Be prepared to explain the difference between relative dating and radiometric dating (Carbon 14). Pay attention to the diagram on page E30. The older something is, the less carbon-14 it will have.
Explain what a fossil is and be able to write about the ways a fossil if formed. What is a fossil mold and how was it formed? Make sure you can determine the differences between petrified, found in ice or sap, how an organism can leave an imprint and how a fossilized mold forms. The book explains this on pages E26-E27.
Explain how scientists determine the ages of rocks. This is explained on page E28. Be prepared to explain three different ways.
The Era we live in now is the Cenozoic Era. The longest era was the Pre-Cambrian. Pangaea was formed during the Paleozoic Era. Pangaea broke apart during the Mesozoic Era.
How is amber formed? How do insects and other materials get stuck within the amber?
Be able to explain what a fossil fuel is and how it was formed. See page E35.
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