Fossi

How do fossils help scientists

• They tell them what going to happen

• They tell use where to find other fossils

• They tell us what the weather is going to be in a year

• Fossils in rocks have given scientists insight into the earths history

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NGSS.MS-LS4-1

NGSS.MS-LS4-2

What is the name of the scientist that study fossils

• Paleontologist

• faleontolog

• halooligi

• Rokoliogist

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NGSS.MS-LS4-1

Forms when a mold is filled with sand or mud that hardens into the shape of the organism

• Petrified fossil

• Trace fossil

• Cast fossil

• Preserved fossil

jenna know that scientists use several methods to help determine the relative ages of different rock layers, including using fossils. which of the following are other ways to determine the relative age of rock layers

choose three

• law of superposition

• rock half-life

• igneous intrusions

• faults

• radiometric dating

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NGSS.MS-ESS1-4

mia enjoys studying fossils. she learned how fossils called index fossils are found in the rock layers. The index fossils help scientists study rock ages, in what way do index fossils help determine rock ages

• index fossils are widely distributed and are always found in every sedimentary rock layer

• index fossils were around only short time but they show up in many rock layers

• index fossils are widely distributed but were not around long and so they show up in only a few rock layers

• index fossils are widely distributed and were around for a long time and so they show up in may rock layers

which of the following is a condition necessary for fossilization to occur

• rapid and permanent burial

• presence of heat

• lack of oxygen

• continued sediment accumulation

• absence of compression

the law superposition states that

• younger rocks are deeper in the earth's crust

• older rocks are deeper in earth's crust

• it is impossible to tell which rocks are older

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NGSS.MS-ESS1-4

what would be the best explanation as to why you may find seashells atop a mountain

• animal with shells migrate there before they die

• people leave seashells at the tops of mountains

• the mountain was once submerged in water

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NGSS.MS-ESS2-2

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Suppose that a paleontologist finds a type of fossil in one rock layer but in none the surrounding layers. Now suppose that a different paleontologist, working 3,000 km away finds the exact same fossil in one rock layer but in not of the surrounding layers. layers. later, the two paleontologists meet to discuss their findings. What would the paleontologist most likely conclude

• the rock layers were formed during different time periods because they were found far apart

• the fossils were formed by species that look similar but lived at different times

• the fossils were made by a species that lived for hundreds of millions years

• the rock layers containing the fossils were made during the same time period

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NGSS.MS-ESS2-3

NGSS.MS-LS4-1

which of these would best preserve and insect over thousands, or even millions of years, so that its dna could one day be studied

• an insect can be trapped in tree sap which can harden over time into amber

• an insect is preserved in igneous rock and can be carbon dated

• an insect is covered by sediment and forms a cast fossil over time

• an insect can have its parts replaced by minerals permineralization sometimes know as petrification