English
EN1 Speaking and listening
Listen to and discuss some environmental fiction such as The Iron
Woman, The Iron Man or The Paperbag Prince.
Listen to and discuss environmental poetry about living things and life
cycles, then use this as a stimulus for writing poetry.
As part of a study of glass and reflections, listen to the Greek myth,
Echo and Narcissus. From this discuss self image and self esteem to
support work on autobiographies or character studies.
Key Stage 2
National Curriculum
Planning Sheet
EN2 Reading
Write letters to appropriate environmental organisations. Read and
use this information for research projects about recycling.
Write reports about issues of recycling that may be read aloud and
filmed to create an information video.
Ideas for a
Recycling Project
EN3 Writing
Write letters to organisations such as Waste Watch to find out further
information about recycling.
Write an environmental message to put in a bottle.
Write instructions about how to use a glass collection bank correctly.
Write a guidance pamphlet for a school recycling scheme.
Write spiral or circular shaped poems about a product life cycle.
Look at the origins of the word recycle and collect other words
beginning with “re”.
Write a story with recycling or waste as a focus and make it into a
book with a recycled paper cover.
Write and present posters to persuade people to recycle waste. Then
display these in school or on noticeboards in the local community.
National Curriculum EN 1, 2, 3
Maths
Science
MA2 Number
Use the Amazing Glass Number Facts Worksheets as a focus for
solving and recording mental maths problems.
Use collected data such as amounts of waste produced in school or
home to form simple word problems for the class to solve.
Work out fractions or percentages of the weight of different types of
waste compared to the total waste produced at home or in school.
SC1 Scientific enquiry
Carry out investigations into properties and uses of materials.
Discuss the potential for recycling each material.
MA3 Shape, space and measures
Estimate amounts of waste likely to be produced by the class or
school in one week.
Weigh and record levels of waste produced at school or home.
Look at and create some line or rotational symmetry patterns. Relate
this to rotational movement and angles.
Analyse the dimensions of circles.
Create patterns using whole or fractions of circles.
Collect packaging and analyse the 2D and 3D shapes and angles.
Use this information to help design and accurately draw some
packaging for a specified item.
Use ICT to design packaging for a specified item, using the minimum
amount of materials possible.
SC2 Life processes and living things
Study the circulatory system in the body as an example of recycling.
Study animal and plant life cycles.
Set up a compost-making experiment and monitor the results.
SC3 Materials and their properties
Group and classify different materials.
Explore effective ways of separating out a collection of materials, e.g.
glass, plastic, etc, to enable them to be recycled.
Describe the reversible or non-reversible changes in materials
caused by heating or cooling.
Group materials according to the properties that enable them to be
recycled.
Look at change and separation of materials.
Study the water cycle and the effects that people may have upon it.
Look at the pollutants of water and make a filter to enable recycling of
dirty water.
MA4 Handling data
Collect data to show levels and types of waste produced at home or
school. Present the information collected in appropriate graphs or
charts. Analyse the data to look for patterns and answer specific
questions.
Use this information to support a school campaign to reduce waste or
implement a recycling scheme.
Input this information onto computer databases and use it to create
graphs and charts for analysis.
Analyse calendars over several years to find cyclical patterns.
SC4 Physical processes
Set up different electrical circuits.
Explore magnetism of materials and the relevance of this to recycling.
On the theme of glass, explore light and creation of shadows.
Explore reflections and light using mirrors and lenses.
Make kaleidoscopes or periscopes with recycled materials.
Explore the cycles created through planetary activity such as day and
night, months and seasons.
National Curriculum MA 1, 2, 3, 4
National Curriculum SC 1, 2, 3, 4
Observe health and safety guidelines in all science activities.
© Rockware Glass Ltd 2000
Geography
Design and Technology
Do a survey of the quality of the local area, including litter counts,
number of recycling points, etc. Then use this to create a plan with
ideas for improvements and send it to the local council.
Map recycling points in the local area.
Invite the local recycling officer to visit the school and explain local
policy.
Illustrate, in cartoon form, the process of recycling glass. Use the
Glass Forever! web site to find out this information.
Look at the impact of a local landfill site and explore the alternatives
to this.
Have a meeting about where to put a landfill site with individuals
taking on the roles of people with different interests in the site.
Look at reasons for the location of specific industries that use natural
or recycled materials, eg the glass industry.
