# Radiometric dating assignment 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.The lower down the canyon wall you go, the older the rock layers are.Therefore, fossils found in layers near the top of the canyon are younger than fossils found near the bottom of the canyon.Instead of using exponents and natural logs, the students can just use a graph of predicted decay rates to determine the number of half-lives the isotope has gone through based on this percentage (see graph).For instance, in fossil one, the students will take 15 divided by 60 and come up with the percentage.25 or 25%.

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.

The lower down the canyon wall you go, the older the rock layers are.

Therefore, fossils found in layers near the top of the canyon are younger than fossils found near the bottom of the canyon.

Instead of using exponents and natural logs, the students can just use a graph of predicted decay rates to determine the number of half-lives the isotope has gone through based on this percentage (see graph).

For instance, in fossil one, the students will take 15 divided by 60 and come up with the percentage.25 or 25%.

Students will calculate the percent of remaining parent isotopes using the following equation.