Unit 4- Assessment- Fossil Finders

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The Law of Superposition states that as long as rock layers are undisturbed, the oldest layer of rock will be.....

• on the bottom
• on the top
• in the middle
• in any order

Which of the following is NOT a characteristic of an index fossil?

• many have been found
• lived during a short period of time
• must be small
• must be easily recognizable
• must be found in many areas of Earth

What is absolute dating?

• comparing the age of one object to another
• determining the amount of mass in an object
• determining the exact age of something

Which of the following is NOT an absolute dating method?

• Carbon Dating
• Potassium-Argon Dating
• Convection Dating

Why will you never find a fossil in igneous rock?

• Fossils form under heat and pressure, so they can only exist in metamorphic rock
• Igneous rock is made from pressed sediments, so it is too compacted for fossils to form
• Igneous rock is made from cooled magma/lava, therefore no fossil could exist

Which rock layer is the youngest?

• D
• E
• F

Which rock layer is the oldest?

• D
• E
• F

What time period is layer D from?

• Cambrian
• Permian
• Silurian