Radiocarbon is used to date things that were once living.
The age of a sample is determined by comparing the amount of radiocarbon isotope carbon-14 which was around when the sample was alive with what remains in the sample today.
As Tom Higham explains, this problem is being tackled by new pre-treatment techniques and is being applied to already existing Neanderthal bones in museums, with improved accuracy from the new techniques raising interesting new questions about human pre-history.
Robyn Williams: Astronomers deal in billions of years.
But we all know the answer here is obviously "all of the above," and if you say otherwise, you're lying.
IN A MARRIAGE, HOW WOULD YOU FEEL IF THE WOMAN MADE SIGNIFICANTLY MORE MONEY THAN THE MAN? " IF I HAD A BAD DAY, WHAT IS THE FIRST THING YOU WOULD DO FOR ME? This question should be rephrased to say "If YOU had a bad day, what is the first thing you would want ME to do for YOU?
If you choose anything other than respect, you're selfish and questionable.
Dating sites say they want to help you find the love of your life. After years and years of awkward dates and not-so-great luck with free online dating sites, I finally decided to get serious about meeting Mr. Yes, I joined “the paid dating site we shall not name”.
While I'd grown accustomed to the "three messages and meet" rule (you know, to help avoid spending too much time communicating with an excellent writer who happens to be beastly in person), I was not as prepared for the hilariously rude, pre-programmed questions the site wanted me to send to potential love interests to see if we'd make a great match.
They review the highlights of the game, confirm or disprove their predictions, and discuss the implications of the outcome of the game." Tell students they are going to focus on asking questions before they begin reading a text. Assessment Each group will be assessed using the scores from the presentation rubric, scored by their peers and teacher.
If possible, show a video clip of a pre-game sports cast. Immigration Examine the concept of immigration with your students using our lesson resources.
You may say something such as, "Who has watched a football, basketball, or baseball game on television? What books have he/she written or illustrated in the past? Tell students that the class will read the story together tomorrow, and learn to ask new questions while they are reading to help understand the story. Each TV crew should have six students, one student from each group, 1-6. Provide a time limit for each TV show, and tell students that each show should include: Give groups the opportunity to practice asking and discussing their questions before role playing or videotaping their show.