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Sequencing the rock layers will show students how paleontologists use fossils to give relative dates to rock strata. Students place on the table and work in small groups to sequence the eight cards by comparing letters that are common to individual cards, and therefore, overlap. The first card in the sequence has Card 1, Set A in the lower left-hand corner and represents the bottom of the sequence.If the letters T and C represent fossils in the oldest rock layer, they are the oldest fossils, or the first fossils formed in the past for this sequence of rock layers.
For example, most limestone represents marine environments, whereas, sandstones with ripple marks might indicate a shoreline habitat or riverbed.
Revelation TV’s favourite “creation scientist” Grady Mc Murtry has featured heavily in the station’s holiday schedule in a series of programmes in which he claims to be able to debunk evolution.
Paul Braterman’s blog provides an eloquent and expert deconstruction of the psuedoscience which is the stock in trade of creationists like Grady Mc Murtry.
The idea of millions and billions of years is difficult for children and adults to comprehend.
However, relative dating or time can be an easy concept for students to learn.
This also means that fossils found in the lowest levels in a sequence of layered rocks represent the oldest record of life there.
By matching partial sequences, the truly oldest layers with fossils can be worked out.And he doesn’t understand anything about evolution or dating of rocks or embryology or indeed anything else. Scientists have good evidence that Earth is very old, approximately four and one-half billion years old.The first page, available here if you’re lucky (the links to Chick Publications only seem to work at random), shows a well-primed creationist student arguing with a singularly ill-informed biology professor. The professor has been leading such a sheltered life that he’s never met these creationist arguments before. The study and comparison of exposed rock layers or strata in different areas of Earth led scientists in the early 19th century to propose that the rock layers could be correlated from place to place.