ScienceBlog

Supporting 21st Century Science GCSE

ScienceBlog

Scienceblog.org is our own portal for students and teachers. It brings all our latest articles, free images, newsfeeds, downloads, multimedia resources, and weblinks relevant for the study of  21st Century Science. This site is o­ne of  number of complementary websites we have developed for science education. All developed using wonderful Open Source software!

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GM Foods

Looking for an introduction to GM Foods?






Genetically modified (GM) food is a term mainly associated with the production of crops. These crops have had their genetic structure altered by the introduction of genes from other plants, animals or bacteria.


"Genetically modified (GM) foods are foods made from genetically modified organisms (GMO) that have had their DNA altered through genetic engineering. GM foods were first put on the market in the early 1990s. The most common modified foods are derived from plants: soybean, corn, canola, and cotton seed oil.

Controversies surrounding GM foods and crops commonly focus on human and environmental safety, labeling and consumer choice, intellectual property rights, ethics, food security, poverty reduction, and environmental conservation."
(Source: Wikipedia)

In the 1980's there was increased interest in the process of transfer of genetic information from o­ne organism to another. The process known as "gene splicing" was developed, in which new genetic information was added to form new protein with new traits. This enabled scientists to be able to develop new crops which were more resistant to disease and/or insects.

In the USA, most of the GM crops are soybeans or corn. Almost 70% of the total GM crop production in the world occurs in the United States.

As with many new scientific research, especially those involving genetic manipulation, there are arguments for and against the developments

Further information:

GM Crops Debate
Biotechnology in Crops: Issues for the Developing World
Genetically Modified Foods: Are They a Risk to Human/Animal Health?
Foods Standards Agency:GM Debate
Seeds of Deception
Food under the Microscope
The campaign.org/
GM Crops Debate







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Online Revision: Materials Module

Looking for revision activities o­n the (Applied) Materials Module?  Here are some exercises you can try.....



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Updated Online Revision for Communications

Just when you thought it was all over....here is the updated set of revision activities for Communications Module (Applied)

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Earthquake hits UK: Kent

It is not often the UK is hit by an earthquake. It becomes headline news, even though minimal damage is done, compared with more severe earthquakes in other parts of the world

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Online Revision: Communications

Here is a set of  interactive o­nline activities for the Communications (Applied) Module .....

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Evidence for Extraterrestrial Impacts...

Here are some images you can use in your project about extraterrestrial impacts. These latest images were taken in April 2007 at Meteor (Barringer) Crater, Arizona

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Online Revision: 21st Century Science

Here are some o­nline revision activities for a number of  topics in 21st Century Science

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Revision Time for 21st Century Science: Life Care

Here are a number of o­nline activities to help you with your revision for Life Care

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Polonium-210

What exactly is Polonium-210, and why is it so deadly?

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Global Dimming (Part 1)

A recently discovered  phenomenon, Global Dimming, is now being recognised by scientists as real, and needs to be addressed urgently....

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Airline Air Quality: What is the problem?

Your flight journey for that healthy vacation could be very unhealthy. After all, you have to breathe! What exactly are you breathing?

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Public Library of Science (PLoS)

PLoS is a nonprofit organization of scientists and physicians committed to making the world's scientific and medical literature a freely available public resource.

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Lichens

Lichens are powerful indicators of air pollution

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New Image Gallery

Looking for images for your lessons or projects?  Our latest Image Gallery contains thousands of images.....for students and teachers.

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Balancing chemical equations

Looking for help for balancing chemical equations?  Here are some useful interactive websites .....

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Demonstrations of Reflection, Refraction and Diffraction

Here are some useful interactive resources for demonstrating and investigating reflection, refraction, and diffraction

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Interactive simulations of evolution processes

Here is a collection of o­nline resources for interactive simulations of evolution processes....

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Evidence for Evolution

Here are some useful o­nline resources for a study of  'Evidence for Evolution'

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AM and FM Interactive Resources

Try these interactive resources for investigating how Amplitude Modulation (AM) and Frequency Modulation (FM) works....

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Adaptation and Natural Selection

Here are some useful resources for the teaching of Adaptation and Natural Selection

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