Chapter 8 Project
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Fossil | The remains of an acient organism preserved in rock
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| Carbon Film | A thin coating of carbon left behind by a decayed animal
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| Sedimentary Rock | A type of rock formed when particles of organisms and other rocks are cvemented together
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| Trace Fossil | Things left behind by organisms, which shows what they did
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| Mold | A hollow space where an organism was buried and dissolved
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| Cast | A copy of an oganism's shape
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| Petrified Fossil | A type of fossil where minerals replace all of an organism
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| Paleontoligist | A scientist who studies fossils to learn about ancient organisms
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| Scientific Theory | A well-tested concept that explains a wide range of observations
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| Evolution | The theory that states that organisms change over time
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| Extinct | An organism that has died out
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| Relative Age | The age of a rock compared to rocks around it
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| Absolute Age | The age since a rock formd
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| Law of Superstition | The principle that states that rock layers are younger than thoses below it
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| Extrusion | Igneous rock that has hardened above the surface
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| Intrusion | Igneous rock that has hardened under the surfac
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| Fault` | A break or crack in the Earth's surface
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| Unconformity | Where young rock meets old rock
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| Index Fossil | Fossils of organisms that have lived for a short tine
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| Atom | The smallest particle where the substance is still that substance
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| Element | A substance where all the atoms are the same and cannot be broken down into another substance
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| Radioacive Decay | The process in which a radioactive element releases particles and energy
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| Half-life | The time it takes for half of a radioactive element to decay
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| Geologic Time Scale | The record of geologic events and organisms
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| Era | The three units that divide the time between Precambrian and present
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| Period | The unit of time that divides eras
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| Vertabrate | An animal with a backbone
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| Invertabrate | An animal without a backbone
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| Amphibian | An animal that lives half its life in water and half of its life in land
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| Reptile | A cold-blooded, egg laying vertabrate
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| Mass Extinction | The extinction of several species at the same time
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| Mammal | A warm-blooded vertabrate that feeds their young milk
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
JinNa
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