Design and make a litter-picking device or a model of an innovative
new glass or can recycling bank.
Set up an effective compost heap or wormery and use the finished
product in the school grounds.
Re-use materials, eg card or newspapers, to make a new product or
structure.
Examine packaging and then for a specific item, design and draw a
net to package it using the minimum amount of materials.
Look at toys made from waste materials by children in other countries
and use this to stimulate a design project about toys using recycled
or re-used materials.
Experiment making new paper from old paper or other re-used
fibrous materials.
Research and try out methods of repairing materials or objects.
National Curriculum 1, 2, 3, 4, 5, 6, 7
National Curriculum 1, 2, 3, 4, 5
Information and Communication Technology
PSHE & Citizenship
Find out information about recycling glass using the Glass Forever!
web site or by sending e-mails to environmental groups.
Set up a database to record the waste produced by individuals in a
class, school, home or community.
Draw graphs or charts to show the amount of waste produced by a
class, school, home etc.
Design and present leaflets or posters persuading people to re-use,
recycle, repair or reduce the use of waste materials.
Set up school compost heaps and use ICT equipment to monitor
temperature changes.
Use ICT to monitor and record temperatures in the school building with
a view to reducing energy use as part of a whole school environmental
audit.
Take part in a debate about the impact of quarrying on Planet Earth.
Become involved in a school or community project to recycle, repair
or re-use old materials. Hold a bring-and-buy sale.
Use the Glass Forever! web site to explore the safety regulations
necessary in a glass recycling factory.
Focus on individuals’ skills or talents then complete an imaginary
application form for any manufacturing job that they would like to do
that utilises their strengths.
Interview different members of the school staff about their particular
job and then write a job description.
Write safety rules for a factory or school, or create a school or
community “caring for the environment” code.
National Curriculum 1, 2, 3, 4, 5
National Curriculum 1, 2, 3, 4, 5
History
Art
Study the history of waste disposal.
Look at the use of different materials over time and the development
of synthetic materials.
Research the history of glass making including its discovery by
accident.
Study the history of a local factory involved in manufacturing materials
such as glass, pottery, textiles etc.
Explore textures of different materials by doing rubbings,
observational drawings etc.
Look at and appraise Andy Goldsworthy’s use of found materials, or
Antonio Gaudi’s mosaic work.
Make some 3D sculptures or mosaics by re-using found or waste
materials.
Design a new recycle logo.
Use collected textured materials for printing projects.
National Curriculum 1, 2, 4, 5, 7
National Curriculum 1, 2, 3, 4
Music
Physical Education
Listen to and appraise Vivaldi’s Four Seasons or other music about
seasons or cycles.
Create a 3D musical sculpture in the school grounds or make musical
instruments using re-used or recycled materials.
Sing songs in rounds and compose one about recycling.
Use bottles filled with different amounts of water to explore sound.
Explore the sounds created by different materials and use them to
compose a textured piece of music.
Do circle dances or games.
Do a movement to music about the cycle of plant life through the
seasons.
Compose and perform a movement presentation based upon the story
of the Iron Man using music created with instruments made from
recycled materials.
Take part in co-operative and team games in outdoor settings to raise
awareness of environmental issues. This could include studying
habitats in detail to emphasise the impact that landfill could have on an
area.
National Curriculum 1, 2, 3, 4
National Curriculum 1, 2, 3, 4, 6, 7, 11
© Rockware Glass Ltd 2000
Planning Sheet for Key Stage 2 Literacy
Year 3 to Year 6 Glass and Recycling Project
Year 3
Term 1
Term 2
Term 3
Fiction and poetry
Stories or poems
Fiction and poetry
Stories with themes
Fiction and poetry
Word puzzles
Poetry that plays with language
Listen to environmental stories or poems.
Collect key words about glass or recycling.
Write an acrostic poem based on one of these collected words.
Use environmentally themed stories as shared texts, eg The Glass
Cupboard or The Paperbag Prince.
Write a story with an environmental moral, concentrating on creating
interesting descriptive sentences.
Write poems about breaking glass using onomatopoeia.
Create a word collection including adjectives, verbs and nouns
about recycling.
Do crosswords, wordsearches or puzzles about glass as a material,
glass making or recycling.
