Fleece to Grease From Fleece to Grease Fleece

Fleece to Grease

From Fleece to Grease

Fleece to Grease

WHAT IS WOOLGREASE? • Woolgrease is a greasy yellow substance that comes from the fleece of sheep • Woolgrease is a by-product of the wool industry. Purpose of woolgrease Keeps the sheep dry Keeps the sheep warm Protects against UV light

Cool Sheep

Washing Wool

Wool Scouring Process 200 ONE MERINO SHEEP 250 -300 ml WOOLGREASE SHEEP GIVE AROUND 200 g OF WOOLGREASE (MERINO SHEEP GIVE THE HIGHEST WOOLGREASE YIELD)

Wool Scouring Process THEREFORE, A 200 KG DRUM CONTAINS THE ‘OUTPUT’ OF ~1000 SHEEP

The Problem with Grease http: //www. scienceofhealthyskin. org. uk/lanolin 4. htm

The Problem with Grease

The Problem with Grease http: //www. scienceofhealthyskin. org. uk/lanolin 4 b. htm

Drums of Woolgrease

Woolgrease Lanolin

Roles & Responsibilities § Administrator keeps a written and pictorial record for the group § Resource Manager collects, sets up and returns all equipment used by the group § Communications Officer collects the group’s ideas and reports back to the rest of the class. § Health and Safety Manager takes responsibility for the safety of the group, making sure everyone is working sensibly with the equipment § Personnel Manager takes responsibility for resolving disputes within the group and ensuring the team works together

Oil and Water

Where is lanolin used? To make most of the products we need to get the lanolin oil to mix with water

Oil and Water Which product of C, D or E will help mix A and B?

Planning We are investigating We could change… We will change… (independent) Our question is…. We will keep the same We could measure/observe… We will measure/observe (dependent)

Planning We are investigating We could change… Amount of water Amount of oil We could measure/observe… Amount of extra product Amount of time to separate Which extra product We will change… (independent) Our question is…. Which product we will add Amount of oil Amount of time to separate Which of product C, D or E mixes A and B? We will keep the same Amount of water We will measure/observe (dependent) Amount of extra product

You will need § Bottles labelled A-E § 4 plastic jars and lids

Part 1 § Add 50 ml of A and 50 ml of B -> shake Part 2 § Add 45 ml of A, 45 ml of B, 10 ml of C § Add 45 ml of A, 45 ml of B, 10 ml of D § Add 45 ml of A, 45 ml of B, 10 ml of E Which of product C, D or E mixes A and B?

The Pastillator

§ Some of our customers want a product that is easier to use and so they want it in a form of little blobs called pastilles. § These pastilles are made in a machine called a pastillator

Pastillator Video http: //www. scienceofhealthyskin. org. uk/lanolin 6 a. htm

You will need § Laminated sheet § Spoon § Pipette § Different products

Planning We are investigating We could change… We will change… (independent) Our question is…. We will keep the same We could measure/observe… We will measure/observe (dependent)

Planning We are investigating We could change… Amount of product Tool to make pastilles We will change… (independent) Our question is…. We could measure/observe… Time to make pastilles ? How many pastilles are made We will measure/observe (dependent) ? How well can we make pastilles? We will keep the same ? How even the pastilles are

Feedback § What did you find out? § Did different products need different equipment to make the best pastilles?

Thank you! We hope you enjoyed our visit! Perhaps one day you would like to be a scientist too? !