Part IV Flashcards

1
Q

What type of fossil is a hollow area in sediment in the shape of all or part of an organism?

A

Mold

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2
Q

A leaf falls into a shallow lake and is rapidly buried in the sediment. The sediment changes to rock over millions of years. Which type of fossil would most likely be formed?

A

Carbon Film

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3
Q

How do scientists determine the absolute age of rocks?

A

Radiometric Dating

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4
Q

How can fossils be dated?

A

Comparing Positions.

Measuring Radioactive Elements

Knowing the age of the rock layer they’re in.

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5
Q

What is a trace fossil?

A

When print buried by sediment becomes solid

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6
Q

What is the approximate age of the Earth

A

5 Billion Years

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7
Q

_______ ________ help scientists match rock layers and are used to tell the relative ages of the rock layers in which they occur.

A

Index Fossils

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8
Q

What is the difference between the absolute and the relative age of the rocks?

A

absolute - for sure

relative - estimate (layer)

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9
Q

SI Units of Measure

Define / SI Unit used

A

Mass- Kilogram- Amount of matter an object is made of
Volume- Cubic Meter- Amount of space an object takes up.
Length- Meter- Distance between two points
Density- Kg/M Cubed - Mass per unit of volume
Temperature - Kelvin - How hot or cold something is

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