Earth Day 2009

Earth Day, celebrated April 22, is a day designed to inspire awareness and appreciation for the Earth's environment. It was founded by U.S. Senator Gaylord Nelson as an environmental teach-in in 1970 and is celebrated in many countries every year. This date is Spring in the Northern Hemisphere and Autumn in the Southern Hemisphere.

- Wikipedia

Lesson Plan Information
Title: Junk Mail Overload
Objectives: Students record the amount of junk snail mail received at their homes and explore ways to solve the junk mail problem.
Themes: trash, recycling, landfill, conservation, junk mail.
Grade Level: 3-12
Subject: Environmental Sciences
Materials: paper, pencils, postage scale or another scale that weighs small units
Provided by: Education World, submitted by Gary Hopkins
Link: http://www.education-world.com/a_lesson/02/lp260-02.shtml

James Dewey Watson (1928 - ) Was Born

James Watson is an American molecular biologist, best known as one of the co-discoverers of the structure of DNA - the double helix. For this Watson, Francis Crick, and Maurice Wilkins were awarded the 1962 Nobel Prize in Physiology or Medicine.

- Wikipedia

Lesson Plan Information
Title: Making DNA Jewelry Models
Objectives: This hands-on activity helps students construct a model of DNA to learn DNA structure to better understand protein synthesis. Impaired students can make a model using larger beads.
Grade Level: 4-12
Subject: Biology / Biochemistry
Materials: Seed beads, jewelry wire, key rings, earring wires, clasps, fishing line.
Time Needed: Two class periods
Provided by: Access Excellence @ the National Health Museum (Author: Catherine Ross, Berkley High School)
Link: http://www.accessexcellence.org/AE/AEC/AEF/1995/ross_jewelry.php