Section 2: Earth's History
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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| Radiometric Dating | A method of establishing that age of a material
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| Isotope | Atoms of the same element that differ in the number of neutrons contained
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| Mass Number | The total number of protons and neutrons in the nucleus
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| Radioactive Decay | The nuclei release particles or radiant energy, or both until the nuclei become stable
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| Radioactive Isotope | Isotopes that undergo radioactive decay
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| Half-Life | The time is takes for 1/2 of the sample size to decay to a stable form
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| Microsphere | Spherical in shape and are composed of many protein molecules that are organized as a membrane
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| Coacervate | Collection of droplets that are composed of molecules o different types, including lipids, amino acids, and sugars
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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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