Let's watch some videos and pictures about Christmas and New Year.
1) VIDEO: Christmas in Britain. What do British children do at Christmas? :)
2) VOCABULARY.
2.1) Christmas words
2.2) New Year words
Happy New Year 2015, my friends! :)
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![]() ![]() Radiocarbon DatingRadiocarbon dating is a method for determining the age of carbonaceous materials—especially ancient archaeological specimens—that relies on the presence of a naturally occurring isotope called carbon-14. After an organism dies, the amount of carbon-14 in its remains gradually decreases through radioactive beta decay. Measuring the amount of carbon-14 in an organism's remains thus allows scientists to determine how long it has been dead. How do atomic bombs affect atmospheric carbon-14 levels? More... Discuss |
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