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Relative dating of rocks powerpoint


We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Published by Avis McCarthy Modified over 3 years ago. Rock record provides evidence of geological events and life forms of the past. Processes observed on Earth in the present also acted in the past.

Turn In: Mineral ID Lab;...

Earth is very old and has changed over time. Although many features of the Earth may seem to be unchanging over our lifetime, they are still changing, but on time scales of hundreds, thousands or even millions of years.

The universe is The Earth is 4.

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The moon is 4. Relative Dating Absolute Dating. Relative dating determines the sequence in which events occurred, but not how long ago they occurred. Usually applies to sedimentary rock, but can also be applied to lava flows and layers of ash from volcanic rock. Scientists use radioactive decay to determine the age of the rock. Proton Electron Neutron Which subatomic particles make up the mass of the atom?

Atoms of the same element can have different numbers of neutrons; the different possible versions of each element are called isotopes. For example, the most common isotope of hydrogen has no neutrons at all; there's also a hydrogen isotope called deuterium, with one neutron, and another, tritium, with two neutrons.

When the organism dies, the "clock" starts as the carbon decays, changing the ratio.

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