Non-fiction
Information texts
Non chronological reports
Non-fiction
Instructions
Non-fiction
Letters
Encyclopaedias
Indexes
Use copied extracts from the Glass Forever! web site as a focus for
shared reading of information texts.
Write reports based on this information, focusing on sentence structure
and variation of initial words for each sentence.
Write instructions on how to use a bottle bank correctly.
Write a recipe with instructions about how to create the ideal world.
Write letters to, or e-mail organisations to find out about recycling and
then use the replies to help with a project that encourages recycling.
Find out information about recycling using the Glass Forever! web site
or reference books.
Use the indexes of information books to trace specific facts.
Term 1
Term 2
Term 3
Fiction and poetry
Short novels
Poems on common themes (environment)
Fiction and poetry
Stories (imagined worlds)
Modern poetry
Fiction and poetry
Stories that raise issues
Range of poetry
Listen to short stories about the environment eg The Iron Woman or
The Paperbag Prince, then write a story based on an environmental
theme.
Listen to some environmental poetry then write a poem using a
particular identified form of poetry.
Listen to stories or poems of imagined worlds and write a creative piece
about their own imaginary or ideal world.
Listen to and appraise modern poetry written in different forms. Write a
poem of how they imagine that the world could be in the future.
Listen to an environmental story with a moral such as The Glass
Cupboard and explain the meaning and the issues raised in the story.
Listen to a variety of poems from collections such as The Last Rabbit.
Write a poem about a species endangered by human activity.
Non-fiction
Newspaper and magazine articles
Instructions
Non-fiction
Information texts
Explanations
Non-fiction
Persuasive writing
Adverts, circulars, flyers
Debates
Information texts
Look for articles about environmental issues on websites or in
newpapers to copy and use as focus texts for shared reading.
Write instructions to explain how you could re-use a glass container in a
creative way; eg for homemade jam.
Use the Glass Forever! web site to find out and answer questions about
glass production and recycling.
Use the Glass Forever! web site to research information and then write
an explanation of how glass is made.
Write an information booklet to guide people on recycling.
Read and appraise a selection of information leaflets produced by
Rockware Glass and other organisations.
Write your own leaflet, advert or circular to persuade people to recycle
glass.
Prepare and represent a particular interest group in a role play debate
about recycling or landfill issues.
Year 4
© Rockware Glass Ltd 2000
Year 5
Term 2
Term 3
Fiction and poetry
Novels, stories and poems by significant authors
Plays
Concrete poetry
Fiction and poetry
Traditional stories
Myths
Fiction and poetry
Novels, stories and poems from a variety of cultures
Choral and performance poetry
Listen to the Iron Man or Iron Woman stories by Ted Hughes. Write a
story about environmental decay or renewal.
Using pieces of waste or clay, construct a sculptural poem of words that
describe glass.
Read the Greek myth Echo and Narcissus then focus on “looking in the
mirror”, “reflections” or “me” for follow up descriptive work. Use this to
write their own brief autobiography.
Select stories to adapt and include an environmental message.
Read a selection of extracts about environmental issues from Once
Upon a Planet.
Read some choral poetry, then write and perform a poem based on an
environmental issue.
Non-fiction
News reports
Instructional texts
Rules, recipes, directions
Instructions, explaining how things are done
Non-fiction
Non-chronological reports (describe and classify)
Explanations of processes, systems and operations
Non-fiction
Persuasive writing to put forward or argue a point of view: letters,
commentaries, leaflets to persuade, criticise, protest, support, object or
complain
IT sources
Read and look at the presentation of some recipes. Write the recipe
and instructions for making glass.
Use the Glass Forever! web site to research recycling and develop a
pamphlet to explain the need to recycle.
Collect newspaper cuttings about environmental issues. Use these as
a focus for shared reading and follow up work.
Use reports from environmental magazines as a focus for shared
reading.
As follow up work the children could write a report about general
sustainability issues and use these as articles for a class magazine.
Use the Glass Forever! web site to research and then explain the
process of glass recycling.
Write to various environmental organisations to find out information
about recycling. Use this as a focus for persuasive writing.
Design and write a leaflet persuading people to recycle glass bottles.
Use the Internet to search the Glass Forever! web site for information
on glass and recycling.
