElectricityElectricity

Electricity comes from other forms of Electricity comes from other forms of energy that exist in nature like the kinectic energy that exist in nature like the kinectic energy of moving water or wind ,or the energy of moving water or wind ,or the chemical energy of coal.chemical energy of coal.

Electricity is very useful form of Electricity is very useful form of energy:energy:

* We can transport it easily .* We can transport it easily .

* It transforms into other types of * It transforms into other types of

energy .energy .

Sources of energySources of energy Sources of energy give us the energy we Sources of energy give us the energy we

need . There are two need . There are two *Sources of renewable energy .These are *Sources of renewable energy .These are

the the ones that are abundant like sunlight or ones that are abundant like sunlight or the wind.the wind. *Sources of non-renewable energy .There *Sources of non-renewable energy .There

is is only a limited amount of this type of only a limited amount of this type of energy ,like petroleum.energy ,like petroleum.

Sources of renewableSources of renewable energyenergy

Sunlight is a reneweble source Sunlight is a reneweble source of energyof energy

Sources of non-renewable Sources of non-renewable energyenergy

Petrol is the most used non-renewable energy Petrol is the most used non-renewable energy sourcesource

The most widely used The most widely used sources of energysources of energy

The most common sources of energy are:The most common sources of energy are:

* Fuels. The most frequently used * Fuels. The most frequently used fuels are:fuels are:

- Coal. - Coal.

- Natural gas.- Natural gas.

- Petroleum.- Petroleum.

* Water.* Water.

* Wind .* Wind .

* Uranium and plutonium* Uranium and plutonium..

Other sources of energyOther sources of energy

There are other sources of energy There are other sources of energy that we use less:that we use less:

* The sun.* The sun.

* Biomass.* Biomass.

* Rocks and water in volcanic * Rocks and water in volcanic areas.areas.

* Waves and tides* Waves and tides..

Other sources of Other sources of energyenergy

Solar panels catch solar energy and Solar panels catch solar energy and trnsform ittrnsform it

Producing elctricityProducing elctricity

These power station are These power station are different ,depending on the source of different ,depending on the source of energy they use:energy they use:

* Hydroelectric power station .* Hydroelectric power station .

* Thermal power station .* Thermal power station .

* Nuclear power station .* Nuclear power station .

* Solar power station .* Solar power station .

* Wind farms.* Wind farms.

Producing Producing electricityelectricity

Wind turbines generate electricity Wind turbines generate electricity when they movewhen they move

Thermal power plantThermal power plant

Thermal power plantThermal power plant

Hydroelectric power Hydroelectric power stationsstations

Energy problemsEnergy problems

Producing and using them causes many Producing and using them causes many problems to living things and the enviroment problems to living things and the enviroment ::

* Changes in the landscape.* Changes in the landscape.

* negative effects on living things .* negative effects on living things .

* Polluntion.* Polluntion.

* Depletion of non- renewable energy * Depletion of non- renewable energy sources.sources.

Energy problemsEnergy problems

Acid rain harms the forestsAcid rain harms the forests

Energy problemsEnergy problems

Power lines can be harmful to living things and the Power lines can be harmful to living things and the

enviromentenviroment

Using energy efficientlyUsing energy efficiently

We can do many things to save energy:We can do many things to save energy:

* Turn off the lights.* Turn off the lights.

* Use public transport.* Use public transport.

* Turn off heaters and air * Turn off heaters and air conditioning.conditioning.

* Avoid opening the door of the * Avoid opening the door of the fridge.fridge.

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