GCSE Core Chemistry

Exam tip; When asked about the properties Exam tip; When asked about the properties DO NOTDO NOT include cost. This is include cost. This is NOTNOT a property of a substance a property of a substance

KeywordsKeywords::

Alloy, mixture, shape memory alloyAlloy, mixture, shape memory alloy

Prior Learning:Prior Learning:Properties of iron and steelsProperties of iron and steels

GCSE Core Chemistry

Exam tip; When asked about the properties Exam tip; When asked about the properties DO NOTDO NOT include cost. This is include cost. This is NOTNOT a property of a substance a property of a substance

Learning Objectives:

By the end of the lesson I can: •Alloys are more useful than pure metals.•Many metals in everyday use are alloys. Pure copper, gold Many metals in everyday use are alloys. Pure copper, gold and aluminium are too soft for many uses and so are mixed and aluminium are too soft for many uses and so are mixed with small amounts of similar metals to make them harder for with small amounts of similar metals to make them harder for everyday use.everyday use.•Smart alloys are memory shape alloys.• • Smart alloys can return to their original shape after being Smart alloys can return to their original shape after being deformed. deformed. • • Evaluate the benefits, drawbacks and risks of using metals Evaluate the benefits, drawbacks and risks of using metals as structural materials and as smart materials.as structural materials and as smart materials.

GCSE Core Chemistry

Exam tip; When asked about the properties Exam tip; When asked about the properties DO NOTDO NOT include cost. This is include cost. This is NOTNOT a property of a substance a property of a substance

SMART DEMONSTRATION

WHAT WHAT IS IS

HAPPENING?HAPPENING?

GCSE Core Chemistry

Exam tip; When asked about the properties Exam tip; When asked about the properties DO NOTDO NOT include cost. This is include cost. This is NOTNOT a property of a substance a property of a substance

Pick your dodgeball team

Iron Copper

SilverBrass

Bronze

Aluminium

Tin

GoldZinc

CopperSMA

TEAM:TEAM:METALMETAL

TEAM:TEAM:ALLOYALLOY

GCSE Core Chemistry

Exam tip; When asked about the properties Exam tip; When asked about the properties DO NOTDO NOT include cost. This is include cost. This is NOTNOT a property of a substance a property of a substance

Research & Presentation1. You have 15mins to produce an A5 set of notes & a question

that checks for understanding. You will need to include;• Definition of an alloy• An example of the alloy• Properties of the alloy• Uses of the alloy

2. You will be asked to TEACHTEACH about your alloy to 2 others so that you all gain an understanding of the 3 types of alloys.

– Copper & its alloys (p44)– Gold, Aluminium & their alloys (p45)– SMAs (p45)

GCSE Core Chemistry

Exam tip; When asked about the properties Exam tip; When asked about the properties DO NOTDO NOT include cost. This is include cost. This is NOTNOT a property of a substance a property of a substance

Learning Objectives:

By the end of the lesson I can: •Alloys are more useful than pure metals.•Many metals in everyday use are alloys. Pure copper, gold Many metals in everyday use are alloys. Pure copper, gold and aluminium are too soft for many uses and so are mixed and aluminium are too soft for many uses and so are mixed with small amounts of similar metals to make them harder for with small amounts of similar metals to make them harder for everyday use.everyday use.•Smart alloys are memory shape alloys.• • Smart alloys can return to their original shape after being Smart alloys can return to their original shape after being deformed. deformed. • • Evaluate the benefits, drawbacks and risks of using metals Evaluate the benefits, drawbacks and risks of using metals as structural materials and as smart materials.as structural materials and as smart materials.