Term 1
Term 2
Term 3
Fiction and poetry
Classic fiction, poetry and drama
Fiction and poetry
Longer established stories and novels including mystery, humour,
science-fiction, historical or fantasy worlds
Fiction and poetry
Non-chronological reports
Use the Iron Man, Iron Woman or another appropriate environmentally
biased text as a focus for shared reading.
In small groups or as a class write a short play with an environmental
theme to be performed to an audience.
Read or listen to some science fiction texts.
Collect ideas about technological developments that could be used to
create the future world that they would prefer. From this write a short
story about life in the year 3000.
Listen to, or read, humorous or fantasy poems. Select either genre to
write a poem about ‘Planet Earth in the future’.
Read a selection of magazine reports or explanatory texts covering
specific sustainability issues then write a report for a local newspaper
about an issue of particular interest.
Research information from the Glass Forever! web site to write a report
to be presented as a video advising people on the benefits of recycling
glass.
Non-fiction
Diaries, journals, letters, anecdotes
Records of observations, recount events
Journalistic writing
Non-chronological reports
Non-fiction
Discussion texts
Formal writing, notices, public information documents
Non-fiction
Reference texts
Dictionaries
Thesauruses
IT sources
Read examples of diaries. Write a diary recounting the life cycle of a
bottle.
Use the Glass Forever! web site or write letters to organisations to find
out information about recycling or landfill; use this and other research to
write a report for a school magazine or local newspaper.
Read and assess a discussion text such as a planning application for a
landfill site. Write a report to put forward an argument for or against the
proposal.
Look at and discuss the usefulness of some public information texts
then design and write a poster to put on a public noticeboard to inform
the people about recycling issues and how they can get involved.
Examine a variety of texts and IT sources to find out more information
about glass.
Use a thesaurus to find alternative words to describe both the wonders
of the world and the damage occurring in the world.
Use some of these words to write an article describing a photograph of
an area of land recently damaged by human activity.
Term 1
Year 6
© Rockware Glass Ltd 2000
Activity 1 Why Should We Recycle Glass?
Learning Outcomes
! Understand the life cycle of glass
! Know the benefits of recycling glass
Activity Guidance
Worksheet 1
1. Use the Glass Forever! web site to research what new raw materials are needed to make glass and what the
impact of using these is.
2. Discuss how individuals in the class dispose of their own waste glass and other materials.
3. From worksheet 1 photocopy the sentences describing the life cycle of glass. Ask the children to work in
pairs to sequence a set of these in a coherent way. Discuss their ideas and then outline the journey that
glass could take, highlighting the fact that this journey could go on forever! Then discuss what is currently the
usual journey for glass, focusing on waste being dumped in landfill and new materials being quarried to use in
its production.
4. Follow this with a class discussion about the reasons why we should recycle glass and list the benefits of
using waste glass.
5. The children could then complete worksheet 1 to reinforce the process of making and recycling glass.
6. In conclusion encourage the children to recycle materials at school, home or in the local community. The
class could establish a recycling scheme within the school.
National Curriculum Subjects
Geography, English, Art & Design, ICT, PSHE & Citizenship
Activity 2 Where to Recycle
Learning Outcomes
! Understand how to use recycling facilities and know where they are located
! Begin to make choices about their preferred future for the world
Activity Guidance
Worksheet 2
1. Have a general discussion about recycling and establish whether any of the group recycle and if so what do
they recycle and where. If they do not know where to recycle materials they could be asked to find out by
writing letters to their local council, asking friends and family or by a class walk to survey the local area.
2. Information about what they recycle could be recorded in chart or graph form.
3. The group could then look at the graph from worksheet 5 showing the recycling performance of the United
Kingdom compared to other European countries. This could lead on to a discussion about why the UK
recycles a relatively low amount of glass. Gather and record suggestions of how we could improve our
recycling performance as individuals or as a nation.
4. The discussion could then focus on materials and the properties that they possess that make them ideal for
recycling.
5. The children could be introduced to the 4 Rs - reduce, recycle, re-use or repair to highlight that there are
other issues about waste creation and disposal that need to be considered.
6. Work through worksheet 2 to design a container that encourages people to recycle all glass packaging.
Compile a list of rules as guidance for using a glass recycling bank effectively. The Glass Forever! web site
can be used to help the group in this task.
7. In conclusion, encourage children and their families to use their local recycling facilities. This could be done
through designing, making and displaying posters showing where to recycle different materials.
