CERN — the European Organization for Nuclear Research

CERN Anti-matter Lesson Plan - The Mother of all Conundrums

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CERN Education Group


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To raise students awareness of one of the universe's biggest mysteries: Why our universe is composed of matter rather than antimatter


This lesson plan is part of the Anti-Matter Teaching Module (see related documents).  
Duration of lesson:  approximately 30 minutes.  ( duration may vary depending on how it is used)
Care has been taken to ensure that the mathematical knowledge required for students to successfully complete these lesson plans harmonizes with that which is expected of students in the 9th and 10th forms, according to a representative sample of national curricula. For some of the more calculation-intensive lesson plans, teachers may find the Background Materials helpful. Teachers may also discover that the required calculations can provide an opportunity for training in the use of calculators and/or computer graphing programs.
In this lesson, the students will learn about a mystery that has yet to be solved: Why is our Universe composed of matter rather than antimatter?
Upon the completion of this lesson, the student shall:
-Understand how a small difference in the amount of matter and antimatter very early in the history of our universe led to the disappearance of antimatter.
-Understand that nature has a tiny preference for matter over antimatter
-Become aware that the question of why our universe is composed of matter is still one of sciences's unsolved mysteries.

Post date: Fri, Oct 08, 2010 — 12:18
Updated date: Tue, Nov 20, 2012 — 04:53

Learning Topics

Matter / Antimatter