A. Energy is involved in all physical and chemical processes. It is conserved, and can be transformed from one form to another and into work. At the atomic and nuclear levels energy is not continuous but exists in discrete amounts. Energy and mass are related through Einstein's equation E=mc2.
B. The properties of atomic nuclei are responsible for energy-related phenomena such as radioactivity, fission and fusion.
C. Changes in entropy and energy that accompany chemical reactions influence reaction paths. Chemical reactions result in the release or absorption of energy.
D. The theory of electromagnetism explains that electricity and magnetism are closely related. Electric charges are the source of electric fields. Moving charges generate magnetic fields.
E. Waves are the propagation of a disturbance. They transport energy and momentum but do not transport matter.
This activity teaches students how to determine the age of an atom using an onion, cabbage, and Brussels sprouts. Aliens from another planet left these items on our planet and need our assistance determining their age. Based on the number of layers or half lives of the "elements," the students will be able to determine their age. The students will also be able to differentiate between the three types of radioactive decay and understand why radioactive elements are harmful.
Type: Lesson Plan
Vetted resources students can use to learn the concepts and skills in this benchmark.
Vetted resources caregivers can use to help students learn the concepts and skills in this benchmark.