Jun 10, 2015
MY PROFILEBiddut Khoshnobish
Assistant Teacher
Sristy Residential SchoolTangail
Cell: 018 3311 6567E-mail: [email protected]
English For TodayClass IX-X
Subject
Unit: ElevenRenewable Energy
Learning Outcomes
During discussion we will learn about:
EnergyFossil Fossil FuelsNon-renewable energyRenewable energyMain sources of renewable energyDefinitions of some terms used in the text
After discussion we will have:
SynonymsQuestions & Answers Group WorkHome TaskA video clip of volcanic eruption
Prehistoric World
Was full of plants/trees
Fossil Fuels
Oil
Gas
Coal
Hydro Carbon
Hydrocarbons are
non-renewabl
e Energy
Hydro Carbon
Fossil Fuels
What is energy?Energy helps us do things.
Sources of Renewable Energy
Sunlight
Wind
Wave
R a i n
Hydrogen Energy
Biomass
Geothermal Energy
The earth is hot
Geyser
How can we use those sources of renewable energy?Now starts group work. Think 5 minutes. Group leaders will tell the ways we can follow to use the sources.
GROUP
WORK
GROUP
WORK
Solar Panel
Wind Turbine
Hydro Electricity
Biomass
Geothermal heating
Geothermal heating
Questions & Answers:
1. What do you mean by fossil fuels?
2. Why are the fossil fuels thought to be big problems?
3. What do you mean by renewable energy?
Ans: Petroleum, coal and natural gas are called fossil fuels because they have been produced from plants and trees for millions of years.
Ans: Fossil fuels are thought to be big problems mainly for three reasons. First, fossil fuels are limited and will run out. Secondly, they are expensive and damaging for the environment. Thirdly, they directly cause global warming.
Ans: Some energy sources are constantly and naturally replenished. As a result they will never run out. These are called renewable energy.
Questions & Answers4. “Bio-energy” & “Geothermal energy”– do these two terms seem new to you? If yes, what have you learnt about them?
Ans: Yes, they are new to me. I have learnt that plants and trees produce waste or wood which can be turned into fuel. They are called biomass. The interior of the earth contains lava with extreme heat. This heat produces steam and hot water which is called geothermal energy.
5. What are the major differences of non-renewable and renewable energy sources?
Ans: Non-renewable energy sources are expensive, damaging and will run out eventually. On the other hand, renewable energy sources are eco-friendly and will never run out.
Non-renewable energy
Renewable energy
What are those
Effects
Consequences
Information Transfer
Petroleum, coal, gas Sun light, wind, rain, biomass, earth’ heat
Damaging, polluting Eco-friendly
Will run out Will never run out
Synonyms
Words SynonymsFossil Organic remains, skeleton, deposit
Replenish Renew, recreate, refill
Finite Limited, fixed
Constant Regular, nonstop, steadfast, continual
Eventual Ultimate, final
Interior Inside, inner
Source Origin, root
Downhill Downward, falling, dropping
Abundant Plentiful, sufficient, rich
Home Task
Write a summary of the passage in about 100 words.