The ESL grammar worksheets on this page were developed for use in our own classes; each page explains the grammar points clearly and with simple language, and includes writing and review exercises to reinforce the material.
Write one interesting fact on your lab sheet.click here: CARBON-14 DATING ARTICLE.
Read about the latest forensics applications for use of Carbon-14 to identify the age of a victim and/or suspect.
Write a response to this article in your forensic science journal, or on your lab sheet.
On this page you will find several printable ESL grammar exercises dealing with all aspects of English grammar, including parts of speech, tenses, embedded questions, relative clauses, etc.
Go onto this excavation site and examine Dig Site 1 and Dig Site 2 (which have 4 rock layers each).
Find the fossils in each Dig, and send samples back to the Geochronology Lab for radiometric dating.Record in your results on the back of your lab sheet, including a diagram of the fossils found on the dig site.click here: HALF LIFE: RADIOACTIVE DECAY -- KHAN ACADEMY.Here you whill learn more about radioactive decay when you watch this 10 minute video explanation of Half Lives of Carbon/Nitrogen isotopes.while editing the formula you can use F4 function key to change the reference of a cell on which cursor is focused. By pressing F4, excel switches the references between relative (A2), absolute ($A), relative column & absolute row (A) and absolute column & relative row ($A2). Every week you will receive an Excel tip, tutorial, template or example delivered to your inbox. Understanding relative & absolute references plays a key role in writing effective spreadsheet formulas. What more, as a joining bonus, I am giving away a 25 page e Book containing 95 Excel tips & tricks.