National Curriculum Subjects
Science, Maths, Design & Technology, English, Geography, ICT, PSHE & Citizenship
© Rockware Glass Ltd 2000
Activity 3 Making Glass
Learning Outcomes
! Know what new materials are used to make glass and the impact of using these
! Understand the need for working in a safe environment
Activity Guidance
Worksheet 3
1. Use the Glass Forever! web site to find out what new materials are needed to make glass. Also, find out and
discuss the impact on the natural world of using new materials.
2. Find out and discuss why it is better to recycle waste glass packaging into new containers.
3. Discuss the kinds of jobs that need to be done in glass recycling and making factories. This discussion could
also focus in on the skills that they possess and the kinds of jobs that they think they would be good at. They
could visit the Rockware Glass Recycling Education Centre to see a working factory in action.
4. Focus in on safety at work and ask the children to complete worksheet 3 by drawing the correct safety
equipment and the reasons for using each item.
5. Emphasise the importance of safety and ask the children to work in small groups to develop a list of safety
rules for the school environment.
6. As follow up work children could be asked to write a job application form for a job that they would like to do.
This would help them to understand the importance of developing skills and gaining knowledge but also
remind them of the talents that they possess.
National Curriculum Subjects
English, Science, ICT, PSHE & Citizenship
Activity 4 Amazing Glass Facts
Learning Outcomes
! Choose and use appropriate number operations to solve problems using both mental and practical skills.
! Solve story problems using real facts then explain and record how they solved the problem.
Activity Guidance
Worksheets 4 and 5
1. The Amazing Glass Number Facts worksheets 4 and 5 can be used at the beginning of the numeracy hour as
a focus for mental arithmetic questions. The facts cover different aspects of the maths curriculum.
Here are some questions that could be posed, adapted or added to:
• How many bottles could a town with 10 bottle banks collect if each bottle bank was full.
• How many bottles or jars would 5 average families consume in a year?
• How much waste would you create in one year? (You will need to know what your own body weight is in
kilograms.) How much waste would the whole class create in a year?
• How many bottles are about equal to a 10 kilogram weight? (Multiplication tables for numbers 3 or 10.)
• How many bottles does the Rockware factory at Knottingley produce every 2, 4, 6, 8 or 10 minutes? (Focus
on the multiplication table for the number 4.) How many do they produce in 1 hour or 1 day?
• If you produce around 10 kilograms of rubbish in one week, about how much of this could be made of glass?
2. Weight - Use of scales and standard units
• Weigh various glass containers, record their weight and work out how many containers would be equal to one
kilogram then one tonne. Use local glass collection figures to calculate the amount of containers consumed
locally.
• Use this information to support an English project to create posters and leaflets that raise awareness of the
need to recycle for display in the local community.
3. Data Handling - Creating and interpreting graphs and charts
• Pupils create graphs or charts using the figures given on worksheet 4 or 5.
• They can then interpret the results and suggest ways of increasing levels of recycling.
National Curriculum Subjects
Maths, Science, Geography, ICT, PSHE & Citizenship
© Rockware Glass Ltd 2000
Where to Recycle
Worksheet 2
Glass is a valuable material and if we recycle it our reward will be a cleaner and more beautiful world.
It is very important that we all help to collect glass and other materials to be recycled.
1.
Design and name a container that would encourage people to recycle their used jars and bottles.
My Design
The name for my container design is ...
2. Write some rules below to help people to use this container.
•
__________________________________________________________________________________________________________
•
__________________________________________________________________________________________________________
•
__________________________________________________________________________________________________________
•
__________________________________________________________________________________________________________
•
__________________________________________________________________________________________________________
•
__________________________________________________________________________________________________________
Try to Remember the Four Rs
Reduce
Recycle
Re-use
Repair
Buy products with less packaging
Recycle your waste
Try to re-use your waste
If possible repair things rather than buying new
© Rockware Glass Ltd 2000
Making Glass
Worksheet
Worksheet 3
Use the Glass Forever! web site to find out how glass is made and recycled.
The factories that recycle and make the glass can be dangerous places to work
so it is very important that workers follow safety rules.
1. On the body shape below draw the safety clothing that a worker should wear.
Safety glasses
Ear defenders
Gloves
Protective clothing
Safety shoes
2. Can you think of the reasons why a worker should wear these things ?
Write your ideas under each heading.
