science vocab
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| What is uniformitarianism? | The principle that geologic processes that occurred in the past can be explained by current geologic processes
🗑
|
||||
| Layers of rock called ____ , show the sequence of events that took place in the past. | Strata
🗑
|
||||
| What rocks are most studied? | Sedimentary rocks
🗑
|
||||
| The boundary between two beds are called what? | bedding plane
🗑
|
||||
| The principle is a sedimentary rock layer that is older than the one above it is called law of ____ | Superposition
🗑
|
||||
| The principle that a fault or intrusion is younger than the layers it cuts through is called the law of ______ | cross cutting
🗑
|
||||
| How long has the earth been around? | 4.6 billion years
🗑
|
||||
| The absolute age of a rock layer is its ______ age. | numeric
🗑
|
||||
| Using the rate of ____ to determine absolute age would be less accurate for a surface feature such as the grand canyon which is millions of years old. | Erosion
🗑
|
||||
| In general about 30 cm of sedimentary rock are ____ over a period of 1,000 years. | deposited
🗑
|
||||
| Some sedimentary rock layers show annual layers called ___ | varves
🗑
|
||||
| What layer is composed of darker , finer grains ? | Winter
🗑
|
||||
| Atoms of the same element that have different numbers of neutrons are called _____. | isotopes
🗑
|
||||
| The original radioactive isotope is called the ____ isotope. | Parent
🗑
|
||||
| The half-life is the time required for half of a radioactive sample to break down by decay to form the ______ isotope. | Daughter
🗑
|
||||
| What is the half-life of Uranium-238? | 4.5 billion years
🗑
|
||||
| The ages of wood, bones, shells, and other organic remains embedded in rock can be determined through_______ dating | Carbon-14
🗑
|
||||
| The scientific study of fossils is called ____ | Paleontology
🗑
|
||||
| Some insects become fossilized in hardened tree sap called ____ | Amber
🗑
|
||||
| Organisms buried in ____ do not decay, because bacteria do not survive such low temperatures. | Frozen soil, ice
🗑
|
||||
| When minerals in groundwater percolate through buried organic matter, the result is nearly perfect mineral replica of the object. This process is called _____. | Petrification
🗑
|
||||
| A fossil residue of a leaf that makes a shadow on sedimentary rock is called a ___. | Carbon films
🗑
|
||||
| Fossilized dung or waste is from an animal is called a | coprolites
🗑
|
||||
| The stones from the digestive tracts of dinosaurs are called __ | Gastrolittes
🗑
|
||||
| Fossilized tracks borings or burrows are called ____ fossils | Trace
🗑
|
||||
| Fossils that occur only in rock layers of particular geologic age are called ___ fossils. | index
🗑
|
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.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
shelberrzz
Popular Science sets