Someone somewhere has found a solutionThe PACE project was started to help organisations in one part of Africa get the benefits from the ideas and experiences of people working in other parts. By sharing ideas we dont have to start from zero, we can learn from other peoples experiences and share our own findings with them, so everyone benefits.The film were watching today has been shared with people in 22 countries.

GOOD or BAD? Sort these FUELS from BEST to WORST. Theres no right answer so think about why youve chosen that order.MethaneCoalThe North WindA cowpatA banana skinA treeSunshineA waterfall Your legsUraniumGOODBAD

This activity could also lead to a debate over whether scientists should make value judgements.

If you were a farmer in Tanzania, would you install a biogas system??BENEFITS TO MY FAMILYPROBLEMS TO OVERCOME

Activity 1

Tanzanian Shillings: 500,000 TZS is about 215 pounds at 2007 exchange rates (280 pounds at the exchange rates when the film was made). For 500,000 shillings, a household could buy about 6 years worth of kerosene, based on average rate of use for lighting a household.

Used for lighting andHow is it made:.. Also known as (A mixture of gases) Benefits:..BiogasFind out moreWhat is it made from?

What is biogas? A mixture of methane and carbon dioxide

CH4CO2 Methane or swamp gas, produced naturally in swampy ponds

What is this?

Molecules: Wikimedia Commons Public Domain; Methane gas from Minnesotas for Sustainability

What is it used for? Biogas is a fuel used as an energy source for light, heat or movement

?

Biogas Train image by Amanda i Linkping 2006 (WikiCommons)

Biogas is produced by the breakdown of organic waste by bacteria without oxygen (anaerobic digestion or fermentation). How is it made?What types of organic waste could be turned in biogas?

Biogas is made by fermenting organic waste in a biogas digester. Digesters vary from small household systemsHow is it made?

Diagram: Practical Action Technical Sheet on Biogas

Holsworthy Biogas Plant, Devon.to large commercial plants of several thousand cubic metres

It can also be captured from landfill sites where organic waste has been rotting under the ground

Landfill compactor Wikimedia image released to the Public Domain

CREATE A SENTENCE USING THE KEYWORDS TO COMPARE THE TWO CASE STUDIESKEYWORDSElectricity generators at HolsworthyKatakwas biogas stoveenvironmentalelectricitymethanemanurebiogasAnaerobic digestiongreenhouse gasesorganic wastepollution

Give students the handout and ask them to scan the article for the keywords on the slide. When this has been done, ask students to construct a sentence comparing the Katakwas farm plant in Tanzania with the Holsworthy Biogas Plant in Devon using one or more keywords. Share sentences to complete the lesson. e.g. The Katakwas use biogas for cooking and lighting, but the Holsworthy Biogas plant uses it to produce electricity

This activity could also lead to a debate over whether scientists should make value judgements.Tanzanian Shillings: 500,000 TZS is about 215 pounds at 2007 exchange rates (280 pounds at the exchange rates when the film was made). For 500,000 shillings, a household could buy about 6 years worth of kerosene, based on average rate of use for lighting a household. Molecules: Wikimedia Commons Public Domain; Methane gas from Minnesotas for SustainabilityBiogas Train image by Amanda i Linkping 2006 (WikiCommons)Diagram: Practical Action Technical Sheet on BiogasLandfill compactor Wikimedia image released to the Public DomainGive students the handout and ask them to scan the article for the keywords on the slide. When this has been done, ask students to construct a sentence comparing the Katakwas farm plant in Tanzania with the Holsworthy Biogas Plant in Devon using one or more keywords. Share sentences to complete the lesson. e.g. The Katakwas use biogas for cooking and lighting, but the Holsworthy Biogas plant uses it to produce electricity