Warming up Unit 4 Global Warming THE EARTH

Warming up Unit 4 Global Warming THE EARTH IS BECOMING WARMER-BUT DOES IT MATTER?

The negative effects of global warming l 1. cause the sea level to rise; l 2. severe storms; l 3. drought; l 4. famine; l 5. destruction of species l 6. flood

The positive effects of global warming l 1. make plants grow faster l 2. crops will produce more l 3. make life better

What is the most important thing to a country? WHY? Money? Technology? Man power? Energy resources? International relations?

We depend on energy to do many things in our daily lives. For example, energy lights our cites and heats our buildings. Make a list of things that use energy in your home, in your school, or any other places you can think of.

cassette player heating light hairdryer video player micro-wave oven things that use energy stove in your home fridge television computer stove washing machine

Windmill Wind energy is used as power to produce electricity.

The coal power station where electricity is produced by burning coals.

The oil refinery in which oil is refined and made pure.

the nuclear power plant a facility designed to convert nuclear energy into electricity.

Solar panel on the roof of a house on a bright sunny day are used to collect solar energy, making your house warm or heating your water.

The Hydroelectric dam is used to keep back water and raise its level for irrigation or for producing electricity, etc.

Do you know any kind of energy resources? Please make a list. An energy resource is “renewable” when supplies of it never run out and “nonrenewable” when one day they will run out. Which energy resources on your list are renewable and which are non-renewable?

energy resources renewable/non-renewable coal non-renewable oil non-renewable natural gas non-renewable wind power renewable solar energy renewable nuclear energy non-renewable hydro-electric power renewable biomass energy renewable geothermal energy renewable tidal energy renewable

What are fossil fuels? Fossil fuels are formed over millions of years from the fossils, or remains, of dead animals and plants that were buried under dirt and rock, such as coal, oil and natural gas, which can be burnt to produce energy. They are also known as non-renewable energy, because once they are run out, they can not be renewed.

THANK YOU!