An email with a link to:
was emailed to:
Thanks for sharing About.com with others!
How to Make a Vinegar Trap to Catch Fruit Flies10 Tips for Getting Rid of Fruit FliesWhere Do Fruit Flies Come From?Robin Williams QuotesTips and Strategies for the 5 Common Application Essay Optio...
Discuss in my forum
By Anne Marie Helmenstine, Ph.D.
Photograph of graphite or black lead, one of the forms of elemental carbon.
Definition: Black lead is an alternate name for the graphite allotrope of carbon.
Also Known As: graphite, blacklead
Examples: Black lead is the substance found in most pencis.
Anne Marie Helmenstine, Ph.D.
©2014 About.com. All rights reserved.