Radioactive dating lesson plan benefits to consolidating debt
It is a great introduction to the scientific process of deducing, forming scientific theories, and communicating with peers.
It is also useful in the mathematics classroom by the process of graphing the data.
The exercise they will go through of working backwards from measurements to age should help them understand how scientists use carbon dating to try to determine the age of fossils and other materials.
To be able to do this lesson and understand the idea of half-life, students should understand ratios and the multiplication of fractions, and be somewhat comfortable with probability.
The electric force between the nucleus and electrons holds the atom together.Scientist Britt Argow talks with teacher Joe Reilly about how scientists can determine the approximate age of a rock: comparing the relative abundance of naturally-occurring radioactive elements to their decay products.Radioactive elements break down over time into another element at a known rate, called a "half-life." The "half-life" is the amount of time it takes for half of the radioactive element to change into another element.For example, in a given sample of rock, after 713 million years, half of the originally-present uranium-235 will be changed to lead: this is the "half-life" of uranium-235. Origin and Evolution of Earth System: Geologic time can be estimated by observing rock sequences at various locations.After another 713 million years, half of what was left will have decayed, etc. Current methods include using the known decay rates of radioactive isotopes present in rocks to measure the time since the rock was formed.
Technology is essential to science, because it provides instruments and techniques that enable observations of objects and phenomena that are otherwise unobservable due to factors such as quantity, distance, location, size, and speed.