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A
look at groundwater’s
critical role in our
environment!
Gain insight into the link
between water and life; the
physical states of water; the
amount of water available on
Earth; and water’s value as
an indispensable resource.
The importance of water in
biology, chemistry and geology
is never fully exploited
within science classes. The
opportunity to develop a unit
on the water cycle is
supported by this video
resource. This program
explores the importance of
water, its cycle, forms and
importance through the use of
visually-engaging animations,
diagrams and examples.
This video covers the following
topics:
- water and its
importance to life
- the blue planet -
water and the Earth
- water use and history
- oceans and the
moderation and transfer
of heat
- process and the water
cycle
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A
look at groundwater’s
critical role in our
environment!
Study the intricate process
of groundwater infiltration.
Your class will learn how the
rate of penetration is
dependent upon soil porosity
and permeability; the various
types of underground water
storage; the movement of
groundwater; and how it
ultimately makes its way back
to the surface.
Animations, diagrams and
examples are combined to
produce a visually-engaging
treatment of this important
subject. The following topics are covered in
this video:
- underground water aquifers
or water reserves
- rock strata and the types
of aquifers
- how water enters the soil
and the movement of water
through the soil
- rates of infiltration
- differences between
subsurface water zones
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A
look at groundwater’s
critical role in our
environment!
Learn how groundwater
becomes contaminated; the
consequences of this
pollution; and means of its
remediation.
The degradation of our
groundwater resources
potentially affects more than
25% of the world’s supply of
fresh water. This video, the
third in the Water Science
Series, targets specific
issues and solutions in our
management of this scarce and
vital resource.
This program, through the
use of animations, diagrams
and examples, provides a
visually engaging teaching
resource.
Topics discussed include:
- how groundwater can
become polluted
- infiltration of
contaminants through a
groundwater system
- salinity and its causes,
including tree clearing
- contamination from land
use and urban waste
- remediation processes
- the use of impervious
soils to seal contaminants
- reafforestation of
cleared agricultural and
range lands
- redirection and
treatment of polluted
water systems
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Salination |
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Media: PAL - 20
minutes |
Shipped in 5 days |
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Causes
& Solutions
Our planet contains an
abundance of water. Why is it
then that the availability of
usable water resources has
been identified as a key issue
for sustainable growth for our
future?
Around 97% of the planet's
water supply is contained in
our oceans. We all know that
the high salt content of
seawater makes it useless for
irrigation or drinking. What
is often forgotten is that all
water and soil contains salts.
The poor use of these
resources can cause an
accumulation of salts which
can be as deadly to plants and
animals as seawater.
Salination, the ‘White
Death’, potentially effects
40% of the world’s
agricultural production. This program, through the use of
animations, diagrams and examples,
provides a visually-engaging
teaching resource.
Topics discussed include
- the problem of rising
salinity in agriculture
- damage to buildings and
industry caused by Salination
- salinity and its causes,
including tree clearing, and
monoculture cropping
- poor irrigation techniques
and Salination
- the rising water table
- remediation processes
- improved irrigation
techniques
- reafforestation of cleared
agricultural and range lands
- diversification in land
use
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This programme describes the landforms associated with coastal erosion and deposition and
discusses their mode of origin. The programme includes original shots of areas of the British
coastline showing classic erosional and depositional landforms. |
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This programme introduces the processes involved in marine erosion and transportation. It
includes sections on the action of the sea, erosional and transportational processes and the
removal of beach material. It includes shots of processes in action on British coasts.
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Drainage
Basin Landforms |
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Media: DVD - 16 minutes |
Shipped in 7 days |
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This programme gives a general model for differences in drainage basin morphology and
river type from source to mouth. It deals with the common landforms associated with river
channels and their immediate surrounding drainage basins, in both the upper and lower
courses. |
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This programme introduces the processes involved in glaciation. It includes sections on ice
formation, the physical character of ice, internal processes in the ice, corrie
formation and glacial erosion. Original film of modern alpine
glaciers enables pupils to see the processes in action. |
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This programme introduces the hydrological cycle as a system. It then concentrates on the
role of water movement through the system by focusing on hydrological processes in rivers.
The programme includes original film of rivers and shots taken from a flume tank to
demonstrate transportational processes. |
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This programme introduces the processes of glacial deposition, and erosional and
depositional landforms. It follows on from the Ice Formation and Erosion programme by
studying landforms resulting from the processes discussed. The programme includes original
film of classic landforms in North Wales. |
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Six programmes designed to introduce processes and landforms associated with rivers,
coasts and glaciers. The programmes may be used to introduce, summarise or revise topics
in the classroom or to introduce fieldwork. The subject is brought alive by combining clear,
concise explanations with quality visual images. All the material is original including classic
examples from British coasts and rivers, alpine glaciers and British glacial landforms. The
programmes are available separately, or on a single video cassette as the GCSE Physical
Geography Series. Each individual programme is approximately 15
minutes long.
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This programme describes and explains the different layers within the earth. It covers the
classification of extrusive and intrusive igneous rocks and how crystal size can indicate mode
of formation. The programme illustrates the erosion and transportation of igneous rocks
leading to the formation of sedimentary rocks, thus introducing the rock cycle. It also looks at
how the shape and size of particles in sedimentary rocks can tell us how they were formed. |
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This programme shows how to investigate soils by digging soil pits and by undertaking a
range of techniques to investigate properties such as acidity, texture, structure and organic
contents. It also covers methods of recording and interpreting the results. |
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This programme covers the definition of a mineral and a rock, how minerals are combined to
form rocks, why minerals have consistent physical properties and how minerals can be
identified by these properties using a range of practical techniques. |
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This programme consists of a comprehensive description of the development of a soil. It
shows individual stages from bare bed-rock through to a fully mature soil with shots of soils
developed on a different parent material.
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NO IMAGE AVAILABLE |
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Weathering |
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DVD - 13 minutes |
Shipped in 7 days |
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This programme covers physical, chemical and biological weathering processes. It
introduces erosion and transportation processes involved in the removal of weathered
material and how soil develops from material remaining in situ.
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This series of programmes covers much of the basic information needed for the study of
Earth Science as part of the National Curriculum for
Science(UK) at key stage 3. The
programmes contain field shots, experiments and microscopy combined with concise
computer graphic explanations. In addition to key stage 3, this video provides a good
grounding for teachers of science at key stages 1 and 2 as well as providing a starting point
for students of key stage 4 and A-level Geology and Geography courses. The programmes
are designed to act as a springboard for further teacher-assisted or self study and
suggestions for follow-up work are given throughout the programmes and as accompanying
notes. The programmes are available separately, or on a single video cassette as the Earth
Science Series. Each individual programme is approximately 15
minutes long.
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