24 week assessment Science-Gwen Gould
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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| what is the scentifically accepted age of the earth | show 🗑
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| show | Uniformitarianism is the principle that geologic processes that occurred in the past can be explained by current geologic processes. It was identified by James Hutton.
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| * What does the Law of Superposition state? | show 🗑
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| * What does the Law of Cross-cutting Relationships state? | show 🗑
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| show | The half-life is the time it takes for half of the radioactive parent isotope to decay into the stable daughter isotope.
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| show | A method of dating fossils (wood, shells, bones, etc.) that are less than 70,000 years old.
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| show | A fossil that occurs in a rock layer of a particular geologic age—lived for a short time, was very common and world-wide.
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| show | There were not a lot of life forms (mostly bacteria), no hard parts to fossilize, and many of the rocks from that time period have been deformed (melted, eroded, faulted).
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| * What was the major cause of the Permian extinction? | show 🗑
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| * What is the major cause of the Cretaceous extinction? | show 🗑
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| * What marks the boundary between the Pleistocene and the Holocene epochs? | show 🗑
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| show | The photosphere. The chromosphere . The corona
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| show | Caused by the interaction of the solar wind and Earth’s magnetosphere. Bright bands of light in the sky mostly seen at higher latitudes.
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| * What is the difference between a solar flare and a coronal mass ejection? | show 🗑
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| * How does nuclear fusion create energy in the Sun’s core? | show 🗑
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| * What is a sunspot? What is the average length of the sunspot cycle? | show 🗑
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| show | The scientific study of the Universe
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| * What is the scientifically accepted age of the universe? | show 🗑
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| show | The theory that the universe began as a small point of matter that suddenly and rapidly began expanding outward.
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| * What is the cosmic background radiation? | show 🗑
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| * What galaxy do we live in? | show 🗑
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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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gwen.gould
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