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This song explains how the decay of a radioisotope has a half-life and how to use that half-life to solve decay problems. Corny but clear science. May appeal to some students!

Jane Poynter: Life in Biosphere 2

"http://yt.cl.nr/yxFazy_vDhE" The ocean -- it is the most prominent feature on Earth, and of immeasurable importance to life on the planet. But what would it look like if all of the water was drained out of it? Mountains and valleys that dwarf Everest; shifting plates and undersea volcanoes; seams, ripples, and plains.

Synthetic biology and the rise of the 'spider-goats' Horizon presenter Adam Rutherford looks at the advances in synthetic biology and genetic engineering that have resulted in, among other things, computer-made life forms and cancer assassin cells

The Cambridge IGCSE Physical Science syllabus helps learners to understand the technological world in which they live, and take an informed interest in science and scientific developments. They learn about the basic principles of Physical Science through a mix of theoretical and practical studies. Learners also develop an understanding of the scientific skills essential for further study at Cambridge International AS and A Level, skills which are useful in everyday life. As they progress, learners gain an understanding of how science is studied and practised, and become aware that the results of scientific research can have both good and bad effects on individuals, communities and the environment.

"http://yt.cl.nr/cwgGJaNlGKM" Beautiful footage of microscopic organisms set to inspiring music.

Suitable for Preliminary Biology - Life on Earth Topic

Watch http://www.youtube.com/watch?v=CDWKAAxL10Q to get the most out of this site.