Materials Jeopardy

Introduction

100

Define 'raw materials'

Substances that are extracted directly from natural objects.

200

What are the 3 main groups of raw material?

Animal origin

Vegetable origin

Mineral origin

300

Name 3 types of technical materials

Wood

Metals

Plastics

Textiles

Stones

Ceramics

400

What are the 3 main properties of materials?

Technical, General, and Ecological Properties 

500

True or False: Qualities determine the behavior of materials when subjected to external forces.

True.

Wood and Derivatives

100

What is the name of the outer layer of a tree trunk?

Bark

200

What are evergreen trees?

Trees that grow quickly, contains a lot of resin. 

300

DOUBLE JEOPARDY (600 POINTS if correct)

True/False

Hardwoods contain a lot of resin and can be of many different colours?

False: Little resin

400

Name 3 uses of Hardwoods

Furniture, Doors, Windows, Parquet floors, Boats, Musical instruments

500

Name 4 uses of softwood

Buildings, Boats, Simple furniture, Boxes, Paper

Wood and Derivatives

100

Define “wood”.

Wood is a raw vegetable material that comes from the trunks of trees and bushes.

200

DOUBLE JEOPARDY: (400 points if answer is correct)

 True or False:

Wood is classified into two types: Lightwoods and Darkwoods.

False. Wood is classified into Hardwoods and Softwoods.

300

Name the 6 steps to obtain wood.

1) Logging & pruning, 2) transportation, 3) stripping the bark, 4) making planks, 5)drying, 6) planing.

400

Name the 2 properties of wood.

Physical and Ecological Properties.

500

DOUBLE JEOPARDY: (1000 points if correct)

What are the 2 wood derivatives called?

1) Engineered woods, 2) Cellulose Materials

Metals

100

What is an 'alloy'

A metal made by combining/mixing two or more metals.

200

When is open-pit mines used?

When the mineral layer is near the surface.

300

Give at least two examples of soft metals

Tin, lead, zinc

400

Name 5 properties of metals

Conductivity, Ductility and Malleability, Toughness,

Fusibility, Expansion and Contraction, Magnetism, Renewable, Recyclable and Reusable, Toxic

500

These metals are good electrical and thermal conductors. 

Aluminum and Copper

Metals

100

Define “metal”.

Metal is a technical material that comes from minerals contained in rocks which can be obtained in nature.

200

When is deep underground mining used?

It is used when the mineral is deep below the surface.

300

Give at least two examples of hard metals.

Steel, titanium

400

Most metals come from _______. 

Ore

500

True or False: objects rust when oxidation occurs.

True.  Metals react with oxygen in air and water. Most of them rust when they come into contact with air and oxygen.