The background radiation worksheet could be used here.
Only now are students introduced to an explanation at an atomic level. The animations from the programme would be useful in this lesson.
Larger-than-life concepts such as prehistoric time, half-life properties and decay functions can be wrestled down to understandable portions using lesson plans provided by educational and state agencies for free online.
Engaging middle school students in hands-on activities makes learning fun, increasing retention rates and the ability to integrate radiometric dating concepts with larger scientific and mathematical concepts later on.
Answer key available to classroom instructors with verifiable email addresses.
Helping college students understand how we determine the numerical ages of rocks, the fossils they contain, the Earth, and the solar system can be difficult, but such questions are central to the science of geology and certainly deserve the effort.
What I found through a short survey of introductory college-level books was that only a small fraction (about 5%) of books include a graph showing the exponential increase of daughter/parent ratio with age, and that relatively few (only about 20%) present the fundamental equation for dating.
They observed that most of the alpha particles went directly through the foil.
(Since the particles are too small to be seen, it was necessary to deduce their sizes by other means in both of these instances.) This experiment is best used by students working in pairs.
Grade Level 5-12 Disciplinary Core Ideas (DCI, NGSS) 5-PS1-1, MS-PS1-1, MS-PS1-4, HS-PS1-8 Time for Teacher Preparation 40-60 minutes – To make the Rutherford boards 40-60 minutes – To prepare for the classroom Activity Time: 40-60 minutes (1 Class Period) Materials Objective Students will try to determine the shape of an unknown object by using the scientific thought process of creating a hypothesis, then testing it through inference.
It is based upon the Rutherford Gold Foil Experiment where scientists discovered that the structure of the atom includes the nucleus in the center surrounded by electrons in empty space.
It is a great introduction to the scientific process of deducing, forming scientific theories, and communicating with peers.
Description: With the Mini Rutherford Activity, students deduce shapes and sizes of unseen objects by tracking the movements of objects they can see, in relation to the unseen object.