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social studies 6th
geology of Louisian
| Question | Answer |
|---|---|
| _________________study of how the Earth was formed | geology |
| __________________supercontinent that connected world land masses | pangaea |
| ________________when the landmasses began to drift apart | continental |
| ___________________a relaticely low flat region built up by river sedimant from the Mississippi River | Gulf Coastal |
| __________________low areas where flood waters gather | flood plains |
| _________________bodies of water that wind their way back and forth in loops and curves | meanderung rivers |
| _________________when soil falls to the bottom of a river at a meander | point bar |
| _______________strips of elevated land along the riverbank | natural levees |
| _________________when floodplains erode they will leave old riverbeds as elevated ridges. | terraces |
| __________________a landform shaped like a fan or birds foot formed when a river flows into an ocean. | deltas |
| ___________________wet grasslands formed by river sediment deposited along the coast | coastal marshes |
| ________________islands that appear and disppear at the mouth of the Mississippi River | mud lumps |
| __________________are created after a river abandons its delta | barrie vislands |
| ___________________ridges of high ground in the coastal march that run parallel to the coastline. | chenrers |
| Scientists who study how the Earth was formed are called _________________ | geologists |
| Pangaea is Greek for ________________________ | all land |
| ______________ are formed between continents when they began to drift apart. | oceans |
| Over millions of years, the ____________________ river deposited sediments into the _____________________. | mississippi gulf of mexico |
| This created the state of ________________ which is the only state made up entirely of the ___________________________. | Louisiana Gulf Coastal Plains |
| ________________ serve as a reservoir to hold excess water until the river can move it to the Gulf. | reservoir |
| A straight body of water will go around obstacles creating ________________ | curves |
| Loops and curves in a river are called ______________. | meanders |
| A point bar continually builds into the river, forcing the river to ____________ the opposite bank and get bigger. Eventually it gets so big it __________ off the river | erode cuts |
| _________________ is a city that was built along the Red RIver until the river changed course in 1834. | Natchitoches |
| the red river left behind ____________________________ that used to be part of the river. | cane river lake |
| As rivers flood the land, ______________ is deposited on the land enar the bank creating a natural levee. | sediments |
| Terraces can be _________to ________ feet higher than the surrounding floodplain. | 50 100 |
| ____________________________ in North Louisiana is an example of a terrace. It is 100 miles long and 20 miles wide. | Macon Ridge |
| The most famous delta is where the Mississippi River enters the Gulf which is located in ______________________. | Louisiana |
| __________________ is Louisiana formed by the Mississippi River flowing into the Gulf of Mexico (America) | marshes |
| Ours is the largest marshland area in the _________________ | United States |
| Coastal marshes can have _______________ water which is a mixture of fressh and saltwater. | brackish |
| Mud lumps explode out of a river because of _________________. They can be 12 feet high and cover up to __________________ acres. They can last for ______________ until they erode away. | pressure 20 years |
| Give two reasons why barrier islands are important to Louisiana. Give one example of a barrier island | 1. absourb storms 2. protect marsh lands from erosion Grand Isle |
| Explain why people choose to live on chenier and give an example of one. |
Created by:
Ouellettegirls