radiometric dating or radioactive dating is a technique used to date materials such as rocks or carbon in which trace radioactive impurities were selectively incorporated when they were formed the method compares the abundance of a naturally occurring radioactive isotope within the material to the abundance of its decay products which form at a known constant rate of decay.
radioactive decay also known as nuclear decay radioactivity or nuclear radiation is the process by which an unstable atomic nucleus loses energy in terms of mass in its rest frame by emitting radiation such as an alpha particle beta particle with neutrino or only a neutrino in the case of electron capture or a gamma ray or electron in the case of internal conversion.
Looking at the table we can draw some conclusions as to what planet properties will determine the type of planet surfacing that can occur impact cratering can occur on.
radioactive elements everything around us is made of elements or different types of atoms while these atoms are way too small to see if you break an object or organism down enough ultimately.
radioactive materials are all around us some are beneficial while others may cause us harm in this lesson youll learn what radioactive materials are and explore where they come from and how.
planet surfaces chapter index in this window chapter index in separate window this material including images is copyrightedsee my copyright notice for fair use practices select the photographs to display the original source in another window.
How do we know how old a fossil is we use carbon as every living being has carbon carbon dating also known as radiocarbon dating is a method of estimating the age of carbonbearing materials up to 60000 years old.
The haspi curriculum resources are available free for use by educators all of the resources align with the next generation science standards ngss and common core state standards ccss.
Heroes and villains a little light reading here you will find a brief history of technology initially inspired by the development of batteries it covers technology in general and includes some interesting little known or long forgotten facts as well as a few myths about the development of technology the science behind it the context in which it occurred and the deeds of the many.