Radioactivity is a part of our earth - it has existed all along. Naturally occurring radioactive materials are present in its crust, the floors and walls of our homes, schools, or offices and in the ...

In this lesson, students will investigate the nature of radioactivity and the effect of both distance and shielding materials on different radioactive sources using a Geiger-Muller tube with a counter ...

Multiple choice questions will appear throughout both exams papers (Breadth and Depth), and at both Foundation Tier and Higher Tier. These questions provide you with a number of answers, from ...

The benefits of radiation and radioactive material used in our society are inarguable. Radiation and radioactive materials are used at the University of Nevada, Reno in education, medicine, and ...

You will sit two exam papers at the end of your GCSE Physics course. Paper 1 is called "Breadth in physics", and paper 2 is called "Depth in physics". Each paper: is worth 50% of your GCSE in ...

There are now at least 13 species of finches on the Galapagos Islands, each filling a different niche on different islands. All of them evolved from one ancestral species, which colonized the ...