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 ...

Six-mark questions will only appear in the Depth paper. There will be two six-mark questions in the Depth paper. Six-mark questions are extended free-response questions, requiring the longest answers.

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 ...

Elusive black hole radiation predicted by Stephen Hawking may have influenced the way the universe took shape after the Big ...

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 ...