3. Think about ways that you can keep yourself safe.
Talk to your friends and write below a list of safety rules to follow in your classroom.
Classroom Safety Rules
______________________________________________________
_____________________________________________________
_____________________________________________________
_____________________________________________________
_____________________________________________________
© Rockware Glass Ltd 2000
Amazing Glass Facts
Worksheet 4
It takes around 3000 bottles or jars to fill a bottle bank.
On average, every family in the UK consumes
around 500 glass jars or bottles each year.
3 jars or bottles weigh about 1 kilogram.
Around 8% to 10% of the weight of waste in an average
household dustbin is glass.
The Rockware factory at Knottingley produces around 2000 bottles
or jars every minute of the day, every day of the year.
All of the waste that you create in one year would weigh
about ten times as much as you do.
6 billion glass containers are used in the UK every year
but only about 30% of these are recycled.
About 4000 bottles or jars make up
1 tonne of glass.
At present the average glass jar or bottle contains about 30%
recycled glass.
It takes 5 seconds to make
one bottle.
© Rockware Glass Ltd 2000
Amazing Glass Facts
Worksheet 5
Percentages of glass recycled by each of these countries in 1999
U nited
K ingdom
S witz erland
Portugal
G ermany
Italy
F rance
S pain
N etherlands
Turkey
C ountry N ame
Amount of glass collected and recycled
Country
United Kingdom
Tonnes of Glass Collected
1999
499,000
National Recycling Rate
30%
Switzerland
283,000
93%
Portugal
132,000
42%
Germany
2,845,000
81%
930,000
41%
France
1,750,000
55%
Spain
575,000
40%
Netherlands
397,000
86%
Turkey
95,000
25%
Finland
41,000
78%
Italy
Figures from British Glass
Contents of an average household dustbin – 1993
Paper and cardboard
33%
Organics
(Compostibles such as fruit and vegetable waste)
20%
Metals
8%
Glass
9%
Plastics
11%
Textiles
4%
Others
15%
Total
100%
The percentages were calculated from the weight of the contents.
Figures from Warren Spring Laboratory - 1993
© Rockware Glass Ltd 2000
F inland
Why Should We Recycle Glass?
Worksheet 1
Follow the recycling journey to see how easy it is to recycle our waste glass. This journey could go on forever.
Draw cartoons to illustrate each part of the journey.
The empty bottles and jars
are put into bottle banks.
People choose and
buy the product that
they wish to use.
Lorries collect the glass
from the bottle banks.
The waste glass is
dumped in large heaps at
the recycling factory.
The filled jars are then
taken to supermarkets
and stacked onto the
shelves.
The glass is sorted to
remove any other
materials such as
plastic and metal.
The bottles and jars are transported to
factories to be filled with food and drink.
The sorted glass (called cullet) is melted in a
furnace and made into new glass containers.
Good reasons to recycle glass
There is less damage to the land
because we do not need to use
newly cut rock
Less electricity is
needed
to melt waste glass
Using less energy means less
fuel is burnt so the air stays
cleaner
© Rockware Glass Ltd 2000
Land is protected because we do not
dump our waste glass in holes in the
ground
Teachers’ Notes for the Glass Forever! resources
The sheets included on the Glass Forever! web site have been developed to support the teaching of
recycling issues to Key Stage 2 pupils.
Used in conjunction with the Glass Forever! web site these materials can illustrate for your pupils the
benefits of recycling.
The Glass Forever! web site aims to help you pupils to:
!
!
!
!
be aware that glass can be recycled an infinite number of times;
recognise the need for glass recycling and understand the environmental benefits associated with it;
realise that everyone has a role to play in recycling bottles and jars;
see how a large industry can contribute to sustainable development.
These aims link to the National Curriculum in a variety of ways.
Contents of the Glass Forever! Education Package
! Ideas for a Recycling Project – Ideas for a term or half term study of recycling
! Literacy Guidance – Ideas for educational activities based on the National Literacy requirements for
each year group in each term.
! Glass and Glass Recycling – A brief overview of the history of glass, glass making processes and
the benefits of recycling glass.
! Activity Guidance and Worksheets
Activity 1
Worksheet 1
Activity 2
Worksheet 2
Activity 3
Worksheet 3
Activity 4
Worksheets 4 and 5
© Rockware Glass Ltd 2000