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Solar Energy is everywhere

The sun gives off more energy in one second, than people have used from the beginning of time .It is bigger than anything we can really imagine -- a million planet earths would fit inside it! It takes millions of years for the energy from the center of the sun to reach the sun’s surface. And then just eight minutes for it to travel the 93 million miles to earth.


Temperature Graph       September October 2011

25

Temperature in degrees Celcius

20

15 Series1 Series2 Series3 10

5

0 Day

27th

28th

29th

1st

6th

8th

11th

Days of the month

We harvested lots of solar energy in September  and October. On two days the temperature of  the water increased by 8 ºC. The lowest  increase of temperature was 2º C on the 28th of  September. The average increase in  temperature was 5.5º C We were very successful harvesting solar  energy in September and October.


Harvesting solar energy outside

Checking the temperature in the large black tin


Solar Energy Dictionary Electricity

A kind of energy used for lighting, heating and making machines work.

Evaporate

Change from liquid into steam or vapour

Fossil fuel

Coal, natural gas and oil made by decaying and harden into rock.

Fuel

Something that is burned to make heat or power, such as coal and oil.

Global warming

The increase in the temperature of the earth’s atmosphere, caused by the greenhouse effect.

Photovoltaic (PV)

Ia method of generating electrical power by converting solar energy into electrical power.

Pollution

To make a place or thing dirty or impure.

Solar

1 To do with the sun. 2 powered by the sun’s energy.

Sustainable

To keep something going

Thermal

Adjective to do with heat ; using heat

Vapour

A visible gas to which something can be converted by heat. For example steam or mist

By Shauna Doyle and Jamie O’Moore


Using Solar Energy to Purify Water We put 600ml of salty water into a plastic container. We used food colouring to turn the water red.

Then we put a small bowl standing in the middle of the plastic container

We used cling wrap to cover the container. We used an eraser to weigh down the centre of the cling wrap. We put in the window facing the sun. After a while we noticed drops of moisture on the cling wrap. The moisture dropped into the small bowl. We collected a small amount of clean water. By Laura Kelly


Solar House

We built this eco-house in class it took one day to build. It has a fan on one side of the roof and an alarm on the other side. It has a ladder on the right side of the house and a fence surrounding the house. You can use it in solar mode but due to limited power supply only one electric consuming part such as the windmill and alarm . The solar panel cannot hold solar energy inside it. So we have to use batteries as a back up


Solar Lamp

Our teacher brought in a lamp that works on solar energy. We put the lamp in the window and used the energy from the sun to recharge the battery. The next day we put the lamp on our table to see how long the energy would last.


Harvesting Solar Energy January 2012 Date 11th 12th 13th 16th 17th 18th 19th 20th 23rd 24th 25th 26th 27th 30th

Water temp at 10 a.m. 9ºC 9 ºC 5 ºC 6 ºC 11 ºC 11 ºC 6 ºC 9 ºC 8 ºC 11 ºC 10 ºC 5 ºC 5 ºC 4 ºC

Water temp.at 2 p.m. 11 ºC 12 ºC 7 ºC 7 ºC 11 ºC 12 ºC 9 ºC 11 ºC 8 ºC 12 ºC 11 ºC 7 ºC 8 ºC 6 ºC

Difference 2 ºC 3 ºC 2 ºC 1 ºC 0 ºC 1 ºC 3 ºC 2 ºC 0 ºC 1 ºC 1 ºC 2 ºC 3 ºC 2 ºC

Weather Partly cloudy Partly cloudy Sunny but cold Cloudy Cloudy Cloudy Drizzle Partly cloudy Fairly cold Drizzle Cold Cold Dry Rainy


Change in Temperature in January 14

Temperature in Degrees Celsius

12

10

8 Morning temperature Afternoon temperature 6

4

2

0 11th

12th

13th

16th

17th

18th

19th

20th

Dates

23rd

24th

25th

26th

27th

30th


Solar Energy