Material Match-Up
Property Detectives
Natural or Processed?
Ochre Facts
Fair Test Frenzy
100

The best material for a raincoat?

What is plastic – it is waterproof and flexible.

100

I am bendy and waterproof.

Plastic.

100

Is wood natural or processed?

Natural

100

What is ochre made from?

Coloured rock or soil (usually containing iron oxide).

100

What is one thing you should keep the same in a fair test?

The amount of ochre, surface type or mixing method.


200

What material is best for body paint?

Ochre – it is a natural pigment used for thousands of years.

200

I am soft and soak up water.

Fabric or sponge

200

Is paper natural or processed?

Processed – made from natural wood.

200

Name one traditional use for ochre.

Body painting, cave art, ceremonial markings.

200

What is the variable in this question: Which binder is best?

The binder

300

Which material would be best for a tent?

Nylon or canvas – they are strong and water-resistant.

300

I am shiny, hard and used in wires.

Metal

300

Is plastic natural or processed?

Processed – made from chemicals or fossil fuels.

300

Why do Aboriginal people value ochre?

It is culturally significant and used for connection to Country and ceremony.

300

Why should we only change one thing in an experiment?

To make sure the test is fair and we know what caused the result.

400

Which is better for a window: plastic or glass? Why?

Glass – it is clearer and more rigid than plastic.

400

I am flexible, soft, and keep people warm.

Wool or fleece

400

Is cotton fabric natural or processed?

Processed – it comes from the cotton plant but is woven.

400

What does a binder do in ochre paint?

Helps the pigment stick to the surface.

400

What does it mean to measure something in a fair test?

To observe and record results like drying time or smudging.

500

Why wouldn’t we use fabric to make a spoon?

Fabric is too soft, flexible, and absorbs liquids – not strong enough to hold shape.

500

I am hard, waterproof and strong. Used in cans.

Aluminium or tin (metal).

500

Give one example of a material that is both natural and processed.

Leather – natural hide that is chemically treated.

500

Name two ways Aboriginal people might use ochre differently.

Body painting for ceremony and art for storytelling.

500

Plan a fair test: What would you change, keep the same, and measure?

Change: the binder. Keep the same: amount of ochre, surface, method. Measure: how well it sticks or resists water.