7th GRADE SCIENCE : Article 23 : Energy sources.
* Activity 2.9 : Water power. Electricity generation. ( 11/6/17 Monday )
2.9.a Look up the following Electricity generation link and answer the
questions given to you today.
( 10 points ).
2.9.b Read what is said at the following LINK and afterwards answer the
following questios. You can do it thoughout using a google docs.
a) What is the force used in an hydroplant in order to generate
electricity?.
b) The turbine generates electricity as it is hit by running
water at a high speed. Why then are TRANSFORMERS
needed before sending electricity to the customers?.
c) Why is important to be able to produce electricity from
these hydroplants in order to help conserve our
environment?.
( 10 points ).
2.9.c You may watch the following videos so that you can understand
better how electricity is generated.
* Activity 2.10 : Potential energy into Kinetic energy. ( 11/7/17 Tuesday )
2.10.a Look up the followings links :
and afterwards answer the following questions and exercises.
( 10 points ).
2.10.b Look up the followings links and explain in a google docs how
potential energy is transformed or transferred into kinetic energy.
( 10 points ).
* Activity 2.11 : Geothermal energy. ( 11/8/17 Wednesday )
2.11.a Understanding what geothermal energy is.
Look up this link and answer the following questions :
a) What the geothermal energy is?.
b) Where does it come from?.
c) Explain the path geothermal energy follows until is used
on the earths surface.
d) What does water have to do with this geothermal energy?.
e) Which states in USA is most geothermal energy being used?.
( 10 points ).
2.11.b Is geothermal energy a renewable one? :
a) Look the same link than before and explain why geothermal
energy is considered as a renewable kind of energy source.
( 5 points ).
2.11.c Draw the different parts a geothermal energy installation has :
On a piece of paper make an outline about a geothermal
plant indicating its different parts.
( 5 points ).
* Activity 2.12 : Solar energy. ( 11/9/17 Thursday )
SOLAR ENERGY.
2.12.a Today you work in groups of three people. Each one has to prepare
only one solar energy sources different parts. You decide and agree
among the groups members which part you choose.
Each person must make an outline about his part and tell it to the
others. When everybody has finished his oral presentation
everyone has to write a summarize about the whole issue including the
others parts, in order to learn the general idea about the whole solar
energy system.
Person 1 :
Look up the following link and make a writing about what
solar energy consists of, what it is and which the main
important features are in order to develop it. When you finish
your writing, read out it loud to the others.
Person 2 :
Look up the following link and make a writing about where
solar is found.
When you finish your writing, read out it loud to the others.
Person 3 :
Look up the following link and make a writing about what
solar energy consists of, what it is and which the main
important features are in order to develop it. When you finish
your writing, read out it loud to the others.
( 15 points ).
2.12.b When you hear about all the others parts, make a report about the whole
you have listened to and email it to me reporting the most important you
have written down about the three parts of the solar energy source.
( 10 points ).
* Activity 2.13 : Wind power and energy. ( 11/10/17 Friday )
WIND POWER AND ENERGY.
2.13.a Look the following link about Wind power and energy.
Answer these questions in a google docs file and share it to me.
a) What is the wind?. Explain what it is.
b) Why does wind have so much energy?.
c) How do we take advantage of the Winds energy?.
d) Why are Wind turbines usually sited on high hills and mountains?.
e) What were Winds energy and forces used in the past for?.
f) Why is Wind power considered as a renewable energy source?.
g) How much energy is produced in USA by Wind power?.
h) How many houses can be powered up to electricity by using only
one wind turbine?.
i) To end, draw this outline about how winds are formed.
Do it on a piece of paper.
( 15 points ).
2.13.b Follow the instructions given in this video to make your pinwheel.
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